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163 results on '"Ochoa-Fuentes, Yisa María"'

3. Potential of Streptomyces avermitilis : A Review on Avermectin Production and Its Biocidal Effect.

Author

Cerna-Chávez, Ernesto, Rodríguez-Rodríguez, José Francisco, García-Conde, Karen Berenice, and Ochoa-Fuentes, Yisa María

Subjects
PEST control, NON-target organisms, ANTIPARASITIC agents, AVERMECTINS, GLUTAMATE receptors
Abstract

Secondary metabolites produced by the fermentation of Streptomyces avermitilis bacterium are powerful antiparasitic agents used in animal health, agriculture and human infection treatments. Avermectin is a macrocyclic lactone with four structural components (A1, A2, B1, B2), each of them containing a major and a minor subcomponent, out of which avermectin B1a is the most effective parasitic control compound. Avermectin B1a produces two homologue avermectins (B1 and B2) that have been used in agriculture as pesticides and antiparasitic agents, since 1985. It has a great affinity with the Cl-channels of the glutamate receptor, allowing the constant flow of Cl- ions into the nerve cells, causing a phenomenon of hyperpolarization causing death by flaccid paralysis. The purpose of this work was to gather information on the production of avermectins and their biocidal effects, with special emphasis on their role in the control of pests and phytopathogenic diseases. The literature showed that S. avermitilis is an important producer of macrocyclic lactones with biocidal properties. In addition, avermectin contributes to the control of ectoparasites and endoparasites in human health care, veterinary medicine and agriculture. Importantly, avermectin is a compound that is harmless to the host (no side effects), non-target organisms and the environment. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Population parameters of Bactericera cockerelli in tomato plants treated with menadione.

Author

Enriquez, Alberto Roque, Beache, Mariana Beltrán, Ochoa Fuentes, Yisa María, and Delgado Ortiz, Juan Carlos

Subjects
PARAMETERS (Statistics), MENADIONE, INSECT development, TOMATOES, PEST control, SODIUM bisulfite, INSECTICIDES
Abstract

Bactericera cockerelli causes damage to nightshade crops in Mexico, causing millions of pesos in losses to producers; for its control, chemical insecticides have been used, which over time has generated resistance in the insect, causing its control to be more difficult year after year. New alternatives are sought for the control of this pest, among which the use of resistance inducers that are effective and environmentally friendly stands out; menadione sodium bisulfite (MSB) is an effective alternative with low environmental impact that has proven to be an activator of plant defenses and has insecticidal effects. In the present work, tests were carried out to determine the effects of MSB on the survival and development of the insect. Cohorts with B. cockerelli eggs were established, using three tomato plants of the Río Grande variety in each of the entomological cages, to test the effect of menadione on the development and survival of the insect B. cockerelli. According to the data obtained, no significant differences were found in the days of development of the immature stages of the insect, while in the survival data the MSB treatments had the highest mortalities, of 42 to 80%, demonstrating that MSB causes the mortality of B. cockerelli nymphs. [ABSTRACT FROM AUTHOR]

Published
2024
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13. Actividad antifúngica in vitro de nanoformulados para el control de Fusarium solani.

Author

Cerna Chávez, Ernesto, Rosario Malacara Herrera, Irasema del, Ochoa Fuentes, Yisa María, Orozco Plancarte, Antonio, Landeros Flores, Jerónimo, and Aguirre Uribe, Luis Alberto

Abstract

Copyright of Revista Mexicana de Ciencias Agrícolas is the property of Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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16. Efecto de antibiosis, antixenosis y la variación natural de tricomas de especies silvestres y comerciales en tomate sobre el desarrollo de Bactericera cockerelli.

Author

Nazareth García-Sánchez, Adela, Cerna Chávez, Ernesto, Beltrán Beache, Mariana, Ochoa Fuentes, Yisa María, and Delgado Ortiz, Juan Carlos

Subjects
PLANT germplasm, TOMATOES, PLANT breeding, INSECT development, GERMPLASM, INSECT behavior
Abstract

Copyright of Scientia Agropecuaria is the property of Scientia Agropecuaria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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25. Detección y cuantificación de plaguicidas en heces de Cynomys mexicanus en colonias de dos estados del norte de México.

Author

Cano García, Arely, Cerna Chávez, Ernesto, Ceballos Ceballos, Augusto Gil, and Ochoa Fuentes, Yisa María

Subjects
PESTICIDE residues in food, PRAIRIE dogs, AGRICULTURE, PRIVATE property, PESTICIDE pollution, REPRODUCTION, PESTICIDES
Abstract

Copyright of Acta Universitaria is the property of Universidad de Guanajuato/Acta Universitaria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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43. Susceptibilidad a plaguicidas de la polilla de las crucíferas (Plutella xylostella L.) (Lepidoptera: Plutellidae) en el centro de México.

Author

Francisco Rodríguez-Rodríguez, José, Cerna-Chávez, Ernesto, Ochoa-Fuentes, Yisa María, Landeros-Flores, Jerónimo, and Patricio Guevara-Acevedo, Luis

Abstract

Copyright of Informacion Tecnica Economica Agraria is the property of Asociacion Interprofesional para el Desarrollo Agrario (AIDA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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44. Efecto inhibitorio de nanotubos de carbono con extactos de Bacillus amyloliquefaciens sobre hongos fitopatógenos.

