Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/38224
metadata.artigo.dc.title: Diazotrophic bacteria associated with sisal (Agave sisalana Perrine ex Engelm): potential for plant growth promotion
metadata.artigo.dc.creator: Santos, Adailson Feitoza de Jesus
Martins, Carolina Yamamoto Santos
Santos, Patrícia Oliveira
Corrêa, Élida Barbosa
Barbosa, Heloiza Ramos
Sandoval, Andrea Paola Suarez
Oliveira, Lenaldo Muniz
Souza, Jorge Teodoro de
Soares, Ana Cristina Fermino
metadata.artigo.dc.subject: Agave
Nitrogen-fixing bacteria
BOX-A1R
Cucumis sativus
metadata.artigo.dc.publisher: Springer
metadata.artigo.dc.date.issued: 2014
metadata.artigo.dc.identifier.citation: SANTOS, A. F. de J. et al. Diazotrophic bacteria associated with sisal (Agave sisalana Perrine ex Engelm): potential for plant growth promotion. Plant and Soil, [S.l.], v. 385, p. 37-48, 2014.
metadata.artigo.dc.description.abstract: Aims In the semi-arid region of Bahia State, Brazil, sisal (Agave sisalana Perrine ex Engelm) has been cultivated for fibre production for several decades without the use of chemical fertilizers. The contribution of biological nitrogen fixation (BNF) to this crop and the occurrence of diazotrophic rhizosphere, epiphytic or endophytic bacteria have not been investigated. The aims of this work were to study the occurrence and diversity of diazotrophic bacteria in rhizosphere soil, root and leaf tissues of sisal plants from this region, as well as to test their potential for plant growth promotion. Methods Burk’s nitrogen free semi-solid medium was used for isolation and the MPN method was used for quantification of diazotrophic bacteria. BOX-A1R PCR and 16S rRNA sequence analyses were performed to study the diversity of bacterial isolates harboring the nifH-gene. Six isolates were selected for growth promotion of cucumber plants. Results A high diversity of BNF bacterial isolates was observed in sisal plants and rhizosphere soil. Bacterial populations were higher in roots, followed by soil and sisal leaves. Burkholderia, Leifsonia and Paenibacillus were the predominant genera. All isolates tested were able to promote cucumber growth. Conclusions This study showed that sisal-associated diazotrophic bacteria are diverse and may be further exploited to promote plant growth.
metadata.artigo.dc.identifier.uri: https://link.springer.com/article/10.1007/s11104-014-2202-x
http://repositorio.ufla.br/jspui/handle/1/38224
metadata.artigo.dc.language: en_US
Appears in Collections:DFP - Artigos publicados em periódicos

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