262 results on '"Raviña M"'
Search Results
102. Caracterización bioquímica y microbiológica de suelos forestales con distintos tratamientos selvícolas
- Author
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Díaz Raviña, M., Martín, A., and Carballas, Tarsy
- Abstract
Trabajo presentado en la XXVII Reunión Nacional del Suelo: La magia del suelo, celebrada en Huesca (España), del 2 de junio al 1 de julio de 2009
- Published
- 2009
103. Respuesta de la población microbiana a los agentes retardantes de llama
- Author
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Barreiro, Ana, Martín, A., Carballas, Tarsy, Díaz Raviña, M., and Ministerio de Ciencia e Innovación (España)
- Abstract
Trabajo presentado en las Jornadas de la Red Temática Efectos de los incendios forestales sobre los suelos (FUEGORED), celebradas en Sevilla-Cortegana (España), del 4 al 6 de noviembre de 2009, Actualmente se están empleando agentes retardantes de llama como aditivos del agua para mejorar la eficacia en la extinción de los incendios forestales. Sin embargo, a pesar de su interés, se desconocen los efectos de estos compuestos sobre el medio edáfico (propiedades físicas, químicas y biológicas). En el presente trabajo se examinó, bajo condiciones de campo, la respuesta de la población microbiana a la adición de 3 agentes retardantes de llama a dosis normales de aplicación. El estudio se realizó con un Cambisol Húmico bajo matorral sometido a una quema controlada y considerando los siguientes tratamientos: suelo control no quemado y suelo quemado adicionado con agua, espumante, Firesorb y polifosfato amónico. Las muestras de suelo se recogieron a distintos intervalos de tiempo durante 5 años analizándose diversas propiedades relacionadas con la masa (C biomasa), actividad (β-glucosidasa y ureasa) y diversidad o estructura (ácidos grasos de los fosfolípidos, PLFA pattern) de la comunidad microbiana edáfica. Los resultados mostraron que inicialmente la población microbiana resultó afectada negativamente por la quema controlada y que con el tiempo tiende a recuperarse; sin embargo, al cabo de 1 año los efectos sobre la masa y actividad microbiana persistían y 5 años después de la quema todavía se observó un efecto sobre la diversidad microbiana. Los datos también indicaron que, en comparación con el suelo quemado adicionado con agua, el polifosfato amónico y el Firesorb fueron los agentes retardantes que ejercieron una mayor influencia sobre la población microbiana y que el efecto del Firesorb sobre la diversidad microbiana se detecta incluso después de 5 años de su aplicación. Los resultados, por tanto, pusieron de manifiesto la utilidad de las medidas de biodiversidad mediante el análisis de los ácidos grasos de los fosfolípidos (PLFA pattern) para detectar el impacto a largo plazo de la aplicación de agentes retardantes de llama sobre el ecosistema edáfico., El estudio fue subvencionado por el Ministerio de Ciencia e Innovación (Proyecto AGL2008-02823)
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- 2009
104. New tools for forest fire fighting and forest ecosystems recovery
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Carballas, Tarsy, Paz-Andrade, M. J., Alonso-Betanzos, A., Carballo, E., Caselles, V., Díaz Raviña, M., Gago, A., Jiménez, Enrique, Legido Soto, José Luis, Martín, A., Mato, M. M., Varela, A., and Vázquez-Galiñanes, Alejandro
- Abstract
Trabajo presentado en las Jornadas de la Red Temática Efectos de los incendios forestales sobre los suelos (FUEGORED), celebradas en Sevilla-Cortegana (España), del 4 al 6 de noviembre de 2009, The N.W. of Spain together with the North of Portugal are the European zones most affected by forest wildfires and they are within the worldwide areas with the most number of fires per ha and inhabitant (Carballas, 2007). In these and other countries wildfires are the main factor of forest ecosystems degradation mainly due to post-fire erosion and consequently they produce enormous ecological, social and financial damages. Therefore measures for fire prevention, fire fighting, post-fire soil protection and ecosystem recovery have to be taken. Modelling and knowledge-based systems are important tools for forest fire fighting which were successfully explored by our group (THOR GROUP) with this aim., We have first developed an Expert System, which comprises three computer tools: a) a Forest Fire Risk Index for fire prevention, that predict four days in advance (or more if reliable forecasts are available) the areas with risk of fire (four levels: low, medium, high and extreme risk) with 89% of fire estimation and less than 15% of overestimation; b) a System for the Management of the Resources for Fire Extinction, which gives the difficulty of fire control based on an algorithm that predicts fire propagation (rate and direction), establishes the fire level and produces a specific Plan for fire extinction; and c) a System for the Management of the Burnt Soils, which after analysing the fire damages on soil and plants, gives a plan for the immediate protection of the burnt soil and for the ecosystem recovery (Betanzos et al., 2003). Then, we has built: d) a Mathematical Model for the Prediction of the Forest Fires Peaks, which predicts three months in advance, with an error of no more than 3 days, the temporal period and the initiation date of the winter and the summer peaks, that usually are registered in Galicia (N.W. of Spain) and other regions, which is very important for the temporal contract of very expensive aerial resources; e) a Forest Fire Risk Index for Asturias (N of Spain); f) a Forest Fire Risk Index for Cantabria (N of Spain); and g) a Forest fire Risk Index based on satellite images (Sánchez et al., 2008)., The algorithms for the different systems were elaborated by using the historic forest fire and meteorological databases for more than 30 years, taking also into account structural characteristics. The models, as well as the corresponding GIS, initially made for the Galicia Community, were or can be adapted to other regions or countries having forest fire data registered for at least 10 years.
- Published
- 2009
105. Restauración de ecosistemas forestales quemados de Galicia (NO de España): aplicación de residuos orgánicos e impacto de los retardantes de llama
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Carballas, T., Martín, A., González Prieto, Serafín Jesús, and Díaz Raviña, M.
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education - Published
- 2009
106. Efectos a corto y medio plazo de tres incendios forestales no controlados sobre las propiedades del suelo en Galicia
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Martín, A., Díaz Raviña, M., and Carballas, T.
