Artículo
Isolation and Characterization of Plant Growth-Promotion Diazotrophic Endophytic Bacteria Associated to Sugarcane (Saccharum officinarum L.) Grown in Paraíba, Brazil
Autor/es | Antunes, Jadson Emanuel Lopes
de Freitas, Ana Dolores Santiago Bonifacio, Aurenivia de Souza Oliveira, Louise Melo de Rosália e Silva Santos, Carolina Etienne do Carmo Catanho Pereira de Lyra, Maria de Paula Oliveira, José Ollero Márquez, Francisco Javier de Araújo, Ademir Sérgio Ferreira do Vale Barreto Figueiredo, Marcia |
Departamento | Universidad de Sevilla. Departamento de Microbiología |
Fecha de publicación | 2022 |
Fecha de depósito | 2022-09-22 |
Publicado en |
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Resumen | Sugarcane is an important Brazilian commodity, being usually cultivated in soils with low natural fertility. This study aimed to isolate diazotrophic endophytes from sugarcane tissues and evaluate the morphological and ... Sugarcane is an important Brazilian commodity, being usually cultivated in soils with low natural fertility. This study aimed to isolate diazotrophic endophytes from sugarcane tissues and evaluate the morphological and physiological characteristics of their colonies as well as their plant growth-promoting (PGP) traits in select diazotrophic endophytic bacteria. Fifty-six bacterial isolates were identified in the sugarcane tissues, and these isolates presented distinct morphological and physiological traits. A total of thirty-five bacterial isolates were biochemically evaluated. Overall, Bacillus was the dominant genus. Isolates of Methylobacterium spp. and Brevibacillus agri were present only in leaves, while Herbaspirillum seropedicae occurred only in stems. Except to IPA-CF45A, all isolates were nitrogenase positive. All endophytes exhibit production of indol 3-acetic acid. Over 50% of endophytes solubilize phosphate, release N-acyl homoserine lactones, and present the activity of 1-aminocyclopropane-1-carboxylic acid deaminase, catalase, lipase and protease. The network analysis showed that isolates belonged to Burkholderia, Herbaspirillum, and Methylobacterium interact with Bacillus. Bacterial endophytes exhibited distinct morphological, physiological, and PGP traits that are useful for sustainable agriculture, highlighting the isolates IPA-CC33, IPA-CF65, IPA-CC9 and IPA-CF27. Further studies on the effects of these diazotrophic endophytes and their potential for providing microbial inoculants for improving sugarcane fields will provide valuable information to maintain the sustainability and environment quality. |
Agencias financiadoras | National Council for Scientific and Technological Development. Brazil |
Identificador del proyecto | 426655/2018-4 |
Cita | Antunes, J.E.L., de Freitas, A.D.S., Bonifacio, A., de Souza Oliveira, L.M., de Rosália e Silva Santos, C.E., do Carmo Catanho Pereira de Lyra, M.,...,do Vale Barreto Figueiredo, M. (2022). Isolation and Characterization of Plant Growth-Promotion Diazotrophic Endophytic Bacteria Associated to Sugarcane (Saccharum officinarum L.) Grown in Paraíba, Brazil. Brazilian Archives of Biology and Technology, 65, e22200439. |
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Isolation and Characterization.pdf | 1.975Mb | [PDF] | Ver/ | |