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| Hernández Flores, Benjamín. |
| El tomate es una de las especies vegetales más importantes en el mundo. La producción de este cultivo es considerada como una actividad de alto riesgo debido a su gran susceptibilidad a plagas que limitan su producción. En años recientes, se observaron síntomas de detención general del crecimiento, clorosis, deformación foliar, abscisión de flores y reducción de tamaño y cantidad de frutos, característicos de infección por begomovirus y Candidatus Liberibacter psyllaurous en plantas de tomate cultivadas en invernadero en los estados de Coahuila, Puebla e Hidalgo. Con la finalidad de determinar la presencia de estos patógenos se colectó tejido foliar de plantas de tomate y de malezas que mostraban los síntomas antes descritos. Se realizó la extracción de... |
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Palavras-chave: Mosca blanca; Geminivirus; Malezas; Bactericera cockerelli; Análisis temporal; Whiteflies; Weeds; Temporal analysis; Fitopatología; Doctorado. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1884 |
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| Rocha,Kelly Cristina Gonçales; Marubayashi,Julio Massaharu; Navas-Castillo,Jesús; Yuki,Valdir Atsushi; Wilcken,Carlos Frederico; Pavan,Marcelo Agenor; Krause-Sakate,Renate. |
| Bemisia tabaci (Genn.) is one of the most important pests in cultivated areas of vegetables and ornamental crops around the world. Based on the mitochondrial cytochrome oxidize I (mtCOI) sequence, there is evidence that B. tabaci should be considered a cryptic species complex of 11 groups containing 24 species. Two of the groups, Middle East-Asia Minor 1 and Mediterranean include biotypes B and Q, respectively. In this study we evaluated the mtCOI sequence of B. tabaci populations collected in sites of the state of São Paulo, Brazil. Using PCR-RFLP with Taq I, a typical biotype B profile was obtained for all specimens. Based on the comparison with mtCOI reference sequences we found four haplotypes all belonging to the Middle East-Asia Minor 1. They... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: RFLP; Cytochrome oxidase I gene; Sequencing; Whiteflies. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100018 |
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| Herrera Vásquez,José Angel; Jaén Sanjur,José Natividad; Zachrisson Salamina,Bruno Alexis; Rubio Miguélez,Luis; Barba Alvarado,Anovel Amet; Aguilera Cogley,Vidal Antonio; Valdespino,Randy Atencio; Torregrosa 0,Luis Galipienso; Mejía Franco,Luis Carlos. |
| Abstract The main open-field and greenhouse producer regions of tomato in Panama (Los Santos, Herrera, Veraguas and Chiriquí provinces) were surveyed to determine the occurrence and distribution of Bemisia tabaci and Trialeurodes vaporariorum during the growing seasons of 2017 and 2018. Twenty-two plots were surveyed, and DNA extracts of 112 adult whiteflies were analyzed by multiplex PCR, using a set of specific primers of B. tabaci MEAM1, B. tabaci NW, and T. vaporariorum. DNA extracts corresponding to 57 individual whiteflies (50.9 %) rendered PCR products of expected size with B. tabaci-specific primers (37 belonged to B. tabaci MEAM1 and 20 to B. tabaci NW), whereas the remaining DNA extracts corresponding to 55 individual whiteflies (49.1 %) rendered... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Altitude; PCR; Phylogenetic; Sequencing; Weather conditions; Whiteflies. |
| Ano: 2022 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122022000100096 |
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