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Incendios Forestales ,Recuperación del suelo ,Propiedades edáficas ,Hidratos de C ,Zona templado-húmeda - Abstract
Trabajo presentado en las Jornadas de la Red Temática Efectos de los incendios forestales sobre los suelos (FUEGORED), celebradas en Valencia (España), del 3 al 5 de diciembre de 2008, Se evalúa el efecto a corto y medio plazo de los incendios forestales no controlados sobre el medio edáfico. El estudio fue realizado con dos Leptosoles y un Cambisol Húmico, desarrollados sobre granito y esquistos, respectivamente, y bajo pinar, localizados en la zona templado húmeda de España (Galicia). Se recogieron muestras de la capa superficial (0-5 cm) de los suelos quemados y de los correspondiente suelos no quemados, inmediatamente y 3, 6 y 12 meses después del incendio, y se analizó un amplio rango de propiedades del suelo (textura, pH, estabilidad estructural, cationes de cambio, C orgánico, N total, óxidos de Fe y Al, nutrientes disponibles e hidratos de C). Para facilitar la interpretación de los datos, el impacto del fuego fue evaluado normalizando los valores obtenidos para el suelo quemado en base a las fluctuaciones observadas con el tiempo en el suelo control no quemado (media±SD). Los resultados mostraron un comportamiento uniforme frente al fuego de la fracción lábil de la materia orgánica del suelo, los hidratos de C, al detectarse en todos los suelos una reducción de su contenido inmediatamente después del incendio, efecto que perduraba al cabo de 1 año. Por el contrario, el fuego indujo un efecto variable en la mayoría de las restantes propiedades edáficas, observándose aumentos/descensos de los valores iniciales o incluso ningún efecto dependiendo de la variable analizada, del suelo considerado y de la severidad del incendio. Con el tiempo estas propiedades tienden a recuperarse; sin embargo, después de 1 año, en general no se habían alcanzado los valores presentados por los correspondientes suelos no quemados. Los resultados ponen de manifiesto la complejidad existente a la hora de evaluar el impacto a corto y medio plazo de los incendios forestales sobre el medio edáfico y parecen indicar que, de todas las propiedades analizadas, la relación hidratos de C/C orgánico parece ser el mejor indicador de dicho impacto.
- Published
- 2008
107. Lucha integral contra los incendios forestales en Galicia: investigaciones realizadas por el Grupo de Bioquímica del Suelo del IIAG-CSIC
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Díaz Raviña, M., Martín, A., González Prieto, Serafín Jesús, and Carballas, T.
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Incendios Forestales ,Implantación cubierta vegetal ,Propiedades bioquímicas y microbiológicas ,Recuperación del suelo ,Residuos orgánicos ,Zona templado-húmeda ,Retardantes de llama - Abstract
Trabajo presentado en las Jornadas de la Red Temática Efectos de los incendios forestales sobre los suelos (FUEGORED), celebradas en Valencia (España), del 3 al 5 de diciembre de 2008, Los incendios forestales constituyen una de las principales causas de deforestación de los bosques gallegos, razón por la cual este problema ha sido abordado desde 1990 hasta la actualidad por el Grupo del IIAG-CSIC desde distintas perspectivas que abarcan desde la prevención y la extinción de los incendios hasta el impacto de los mismos sobre el sistema suelo-planta y la posterior restauración de estos ecosistemas. Inicialmente las investigaciones se centraron en evaluar los efectos a corto, medio y largo plazo de incendios forestales no controlados de diferente severidad sobre el medio edáfico, contemplando tanto parámetros físicos y químicos como bioquímicos y microbiológicos, particularmente estos últimos. En una segunda etapa, se procedió a evaluar la eficacia de diversas prácticas de protección y/o recuperación de suelos quemados, tales como la implantación temprana de una cubierta vegetal herbácea, sola o en combinación con fertilización inorgánica u orgánica, utilizando diversos residuos orgánicos (purín de vacuno, lodos y gallinaza) y el uso de biofertilizantes (cianobacterias, Rhizobium). Por lo que respecta a la prevención y a la extinción de incendios se elaboró, en colaboración con otros grupos, un Sistema Experto específico para Galicia para la lucha integral contra los incendios forestales. Finalmente, también se están evaluando las posibles repercusiones de los agentes retardantes de llama utilizados en la extinción sobre la regeneración post-incendio del suelo. El objetivo de este trabajo es exponer someramente los resultados más relevantes de los diversos estudios de laboratorio, invernadero y campo realizados con muestras de suelos quemados, desarrollados sobre rocas ácidas y bajo vegetación de bosque o matorral, en un clima templado-húmedo, representativos de los ecosistemas más afectados por incendios no controlados de diferente severidad en la Comunidad de Galicia.
- Published
- 2008
108. Response of soil microbial communities to atrazine addition
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Díaz Raviña, M., Martín, A., Mahía, Jorge, Cabaneiro, Ana, González Prieto, Serafín Jesús, and Carballas, Tarsy
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Trabajo presentado en el II Encuentro Internacional de Enzimología del Suelo (SGSE’08), celebrado en Burgos (España), del 11 al 12 de diciembre de 2008
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- 2008
109. Dinámica y efectos de la atrazina en suelos agrícolas de la zona templado húmeda (Galicia, N.O. de España)
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Díaz Raviña, M., Mahía, Jorge, Martín, A., Cabaneiro, Ana, Carballas, T., Xunta de Galicia, and Ministerio de Ciencia e Innovación (España)
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U-ring 13C-atrazine ,Contaminación del suelo ,Soil pollution ,Residuos extraíbles y no extraíbles ,Propiedades bioquímicas ,Atrazine degradation ,U-ring 13C-atrazina ,Biochemical properties ,Degradación de atrazina ,Extractable and non-extractable residues - Abstract
[ES] El estudio sintetiza los resultados de varios experimentos que examinan el impacto de la dinámica de la atrazina (degradación y distribución de residuos, respuesta de la población microbiana) en suelos de cultivo ácidos del norte de España. Se estudió, bajo condiciones de laboratorio y campo, la mineralización de la atrazina y las fracciones extraíble (atrazina, hidroxiatrazina, desetilatrazina y desisopropilatrazina) y no extraíble, así como las propiedades bioquímicas (biomasa microbiana, respiración del suelo, carbohidratos solubles, actividades -glucosidasa y ureasa), a diferentes intervalos de tiempo después de la adición del herbicida en dosis normales de aplicación agronómica, a suelos con diferentes características (contenido de carbono, textura e historial de aplicación de atrazina). Se observaron resultados similares en los experimentos de laboratorio y campo, mostrando que el destino y comportamiento de la atrazina variaba en función de las características del suelo. La ruta principal de degradación de la atrazina fue la microbiana a través de la rápida ruptura del anillo s-triazínico, siendo la degradación mayor a medida que aumenta el historial de aplicación. Los principales metabolitos encontrados en la fracción extraíble fueron la hidroxiatrazina y la desisopropilatrazina, lo que parece indicar que tanto la degradación química como la biológica están implicadas en la ruta de descomposición de la atrazina. La formación de residuos no extraíbles también constituye