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No. de sistema: 000006610

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245 0 0 a| Cultivable endophytic bacteria from leaf bases of agave tequilana and their role as plant growth promoters
520 1 _ a| 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., Enterococcus casseliflavus, Leuconostoc mesenteroides subsp. mesenteroides and Gluconobacter oxydans. Isolates were confirmed to be plant growth promoting bacteria (PGPB) by their capacities for nitrogen fixation, auxin production, phosphate solubilization, or antagonism against Fusarium oxysporum AC132. E. casseliflavus JM47 and K. oxytoca JM26 secreted the highest concentrations of IAA. The endophyte Acinectobacter sp. JM58 exhibited the maximum values for nitrogen fixation and phosphate solubilization index (PSI). Inhibition of fungi was found in Pseudomonas sp. JM9p and K. oxytoca JM26. Bacterial endophytes show promise for use as bio-inoculants for agave cultivation. Use of endophytes to enhance cultivation of agave may be particularly important for plants produced by micropropagation techniques, where native endophytes may have been lost.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Agave tequilana
650 _ 4 a| Hongos endófitos
650 _ 4 a| Fusarium oxysporum
650 _ 4 a| Biofertilizantes
650 _ 4 a| Control biológico de plagas
651 _ 4 a| Las Majadas (Nayarit, México)
700 1 _ a| Martínez Rodríguez, Julia del C.
700 1 _ a| De la Mora Amutio, Marcela
e| coaut.
700 1 _ a| Plascencia Correa, Luis A.
e| coaut.
700 1 _ a| Audelo Regalado, Esmeralda
e| coaut.
700 1 _ a| Guardado, Francisco R.
e| coaut.
700 1 _ a| Hernández Sánchez, Elías
e| coaut.
700 1 _ a| Peña Ramírez, Yuri Jorge Jesús
e| coaut.
700 1 _ a| Escalante, Adolfo
e| coaut.
700 1 _ a| Beltrán García, Miguel J.
e| coaut.
700 1 _ a| Ogura, Tetsuya
e| coaut.
773 0 _
t| Brazilian Journal of Microbiology
g| Vol.45, no. 4 (Oct./Dec. 2014), p. 1333-1339
x| 1517-8382
856 4 1 u| http://www.scielo.br/pdf/bjm/v45n4/25.pdf
z| Artículo electrónico
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Marzo 2015
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
906 _ _ a| Departamento de Ciencias de la Sustentabilidad
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Cultivable endophytic bacteria from leaf bases of agave tequilana and their role as plant growth promoters
Martínez Rodríguez, Julia del C. (autor)
De la Mora Amutio, Marcela (autor)
Plascencia Correa, Luis A. (autor)
Audelo Regalado, Esmeralda (autor)
Guardado, Francisco R. (autor)
Hernández Sánchez, Elías (autor)
Peña Ramírez, Yuri Jorge Jesús (autor)
Escalante, Adolfo (autor)
Beltrán García, Miguel J. (autor)
Ogura, Tetsuya (autor)
Contenido en: Brazilian Journal of Microbiology. Vol.45, no. 4 (Oct./Dec. 2014), p. 1333-1339. ISSN: 1517-8382
No. de sistema: 6610
Tipo: - Artículo con arbitraje
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Inglés

"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., Enterococcus casseliflavus, Leuconostoc mesenteroides subsp. mesenteroides and Gluconobacter oxydans. Isolates were confirmed to be plant growth promoting bacteria (PGPB) by their capacities for nitrogen fixation, auxin production, phosphate solubilization, or antagonism against Fusarium oxysporum AC132. E. casseliflavus JM47 and K. oxytoca JM26 secreted the highest concentrations of IAA. The endophyte Acinectobacter sp. JM58 exhibited the maximum values for nitrogen fixation and phosphate solubilization index (PSI). Inhibition of fungi was found in Pseudomonas sp. JM9p and K. oxytoca JM26. Bacterial endophytes show promise for use as bio-inoculants for agave cultivation. Use of endophytes to enhance cultivation of agave may be particularly important for plants produced by micropropagation techniques, where native endophytes may have been lost."


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