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| Aguilar-Barragan,Alejandra; García-Torres,Ana Elisa; Odriozola-Casas,Olga; Macedo-Raygoza,Gloria; Ogura,Tetsuya; Manzo-Sánchez,Gilberto; James,Andrew C.; Islas-Flores,Ignacio; Beltrán-García,Miguel J.. |
| The chemical management of the black leaf streak disease in banana caused by Mycosphaerella fijiensis (Morelet) requires numerous applications of fungicides per year. However this has led to fungicide resistance in the field. The present study evaluated the activities of six fungicides against the mycelial growth by determination of EC50 values of strains collected from fields with different fungicide management programs: Rustic management (RM) without applications and Intensive management (IM) more than 25 fungicide application/year. Results showed a decreased sensitivity to all fungicides in isolates collected from IM. Means of EC50 values in mg L-1 for RM and IM were: 13.25 ± 18.24 and 51.58 ± 46.14 for azoxystrobin, 81.40 ± 56.50 and 1.8575 ± 2.11 for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Banana; Fungicides; Mycosphaerella fijiensis; Sensitivity; Sigatoka. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100051 |
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| Martínez-Rodríguez,Julia del C.; Mora-Amutio,Marcela De la; Plascencia-Correa,Luis A.; Audelo-Regalado,Esmeralda; Guardado,Francisco R.; Hernández-Sánchez,Elías; Peña-Ramírez,Yuri J.; Escalante,Adelfo; Beltrán-García,Miguel J.; Ogura,Tetsuya. |
| Agave tequilana Weber var. 'Azul' is grown for the production of tequila, inulin and syrup. Diverse bacteria inhabit plant tissues and play a crucial role for plant health and growth. In this study culturable endophytic bacteria were extracted from leaf bases of 100 healthy Agave tequilana plants. In plant tissue bacteria occurred at mean population densities of 3 million CFU/g of fresh plant tissue. Three hundred endophytic strains were isolated and 16s rDNA sequences grouped the bacteria into eight different taxa that shared high homology with other known sequences. Bacterial endophytes were identified as Acinectobacter sp., A. baumanii, A. bereziniae, Cronobacter sakazakii, Enterobacter hormaechei, Bacillus sp. Klebsiella oxytoca, Pseudomonas sp.,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agave tequilana; Endophytic; Fusarium oxysporum; Pathogen inhibition. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400025 |
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