un importante proceso abiótico de atenuación del impacto de la atrazina, particularmente en el suelo con un elevado contenido de materia orgánica y de arcilla. Como consecuencia de la adición de atrazina se observó un efecto variable o incluso un efecto nulo sobre la mayoría de las propiedades bioquímicas analizadas; por el contrario, la mineralización del C se incrementó considerablemente indicando que la aplicación de atrazina a dosis normales de campo puede tener importantes repercusiones en el ciclo del C de estos suelos ácidos., [EN] This study summarized the results of several experiments examining the impact by atrazine application (degradation and residues distribution, microbial communities changes) in agricultural acid soils from northern Spain. The mineralization of atrazine and the formation of extractable (atrazine, hydroxiatrazine, deethylatrazine and deisopropylatrazine) and non-extractable or “bound residues” as well as the biochemical properties (microbial biomass, soil respiration, soluble carbohydrates, urease and -glucosidase activities) were evaluated at different times following atrazine application under both laboratory and field conditions at normal agronomic doses to contrasting soils (organic C, texture and atrazine application history). The results of laboratory and field experiments were coincident showing that the fate and behaviour of atrazine exhibited different patterns depending on soil characteristics. Rapid microbial degradation through s-triazine ring cleavage was the main decomposition pathway of the atrazine, the degradation capacity being enhanced by repeated herbicide application. Hydroxyatrazine and deisopropylatrazine were the main metabolites found in the extractable fraction, this seems to show that both chemical and biological processes are involved in atrazine degradation. The formation of non-extractable residues also constituted other important abiotic process for attenuation of the atrazine impact in these acid soils, particularly in soils with higher organic matter and clay contents. A variable effect or even no effect was observed on most biochemical properties analyzed as consequence of atrazine addition; in contrast C mineralized increased notably after herbicide application showing clearly that atrazine application at normal agricultural rates may have important implications in the C cycling of these acid soils., This study was supported by Secretaría Xeral de Investigación e Desenvolvemento da Xunta de Galicia (Project PGIDT01PXI40002PR) and by Spanish Ministerio de Ciencia e Innovación (Project AGL2005-05726-C02-01).
- Published
- 2008
110. Soil microbial biomass under pine forests in the north-western Spain: influence of stand age, site index and parent material
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Mahía, J., Pérez-Ventura, L., Cabaneiro, A., and Díaz-Raviña, M.
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ecology ,silviculture ,Microbial C ,extractable C ,metabolic quotient ,reforestation ,Pinus pinaster ,Pinus sylvestris ,C microbiano ,C extraíble ,coeficiente metabólico ,plantación forestal - Abstract
The effects of stand age, site index and parent material on soil biochemical properties related to biomass (extractable C, microbial C and metabolic quotient) were examined in the 0-15 cm mineral soil layers of Pinus pinaster and Pinus sylvestris stands from NW Spain. Two productivity levels (low and high site index), two ages (young and old) and two parent soil materials (granite and acid schists) were considered. The data indicated that there were differences in microbial parameters in soils under different species. In general in P. pinaster forest higher values of biochemical parameters, expressed on organic C basis, were observed in the stands of high site index as compared with the low ones; in contrast, in P. sylvestris no differences among stand site index were detected. In both species different results were also observed depending on parent material and a significant effect of stand age was detected for extractable C and microbial C in P. pinaster forest developed over granite. The data seem to indicate that measured parameters may have the potential to be used as indicators of the effect of forest management on soil organic matter quality., Se examina la influencia de la edad de la plantación, índice de sitio y material de partida sobre las propiedades bioquímicas relacionadas con la biomasa microbiana (C extraíble, C microbiano y coeficiente metabólico) del horizonte superficial de suelo (0-15 cm) de plantaciones de Pinus pinaster y Pinus sylvestris del Noroeste de España. Se consideraron dos índices de sitio (baja y alta calidad), dos edades de plantación (joven y vieja) y dos materiales de partida (granito y esquistos). Los datos indicaban que hubo diferencias entre los parámetros microbianos de suelos bajo diferente vegetación. En general, para P. pinaster se observaron valores más altos de los parámetros bioquímicos, expresados en base al contenido de C orgánico, en las plantaciones de alta calidad que en las de baja calidad; por el contrario en las plantaciones de P. sylvestris no se detectaron diferencias con respecto al índice de sitio. En las plantaciones de ambas especies se observaron resultados diferentes dependiendo del material de partida y también se observó un efecto significativo de la edad de la plantación sobre el C extraíble y el C microbiano en suelos desarrollados sobre granito bajo P. Pinaster. Los resultados parecen indicar que las propiedades bioquímicas medidas pueden ser utilizadas como indicadores del efecto del manejo forestal sobre la calidad de la materia orgánica del suelo.
- Published
- 2006
111. Lipopolysaccharide: An indispensable source for potential targets and therapeutic design against Gram-negative bacteria
- Author
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Chiranjeevi Pasala, Sudheer Kumar Katari, Ravina Madhulitha Nalamolu, Sharon Priya Alexander, Umakanth Naik Vankadoth, Siva Ranjani Pakala, and Amineni Umamaheswari
- Subjects
gram-negative pathogen ,lipid a ,lipopolysaccharide ,o-antigen ,potential drug targets ,Medicine - Abstract
Gram-negative bacteria show more drug-resistant than Gram-positive bacteria due to unique structural attribute and cause significant morbidity and mortality across the globe. Such characteristic structure is an organelle lipopolysaccharide (LPS) on the outer membrane (OM) of cell wall essential for growth and survival of bacteria. LPS is a major cell wall component formed by dedicated transenvelope multiprotein complexes that shield the underlying peptidoglycan layer and play a key role in host–pathogen interactions with the innate immune system. Moreover, which constitutes the surface-exposed molecules with lipid portion in the outer leaflet of the OM that able to show antibiotic resistance and also responsible for the variety of biological effects associated with bacterial sepsis. LPS synthesis and structure are a conserved subject in infections during bacterial adaptive changes. Such changes ensue immune evasion, prolonged inflammation and augmented antibiotic resistance by working as molecular decoys which titrate the antimicrobials away from its intracellular antibiotic target. Herein, this review summarises the key features of LPS structure, function and biosynthesis. Moreover, it highlights the broad-spectrum conserved targets in the Raetz pathway without an alternative way for LPS biosynthesis vital for the development of novel therapeutic interventions against Gram-negative pathogens.
