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Copyright of Cuadernos del Centro de Estudios de Diseño y Comunicación is the property of Cuadernos del Centro de Estudios de Diseno y Comunicacion 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.)

Copyright of Revista Biológico Agropecuaria Tuxpan is the property of Revista Biologico Agropecuaria Tuxpan 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.)

Copyright of Exploratoris: Revista de la Realidad Global is the property of PDHTech, LLC 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.)

Diversity of naturalized species of the genus Opuntia (Cactaceae) used by the people of Northern Córdoba (Argentina). Agriculture understood as cultivation and domestication of plants constitute a practice orientated by botanical knowledge of different cultures. The study of plant diversity, cultivated and domesticated by a community is useful for understanding the underlying interests around them. In Argentina, particularly in Córdoba, there are few ethnobotanical research works about the relationship established between human groups and Cactaceae. That is why, in this study, an ethnobotanical research was conducted white creole inhabitants in the north of Córdoba. Methodology consisted of open and semistructured interviews, field exploration and herbarium material collection. We identified seven different kinds of “tunas", which have been collected from natural ecosystem and currently undergo domestication process. Six of them belong to the botanical species Opuntia ficus-indica (4 to form ficus-indica: “Amarilla", “Cordobesa", “Italiana" and “Salteña"; and 2 to form amyclaea: “Colorada" and “Blanca"), and the seventh belongs to the botanical species Opuntia robusta (“Cuaresma"). Plant uses declared [ABSTRACT FROM AUTHOR]

In a population of Melocactus nagyi (Cactaceae), in the El Macío Floristic Managed Reserve, Cuba, were conducted an ecological study. Some attributes of the population were studied by transects and a population sampling was performed along the linear 10 km of the population. Each individual was classified as immature or adult, and it was determined which individuals were growing aggregated or solitary in each transect. Among adult individuals were counted those with offshoot, flowers and fruits, and it was counted the number of offshoot, flowers and fruits. To evaluate the spatial distribution pattern of the species was calculated the Morisita Standardized Index (Ip). In transects were located 150 individuals and 730 in the sample. In transects 71,33% of individuals counted were immature and, 64,93% in the sample. The population has an aggregated pattern (Ip=0.50). In transects 34,9% of adult individuals had offshoot (36 total offshoot), 34,9% had flowers (22 flowers) and 23,26% had fruits (21 fruits). The population is relatively large, and has an elevated recruitment rate. However, it is essential to establish monitoring of the population to collect details of space-temporal dynamics, interactions with pollinators and seed dispersers, and to assess the impact of the major threats identified in the area. [ABSTRACT FROM AUTHOR]

El nopal verdura (Opuntia ficus-indica) se introdujo recientemente a Cuautepec de Hinojosa, Hidalgo. En esta región se detectó un virus ocasionando halos cloróticos y manchas irregulares en los cladodios. En infecciones severas los cladodios pierden turgencia en postcosecha, lo cual causa mermas comerciales significativas. El virus se transmitió mecánicamente en seis de 11 plantas indicadoras. En Chenopodium quinoa causó infección sistémica consistente en venas cloróticas y manchas amarillas intervenales. El virus se transmitió en 43 % de los cladodios inoculados induciendo halos cloróticos y manchas cloróticas irregulares a los 7 y 25 días después de la inoculación, respectivamente. El análisis electroforético mostró que el genoma del virus es de ARN de cadena sencilla, mientras que al microscopio electrónico de transmisión se observaron partículas virales en forma de varilla flexible. El diagnóstico por RT-PCR indicó que el virus corresponde a una especie del género Potexvirus. En las unidades de producción evaluadas, el virus causó una incidencia del 47-60 % y severidad del 51-79 %, con distribución espacial en agregados y con fuerte direccionalidad en sentido de los surcos, debido posiblemente al manejo de poda y cosecha. [ABSTRACT FROM AUTHOR]

In this scientific note I analyze two new paradigms in the Cactaceae recruitment and establishment. The first one is related to the facilitation effect given by "nurse objects" (rocks) compared with "nurse plants", which could be enhanced in places where fog deposition and dew formation are highly frequent phenomena. The trophic biology of the rock-colonizing cactus is the second paradigm. Recent studies have discovered and isolated bacteria living into (endophytic) and outside (in the rhizoplane) cactus roots which are responsible for rock weathering and nutrients release. Research on the "hidden" water gains driven by rocks and bacteria isolation and inoculation to cactus seedlings are very important topics in the endemic cactus populations' restoration and recovering plans in arid environments of the Andean western slopes. [ABSTRACT FROM AUTHOR]