Author

Orozco-Plancarte, Antonio, Cerna-Chávez, Ernesto, Ochoa-Fuentes, Yisa María, Landeros-Flores, Jerónimo, Jasso-de Rodríguez, Diana, Ernestina Medina-Ramirez, Iliana, and Olalde-Portugal, Víctor

Subjects
PHYTOPATHOGENIC fungi, FUNGAL growth, NANOTUBES, CARBON nanotubes, FUNGI, PHYTOPATHOGENIC bacteria, BACILLUS amyloliquefaciens
Abstract

Copyright of Ecosistemas y Recursos Agropecuarios is the property of Universidad Juarez Autonoma de Tabasco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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47. EVALUACIÓN in vitro DE LA ACTIVIDAD NEMATICIDA DE LIMONENO, ISOTIOCIANATO DE ALILO, EUCALIPTOL, β-CITRONELOL Y AZADIRACTINA SOBRE Meloidogyne incognita (Nematoda, Meloidogynidae)

Author

Alejandro Rojas, Gibran, primary, Ochoa Fuentes, Yisa María, additional, Cerna Chavez, Ernesto, additional, Delgado Ortíz, Juan Carlos, additional, Aguirre Uribe, Luis Alberto, additional, Landeros Flores, Jerónimo, additional, and Cepeda Siller, Melchor, additional

Published
2019
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48. Nematodos asociados al cultivo de berenjena en Cañada Honda, México.

Author

Ríos Valadez, Roberto, Cepeda Siller, Melchor, Cerna Chávez, Ernesto, Ochoa Fuentes, Yisa María, Hernández Pérez, Anselmo, and Tapia Vargas, Luis Mario

Subjects
SOIL nematodes, CROP yields, PLANT nematodes, CROP development, AGRICULTURAL productivity, EGGPLANT
Abstract

Copyright of Revista Mexicana de Ciencias Agrícolas is the property of Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2021

50. Morfometría de inmaduros y tablas de vida de Bactericera cockerelli (Hemiptera: Triozidae) de poblaciones del noreste de México

Author

Cerna Chávez, Ernesto, Hernández Bautista, Omegar, Ochoa Fuentes, Yisa María, Landeros Flores, Jerónimo, Aguirre Uribe, Luis Alberto, Hernández Juárez, Agustín, Montoya Lerma, James, Sociedad Colombiana de Entomología - Socolen, and Universidad del Valle

Subjects
morfometría, solanáceas, life tables, solanaceas, tablas de vida, Paratrioza, morphometry
Abstract

Resumen Se han reportado diferentes parámetros de la biología de Bactericera cockerelli, los cuales están influenciados por el manejo, hospederos y condiciones ambientales en las que se desarrolla. Por lo anterior, el presente estudio tuvo como objetivo determinar los parámetros poblacionales de B. cockerelli de tres poblaciones de campo del noreste de México y una de laboratorio. Para ello se recolectaron especímenes en zonas productoras de San Luis Potosí, Aguascalientes y Coahuila-Nuevo León; posteriormente se establecieron en invernadero y laboratorio para la lectura de datos. Los resultados muestran que la población San Luis Potosí fue la que registró mayor número de oviposturas con una media de 178,5 huevos en el tiempo de evaluación, siendo la más longeva para completar su estadio inmaduro al requerir 31,75 días y por lo tanto es la que mayor tiempo necesita para duplicar la población con una media de 11,07 días; la población Aguascalientes presentó los valores más altos de supervivencia con un 13 % del total de individuos que llegan a la etapa adulta, así como en los parámetros Σm x: 405, R o: 10,53, r m: 0,089 y λ: 1,093; por último, respecto a la fecundidad y el periodo de pre-oviposición no se registraron diferencias significativas entre poblaciones. Con lo anterior, se demuestra que poblaciones expuestas a presión de selección por plaguicidas, cambian sus parámetros poblacionales. Abstract Several parameters have been previously reported for Bactericera cockerelli biology that are influenced by the management, host and environmental conditions in which it develops. Therefore, the present study aimed to determine the population parameters of B. cockerelli from three field populations of northeastern Mexico and one laboratory population. Samples were collected in production areas of San Luis Potosi, Aguascalientes and Coahuila-Nuevo Leon, which were subsequently taken to a greenhouse and laboratory for data reading. The results show that the population from San Luis Potosi was the one that registered the highest number of eggs, with an average of 178.5 eggs at the time of revision, with the longest time required to complete the immature stage being 31.75 days; therefore, the longest time necessary for population doubling was an average of 11.07 days. The Aguascalientes population had the highest survival values, with 13 % of individuals reaching adulthood, as well as the parameters Σm x: 405, R o: 10.53, r m: 0.089 y λ: 1.093. Finally, concerning fertility and pre-oviposition period, no significant differences between populations were recorded. The above demonstrates that populations exposed to selection pressure by pesticides change their population parameters.

Published
2018

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