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- 2021
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112. Short- and medium-term evolution of soil properties in Atlantic forest ecosystems affected by wildfires
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Martín, A., primary, Díaz-Raviña, M., additional, and Carballas, T., additional
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- 2011
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113. Evolución de la gallinaza durante su almacenamiento en condiciones de campo
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López Abuín, L., Díaz Raviña, M., Arias Estévez, Manuel, López Abuín, L., Díaz Raviña, M., and Arias Estévez, Manuel
- Published
- 2002
114. Organic matter, nitrogen, phosphorus and microbial population evolution in forest humiferous acid soils after wildfires
- Author
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Carballas, Modesto, Acea, M. J., Cabaneiro, Ana, Trasar-Cepeda, Carmen, Villar, M. C., Díaz Raviña, M., Fernández, Irene, Prieto-Fernández, Ángeles, Saa, A., Vázquez, F. J., Zehner, R., and Carballas, T.
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education - Published
- 1993
115. Naphthalimide-Based Template for Inhibitor Screening via Cross-Linking and In-Gel Fluorescence: A Case Study against HCA II
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Monisha Singha, Sayantani Roy, Ravina Moirangthem, Amit K. Das, and Amit Basak
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Chemistry ,QD1-999 - Published
- 2019
- Full Text
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116. Tolerance (PICT) of the Bacterial Communities to Copper in Vineyards Soils from Spain
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Díaz-Raviña, M., primary, de Anta, R. Calvo, additional, and Bååth, E., additional
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- 2007
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117. Atrazine Degradation and Residues Distribution in Two Acid Soils from Temperate Humid Zone
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Mahía, J., primary and Díaz-Raviña, M., additional
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- 2007
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118. Integrating ecological principles in fire management: Impact of fire fighting chemicals on soil-plant systems from temperate humid zone
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Couto-Vázquez, A., primary, Mahía, J., additional, Díaz-Raviña, M., additional, Carballas, T., additional, and González-Prieto, S.J., additional
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- 2006
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119. Community DNA hybridisation and %G+C profiles of microbial communities from heavy metal polluted soils
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Griffiths, B.S, primary, Dı́az-Raviña, M, additional, Ritz, K, additional, McNicol, J.W, additional, Ebblewhite, N, additional, and Bååth, E, additional
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- 2006
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120. Cultivation effects on biochemical properties, C storage and 15N natural abundance in the 0–5cm layer of an acidic soil from temperate humid zone
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Díaz-Raviña, M., primary, Bueno, J., additional, González-Prieto, S.J., additional, and Carballas, T., additional
- Published
- 2005
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121. Microbial community structure in forest soils treated with a fire retardant
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Díaz-Raviña, M., primary, Bååth, E., additional, Martín, A., additional, and Carballas, T., additional
- Published
- 2005
- Full Text
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122. Dynamics of the co-composting of barley waste with liquid poultry manure
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Guerra-Rodríguez, E, primary, Vázquez, M, additional, and Díaz-Raviña, M, additional
- Published
- 2003
- Full Text
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123. Co-composting of chestnut burr and leaf litter with solid poultry manure
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Guerra-Rodrı́guez, E., primary, Diaz-Raviña, M., additional, and Vázquez, M., additional
- Published
- 2001
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124. Co-composting of barley wastes and solid poultry manure
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Guerra-Rodrı́guez, E, primary, Vázquez, M, additional, and Dı́az-Raviña, M, additional
- Published
- 2000
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125. Cultivation effects on biochemical properties, C storage and 15N natural abundance in the 0–5 cm layer of an acidic soil from temperate humid zone
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Díaz-Raviña, M., Bueno, J., González-Prieto, S.J., and Carballas, T.
- Published
- 2005
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126. Insights Into Peptide Inhibition of Alpha-Synuclein Aggregation
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James H. Torpey, Richard M. Meade, Ravina Mistry, Jody M. Mason, and Jillian Madine
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alpha-synuclein ,electron microscopy ,neurodegenerative disease ,NMR ,Parkinson disease ,peptide interaction ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
α-Synuclein (aSyn) aggregation is an attractive target for therapeutic development for a range of neurodegenerative conditions, collectively termed synucleinopathies. Here, we probe the mechanism of action of a peptide 4554W, (KDGIVNGVKA), previously identified through intracellular library screening, to prevent aSyn aggregation and associated toxicity. We utilize NMR to probe association and identify that 4554W associates with a “partially aggregated” form of aSyn, with enhanced association occurring over time. We also report the ability of 4554W to undergo modification through deamidation of the central asparagine residue, occurring on the same timescale as aSyn aggregation in vitro, with peptide modification enhancing its association with aSyn. Additionally, we report that 4554W can act to reduce fibril formation of five Parkinson’s disease associated aSyn mutants. Inhibitory peptide binding to partially aggregated forms of aSyn, as identified here, is particularly attractive from a therapeutic perspective, as it would eliminate the need to administer the therapy at pre-aggregation stages, which are difficult to diagnose. Taken together the data suggest that 4554W could be a suitable candidate for future therapeutic development against wild-type, and most mutant aSyn aggregation.
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- 2020
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127. Pathophysiology of matrix metalloproteinases in breast cancer progression
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Sudheer Kumar Katari, Chiranjeevi Pasala, Ravina Madhulitha Nalamolu, Umakanth Naik Vankadoth, Sharon Priya Alexander, Siva Ranjani Pakala, Aparna R Bitla, and Amineni Umamaheswari
- Subjects
angiogenesis ,breast cancer ,extracellular matrix ,invasion ,matrix metalloproteinases ,metastasis ,Medicine - Abstract
Matrix metalloproteinases (MMPs) are secretary or membrane type proteolytic enzymes that act on extracellular matrix protein components such as collagens, gelatins, elastins, laminins, fibronectins, and integrins. MMPs are synthesized as zymogens and are activated to functional forms on autoproteolysis or by other proteases. Naturally, the activity of MMPs was regulated by specific tissue inhibitors of metalloproteinases and transcriptionally regulated by miRNAs. MMPs have an important role in tissue remodeling by regulating cell death, morphogenesis, and wound healing activity. Overexpression of MMPs leads to various pathologies predominantly cancer, cardiovascular, and neurological diseases. Impact of MMPs on breast cancer progressions such as proliferation, angiogenesis, invasion, and metastasis are focused in this review.
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- 2019
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128. Adenosine 5′-triphosphate measurements in soils containing recently added glucose
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De Nobili, M., primary, Diaz-Raviña, M., additional, Brookes, P.C., additional, and Jenkinson, D.S., additional
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- 1996
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129. Thymidine and leucine incorporation into bacteria from soils experimentally contaminated with heavy metals
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Díaz-Raviña, M., primary and Bååth, E., additional
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- 1996
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130. Thymidine, leucine and acetate incorporation into soil bacterial assemblages at different temperatures
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Díaz-Raviña, M, primary
- Published
- 1994
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131. Physical and chemical characterization of four composted urban refuses
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Villar, M.C., primary, Beloso, M.C., additional, Acea, M.J., additional, Cabaneiro, A., additional, González-Prieto, S.J., additional, Carballas, M., additional, Díaz-Raviña, M., additional, and Carballas, T., additional
- Published
- 1993
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132. Microbial biomass and its contribution to nutrient concentrations in forest soils
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Díaz-Raviña, M., primary, Acea, M.J., additional, and Carballas, T., additional
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- 1993
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133. Microbial biomass and C and N mineralization in forest soils
- Author
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Díaz-Raviña, M., primary, Acea, M.J., additional, and Carballas, T., additional
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- 1993
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134. Fumigation-extraction method to estimate microbial biomass in heated soils
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Diaz-Raviña, M., primary, Prieto, A., additional, Acea, M.J., additional, and Carballas, T., additional
- Published
- 1992
- Full Text
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135. Short- and medium-term evolution of soil properties in Atlantic forest ecosystems affected by wildfires.
- Author
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Martín, A., Díaz-Raviña, M., and Carballas, T.
- Subjects
WILDFIRES ,SOILS ,HUMIDITY ,HUMUS - Abstract
ABSTRACT The immediate effect of low and high severity wildfires on the main soil properties, as well as their short- and medium-term evolution under field conditions, was examined. The study was performed with three pine forest soils (two Leptosols and one Humic Cambisol, developed over granite and basic schist, respectively), located in the Atlantic humid temperate zone (Galicia, NW Spain). Samples were collected from the A-horizon (0-5 cm depth) of the burnt and the corresponding unburnt soils, immediately and 3, 6 and 12 months after the wildfires. Most properties analysed exhibit immediate fire-induced changes and different evolution depending on fire severity and soil type. In general, immediately after the fire pH and soil properties related to nutrients availability increased and cation exchange capacity decreased, whereas properties related to soil organic matter content (C, N, Fe and Al oxides) had a variable effect depending mainly on the soil studied; all these modifications were accentuated by fire severity. These effects were attenuated in the short term in the soil affected by a low severity wildfire, but they lasted for at least 1 year in the soils affected by high severity wildfires, particularly in the Leptosols. The results showed the importance of the fire as a disturbance agent in the dynamic of nutrients and soil organic matter that is directly related with soil quality in the Galician forest ecosystems. Copyright © 2011 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
136. Dynamics of physicochemical and biological parameters during the co-composting of chestnut burr/leaf litter with solid poultry manure
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Guerra-Rodríguez, E., Vázquez, M., and Diaz-Raviña, M.
- Abstract
Dynamic parameters of the transformation of chestnut burr/leaf litter with solid poultry manure (ratio 1:3) into a fertiliser using a co-composting process are reported in this work. Determinations of temperature, granulometric composition, pH, electrical conductivity, organic matter content, nitrogen content and available potassium and phosphorus as well as biological germination tests on ryegrass (Lolium perenne), barley (Hordeum vulgare) and wheat (Triticum aestivum) seeds were performed. The loss of organic matter was only 6.27% (w/w dry weight) and the available potassium changed from 2820 to 3265 mg kg-1 in the co-compost studied. Germination tests showed that the co-compost was mature in 103 days.© 2001 Society of Chemical Industry
- Published
- 2001
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137. Anales de Edafología y Agrobiología Tomo 45 Número 5-6
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Aguilar, J., Rodríguez Rebollo, T., Simón, M., González Pradas, E., Villafranca Sánchez, M., Rey Bueno, F. del, Moreno Caselles, J., Estañ, María T., Romero, M., Santa Cruz, F., García-Rodeja Gayoso, E., Rodríguez Sanchidrián, J., Cala Rivero, V., Mogollón, T., Flores, M., Cazorla, M., Olmedo Pujol, J. de, Espejo Serrano, R., Jiménez Ballesta, R., Guerra, A., Moreno Sánchez, J. I., Hernández, M. T., Costa, F., Acea, M. J., Díaz Raviña, M., Carballas, T., Sarro, M. J., Cadahía, Carlos, Peñalosa, J., Melendreras, F. A., Ortuño, A., Guzmán, M., Morena Valenzuela, I. de la, Ramos, J. M., García del Moral, L. F., Laencina, J., Torralba Redondo, B., Villar Moreno, A. L., and García García, J. E.
- Abstract
l. Suelos– Física. Mecanismos de iluviación de arcilla en materiales calcáreos. Por J. Aguilar Ruiz, T. Rodríguez Rebollo y M. Simón Torres.-- l. Suelos-Química. Estudio cinético de la hidrólisis del parathión en extractos acuosos de un suelo alcalino típico de Almería. Por E. González Pradas, M. Villafranca Sánchez y F. del Rey Bueno.-- Determinación de Ca y Fe totales en suelos calizos por espectrometría de fluorescencia de rayos X. Por J. Moreno Caselles, M. T. Estañ Campello, M. Romero Conejero y F. Santacruz Carreño.-- Comparación de dos métodos de disolución alcalina para el estudio de los componentes no cristilinos del suelo. Por E. García-Rodeja Gavoso.-- Distribución de Pb, Cd, Cu y Cr entre distintas fases sólidas en algunos tipos de suelo. Por R. Cruz Cañadas, J. Rodríguez Sanchidrián y V. Cala Rivero.-- l. Suelos-Biología. Determinación del crecimiento de Rhizobium leguminosarum biovar trifolii bajo la acción del herbicida Amitrol. Por T. Mogollón, M. Flores y M. Cazorla.--l. Suelos-Génesis, clasificación y cartografía - Suelos desarrollados sobre sedimentos calizos no consolidados en el Valle del Guadalquivir. I: Descripción del medio y de los suelos de la zona. Por J. L. de Olmedo Pujol - Procesos edafogenésicos y edad de las formaciones tipo raña relacionadas con las estribaciones meridionales de los Montes de Toledo. Por R. Espejo Serrano.-- Contribución a la evaluación edáfica de suelos mediante el estudio del comportamiento de diversos metales pesados. Por V. Cala Rivera, R. Jiménez Ballesta, J. Rodríguez Sanchidrián y A. Guerra Delgado.-- l. Suelos-Fertilidad. Caracterización y fluctuación de parámetros fisicos y fisico-químicos en lodos de depuradoras. Por J. l. Moreno Sánchez, M. T. Hernández Fernández y F. Costa Yagüe.-- Caracterización y fluctuación del carbono y nitrógeno de lodos de depuradoras. Por M. T. Hernández Fernández, J.I. Moreno Sánchez y F. Costa Yagüe.-- Evolución de la microflora total y de los microorganismos nitrificantes de un suelo abonado con purín de vacuno, en un período de 33 meses. Por M. J. Acea, M. Díaz Raviña y T. Carballas.-- II. Biología Vegetal-Nutrición.-- Control de un cultivo hidropónico de tomate mediante correcciones periódicas de los nutrientes. Aplicaciones a invernaderos comerciales. Por M. J. Sarro Casillas, C. Cadahia López y J. M. Peñalosa Olivares.-- II. Biología Vegetal-- Fisiología.Evolución de características físicas en frutos de limonero Vema. Por F. A. Melendreras, A. Ortuño y G. Guzmán -- Análisis del crecimiento y de la producción de grano en cultivos de cebada (Hordeum distichon L. var Pallas) bajo las condiciones ambientales de la provincia de Granada. l. Acción del nitrógeno radical y del azufre y ethrel foliar sobre la cosecha y sus componentes. Por I. de la Morena, J. M. Ramos y L. F. García del Moral.-- Análisis del crecimiento y de la producción de grano en cultivos de cebada (Hordeum distichon L. var Pallas) bajo las condiciones ambientales de la provincia de Granada. 11. Evolución y supervivencia de los tallos hijos. Por I. de la Morena, J. M. Ramos y L. F. García del Moral.-- Contenido de aceite esencial durante el crecimiento y desarrollo de frutos de limonero Vema. Por F. A. Melendreras, J. Laencina, A. Ortuño y G. Guzmán.-- II. Biología Vegetal-Agrobiología.-- Acción del herbicida atrazina sobre el crecimiento y la nodulación de dos estirpes de Rhizobium. Por B. Torralba Redondo, M. Flores Rodríguez y A. L. Villar Moreno.-- Cultivo del almendro en zonas semiáridas del sureste español. Por J. E. García García .-- III. Comunicaciones cortas.-- III. Bibliografía Peer reviewed 2019-08.- CopyBook.- Libnova.- Biblioteca ICA
- Published
- 1986
138. Microbial community-based measurements to estimate heavy metal effects in soil: The use of phospholipid fatty acid patterns and bacterial community tolerance
- Author
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Bååth, E., Åsa Frostegård, Díaz-Raviña, M., and Tunlid, A.
139. Field data of microbial response to a fire retardant
- Author
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Basanta, M. R., Díaz-Raviña, M., Cuiñas, P., and TARSY Carballas
- Abstract
A field experiment was carried out in order to examine the influence of a synthetic polymer used as a fire retardant on microbial biomass and activity in a soil located in Galicia (NW Spain). Measurements (biomass C, FDA hydrolysis, β-glucosidase and urease) were made immediately (0) and after 1 and 6 months of the prescribed fires. In addition, a soil incubation experiment was performed with samples collected immediately after the application of the fire retardant and microbial indices were determined at different time intervals (3, 6, 9 and 12 weeks). Results of laboratory assay were congruent with field data indicating that the addition of the fire retardant to soil did not change significantly the microbial parameters analysed. Based on these results, it appears that this synthetic polymer can be used in fire control since it does not appear to have a negative influence on soil microbial population.
140. Microbial biomass and metabolic activity in four acid soils
- Author
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Diaz-Raviña, M., primary, Carballas, T., additional, and Acea, M.J., additional
- Published
- 1988
- Full Text
- View/download PDF
141. Microbiological characterization of four composted urban refuses
- Author
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Diaz-Raviña, M., primary, Acea, M.J., additional, and Carballas, T., additional
- Published
- 1989
- Full Text
- View/download PDF
142. Soil enzymatic activities and microbial community structure in soils polluted with tetracycline antibiotics
- Author
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Manuel Arias-Estévez, Elena García-Campos, Montserrat Díaz-Raviña, A. Martín, Vanesa Santás-Miguel, Avelino Núñez-Delgado, Esperanza Álvarez-Rodríguez, David Fernández-Calviño, Ana Barreiro, Ministerio de Economía y Competitividad (España), Xunta de Galicia, Ministerio de Educación (España), Ministerio de Economía, Industria y Competitividad (España), Díaz-Raviña, M. [0000-0002-9310-3468], and Díaz-Raviña, M.
- Subjects
Soil test ,medicine.drug_class ,Tetracycline antibiotics ,Oxytetracycline ,Soil enzymes ,3308 Ingeniería y Tecnología del Medio Ambiente ,PLFAs ,010501 environmental sciences ,Veterinary antibiotics contamination ,01 natural sciences ,complex mixtures ,2511.04 Química de Suelos ,medicine ,Agricultural soils ,Organic matter ,Food science ,chlortetracycline ,neoplasms ,0105 earth and related environmental sciences ,chemistry.chemical_classification ,Phosphomonoesterase ,Agriculture ,04 agricultural and veterinary sciences ,Soil type ,chemistry ,Microbial population biology ,veterinary antibiotics contamination ,Soil water ,040103 agronomy & agriculture ,3209 Farmacología ,0401 agriculture, forestry, and fisheries ,agricultural soils ,oxytetracycline ,soil enzymes ,Agronomy and Crop Science ,medicine.drug ,Chlortetracycline - Abstract
A laboratory experiment was performed to examine the medium-term influence of three tetracycline antibiotics (chlortetracycline, CTC; tetracycline, TC and oxytetracycline, OTC) at different concentrations in four agricultural soils with similar pH and different soil organic content. After a 42-days incubation period, three different soil enzymes ( -glucosidase, urease, and phosphomonoesterase) were estimated, as well as the phospholipid fatty acids (PLFAs). A residual effect was observed on all microbial parameters measured in the four soils affecting to the soil enzymes activity and soil microbial communities structure (PLFA pattern). A different microbial sensitivity to antibiotics was detected depending on both, soil type and the microbial property considered. Specifically, in general, no antibiotic effect or even a slight positive effect was observed for phosphomonoesterase and -glucosidase enzyme activities, respectively, while a negative effect was detected for urease activity values, particularly at higher doses of the antibiotics in a soil with a low organic matter content. The principal component analysis performed with the PLFAs data obtained for all soil samples showed different microbial communities depending mainly on soil type, followed by the antibiotic added to the soil (CTC, TC or OTC) and, in a lesser extent, by its concentration. In general, the PLFA patterns showed similar microbial communities structure due to OTC and TC addition in comparison to the microbial communities structure of soil treated with CTC. These results could be environmentally relevant, especially as regards potential effects of antibiotics on the soil microbiome and hence on health risk assessment of these antibiotics in soils., This study was funded by the Spanish Ministry of Economy and Competitiveness through the projects CGL2015-67333-C2-1-R and -2-R (FEDER Funds). The research group was also funded by Xunta de Galicia via the BV1 research group (ED431C 2017/62-GRC). David Fernández Calviño holds a Ramón y Cajal contract (RYC-2016-20411), financed by the Spanish Ministry of Economy, Industry, and Competitiveness. Vanesa Santás Miguel holds a predoctoral fellowship (ED481A-2020/089) financed by the Ministry of Education, University, and Professional Training of Xunta de Galicia.
- Published
- 2021
143. Effects of incubation and chloroform fumigation on the nutrient contents of some acid soils
- Author
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Diaz-Raviña, M., Acea, M.J., and Carballas, T.
- Published
- 1989
- Full Text
- View/download PDF
144. Key factors controlling microbial community responses after a fire: Importance of severity and recurrence.
- Author
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Lombao, A., Barreiro, A., Fontúrbel, M.T., Martín, A., Carballas, T., and Díaz-Raviña, M.
- Abstract
Wildfires are a major problem in Mediterranean forest ecosystems, affecting the same area year after year. Their severity is increasing, partly due to climate change and hence, every now and then, virulent fires of high severity spread ravage this region. The aim of this study was to evaluate the influence of fire regime (recurrence, severity) in soil microbial community structure analyzing the phospholipid fatty acid (PLFA) and the microbial functional diversity assessing the level physiological profiling technique (CLPP). Samples of a soil affected by a high severities wildfire and a soil affected by a low severity experimental fire were heated under laboratory conditions at different temperatures to simulate different fire severity. To simulate fire recurrence, the heating treatment was repeated after one month of incubation. The fire severity was estimated as the amount of heat supplied to samples by degree-hour methodology. A marked impact of fire regime on soil microorganisms was detected; the microbial community response varied depending on previous history of fire and the magnitude of changes in PLFA pattern and CLPP, was related to the amount of heat supplied to the samples. Wildfires had a greater impact on microbial community structure than subsequent soil heating in the laboratory. The total biomass and the biomass of specific groups of microorganisms decreased notably as a consequence of wildfire and minor changes were detected due to the experimental fire and soil heating under laboratory conditions. The results clearly showed the usefulness of PLFA pattern to study the effect of fire regimes and associated direct and indirect changes in soil microorganisms and in soil quality. The data also indicated that the degree-hour methodology rather than maximum temperature is adequate to simulate fire severity and evaluate the impact of thermal shock on soil ecosystems. Unlabelled Image • Fire regime impact on forest soils was examined in a complex soil heating experiment. • Microbial composition was analyzed by CLPP and PLFA methods in heated soil samples. • Fire regimen (severity, occurrence) provoked marked changes in microbial composition. • A close relationship was observed between PLFA data and degree-hours (fire severity). • The degree-hours rather than maximum temperature were more adequate to evaluate the fire impacts. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
145. Use of biomass ash to reduce toxicity affecting soil bacterial community growth due to tetracycline antibiotics.
- Author
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Santás-Miguel, V., Fernández-Sanjurjo, M.J., Núñez-Delgado, A., Álvarez-Rodríguez, E., Díaz-Raviña, M., Arias-Estévez, M., and Fernández-Calviño, D.
- Subjects
- *
TETRACYCLINES , *BACTERIAL communities , *BACTERIAL growth , *ANTIBIOTICS , *ANDOSOLS , *SOIL amendments - Abstract
Tetracycline antibiotics (TA) used in veterinary medicine reach terrestrial ecosystems mostly via the repeated applications of animal manures and slurries on agricultural soils, where they may cause toxic effects on bacterial communities. In the current work, we studied the efficacy of adding doses of 0, 6, 24 and 48 g kg−1 of biomass ash (BA) to four different soils to reduce potential negative effects of tetracycline antibiotics. Specifically, soil samples were polluted with different concentrations of tetracycline, oxytetracycline or chlortetracycline, and the bacterial community growth was estimated using the 3H leucine incorporation technique. Soil amendment with BA increased soil pH (1.3–4.8 units), total carbon (0.7–5.8 g kg−1) and Fe and Al oxides concentrations (0.25–3.98 g kg−1), as well as bacterial activity (1–9 times compared to the control). In addition, BA amendment at high doses (24 or 48 g kg−1) resulted in a similar toxicity decrease for the three antibiotics, but with variations among soils. The reductions in antibiotics toxicity were very variable, ranging between 5% and 100% (total recovery). In view of that, the spreading of BA could be interesting as management practice to reduce risks of soil pollution and subsequent toxicity on bacterial communities due to tetracycline antibiotics. • Biomass ash amendment increased pH, carbon and Al and Fe oxides levels in soils. • The addition of biomass ash to soils caused increases in bacterial community growth. • Biomass ash reduced tetracycline antibiotics toxicity on soil bacterial communities. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
146. Formação em Ciência do Solo nos ensinos básico e secundário em Portugal
- Author
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Alexandre, C., Ferreira, C., Andrade, J.A., Fonseca, F., Bonito, J., Macias, F., Díaz-Raviña, M., and Barral, M.T
- Abstract
Tendo como um dos seus fins “a difusão da Ciência do Solo”, a Sociedade Portuguesa da Ciência do Solo (SPCS) tem tido muito maior envolvimento na promoção das Ciências do Solo (CS) no ensino superior do que no ensino básico e secundário e na divulgação. Procurando avaliar a necessidade de corrigir esta situação e as possíveis formas de a materializar, no contexto das limitações da SPCS, apresenta-se um breve ponto de situação das CS no ensino básico e secundário em Portugal e do envolvimento de outras sociedades científicas da CS na divulgação e no ensino pré-universitário.
- Published
- 2014
147. Solo e diferenciação do vinho à escala da exploração no sul de Portugal
- Author
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Alexandre, C, Baptista, P, Silva, LL, Marques da Silva, JR, Macías, F, Diaz-Raviña, M, and Barral, MT
- Subjects
NDVI ,vinho ,condutividade elétrica ,solo - Abstract
Tendo em vista a avaliação da variabilidade espacial da produção e da qualidade do vinho à escala da parcela, apresentam-se resultados preliminares de um estudo em curso no Alentejo. Observou-se uma correlação positiva entre a condutividade eléctrica aparente (ECa) do solo e a presença de solos com maior espessura de horizontes de textura fina, alguns desde a superfície e com argilas de maior CTC. Estes solos têm uma representação crescente nos talhões (T): 5, 2D, 10 e 12. Em 2012, esta sequência (excluindo T10) também correspondeu ao decréscimo do NDVI e da produção de uva e ao aumento da nota de prova do vinho.
- Published
- 2014
148. Acetamiprid retention in agricultural acid soils: Experimental data and prediction.
- Author
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Lalín-Pousa V, Conde-Cid M, Díaz-Raviña M, Arias-Estévez M, and Fernández-Calviño D
- Abstract
The overuse of pesticides in agriculture has led to widespread pollution of soils and water resources, becoming a problem of great concern. Nowadays, special attention is given to neonicotinoids, particularly acetamiprid, the only neonicotinoid insecticide allowed for outdoor use in the European Union. Once acetamiprid reaches the soil, adsorption/desorption is the main process determining its bioavailability and environmental fate. Therefore, in this work, the adsorption/desorption behaviour of acetamiprid in 60 agricultural soils was studied. The results indicate that acetamiprid has a low affinity for soil constituents, with values ranging from 0.2 to 4.28 L kg
-1 for Kd(ads). At the same time, acetamiprid shows high desorption levels (up to 96.3%), indicating that it is poorly retained in soils, thus presenting high bioavailability and a potential risk for transport to other environmental compartments. Regarding the influence of soil properties on the adsorption/desorption process, soils with a high content of organic matter, clay, and exchangeable basic cations showed higher retention of acetamiprid, with greater adsorption and lower desorption. Finally, robust and universal models were successfully developed to predict the adsorption and desorption behaviour of acetamiprid in soil., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2025 Elsevier Inc. All rights reserved.)- Published
- 2025
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149. Influence of soil type on bacterial growth and tolerance to experimentally added human antibiotics.
- Author
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Rodríguez-González L, Díaz-Raviña M, Sevilla-Morán B, García-Campos E, Villaverde JJ, Arias-Estévez M, Fernández-Calviño D, and Santás-Miguel V
- Abstract
The human antibiotics cefuroxime (CXM) and azithromycin (AZI) are among the most commonly prescribed. A significant portion of both are excreted and has been detected in sewage treatment plant effluents. The increasing use of such effluents in crops for irrigation and as fertilisers poses a threat to soil microbiota because of the presence of antibiotics. The lack of studies on CXM and AZI in soils hinders our understanding of their potential toxic effects on soil bacterial communities and ecosystem services. This study significantly contributes to the literature by quantifying the toxicity of CXM and AZI at varying concentrations in 12 different crop soils and tracking their evolution over time. The study also examined whether antibiotic pressure led to the development of more tolerant bacterial communities. The results of this study are the values of the logarithm of the antibiotic concentration at which 50 % of bacterial growth is inhibited (Log IC
50 ) and indicate that both antibiotics are toxic to soil bacteria. The direct toxicity of CXM (1 day after contamination) was higher (Log IC50 : 0.9 = 7.9 mg kg-1 ) than that of AZI (Log IC50 : 3.4 = 2362 mg kg-1 ). However, bacterial growth was less affected by CXM over time, whereas AZI remained toxic in some soils until day 42 (Log IC50 : 3.2 = 1533 mg kg-1 and 3.4 = 2291 mg kg-1 , respectively). The overall results indicate that selective pressure exerted by antibiotics generates antibiotic tolerance in soils, even at the lowest antibiotic concentration studied (7.8 mg kg-1 ). The general trend was to increase tolerance to higher antibiotic concentrations up to the highest concentration studied (2000 mg kg-1 ). However, the degree of tolerance developed was highly dependent on soil type. More studies should be conducted to quantitatively assess the toxic and tolerance-developing effects of antibiotics in soils. Such information will be valuable for identifying which antibiotics pose a threat to the soil microbiota and consequently to human health., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
- Full Text
- View/download PDF
150. Burn severity and land-use legacy influence bird abundance in the Atlantic-Mediterranean biogeographic transition.
- Author
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García-Redondo C, Fernández-Moure P, Cánibe M, Tapia L, Gil-Carrera A, Lombao A, Díaz-Raviña M, and Regos A
- Subjects
- Animals, Forests, Birds physiology, Ecosystem, Fires, Wildfires, Burns
- Abstract
Fire regimes in mountain landscapes of southern Europe have been shifting from their baselines due to rural abandonment and fire exclusion policies. Understanding the effects of fire on biodiversity is paramount to implement adequate management. Herein, we evaluated the relative role of burn severity and heterogeneity on bird abundance in an abandoned mountain range located in the biogeographic transition between the Eurosiberian and Mediterranean region (the Natural Park 'Baixa Limia-Serra do Xurés'). We surveyed the bird community in 206 census plots distributed across the Natural Park, both inside and outside areas affected by wildfires over the last 11 years (from 2010 to 2020). We used satellite images of Sentinel 2 and Landsat missions to quantify the burn severity and heterogeneity of each fire within each surveyed plot. We also accounted for the past land use (forestry or agropastoral use) by using a land cover information for year 2010 derived from satellite image classification. We recorded 1735 contacts from 28 bird species. Our models, fitted by using GLMs with Poisson error distribution (pseudo-R
2 -average of 0.22 ± 0.13), showed that up to 71% of the modeled species were linearly correlated with at least one attribute of the fire regime. The spatiotemporal variation in burnt area and severity were relevant factors for explaining the local abundance of our target species (39% of the species; Akaike weights >0.75). We also found a quadratic effect of at least one fire regime attribute on bird abundance for 60% of the modeled species. The past land use, and its legacy after 10 years, was critical to understand the role of fire (Akaike weights >0.75). Our findings confirm the importance of incorporating remotely sensed indicators of burn severity into the toolkit of decision makers to accurately anticipate the response of birds to fire management., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)- Published
- 2023
- Full Text
- View/download PDF
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