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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
12/12/2024 |
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Data da última atualização: |
12/12/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TAKAHASHI, W. Y.; GALVÃO, C. W.; CASSÁN, F. D.; URREA-VALENCIA, S,; STREMEL, A. C.; STETS, M. I.; KREMER, M. A. S.; JESUS, E. da C.; ETTO, R. M. |
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Afiliação: |
WILLIAN YUITI TAKAHASHI, UNIVERSITY OF PONTA GROSSA; CAROLINA WEIGERT GALVÃO, UNIVERSITY OF PONTA GROSSA; FABRÍCIO DARIO CASSÁN, NATIONAL UNIVERSITY OF RIO CUARTO; SALOMÉ URREA-VALENCIA, UNIVERSITY OF PONTA GROSSA; ANNA CECÍLIA STREMEL, UNIVERSITY OF PONTA GROSSA; MARIA ISABEL STETS, UNIVERSITY OF PONTA GROSSA; MARÍLIA APARECIDA STROKA KREMER, UNIVERSITY OF PONTA GROSSA; EDERSON DA CONCEICAO JESUS, CNPAB; RAFAEL MAZER ETTO, UNIVERSITY OF PONTA GROSSA. |
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Título: |
Tracking maize colonization and growth promotion by Azospirillum reveals strain-specific behavior and the influence of inoculation method. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Plant Physiology and Biochemistry, v. 215, article 108979, October 2024. |
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ISSN: |
0981-9428 |
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DOI: |
https://doi.org/10.1016/j.plaphy.2024.108979 |
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Idioma: |
Inglês |
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Conteúdo: |
Inoculation of Azospirillum in maize has become a standard practice in Latin America. However, information on the behavior and population survival of the Azospirillum post-inoculation is scarce, making standardization difficult and generating variations in inoculation efficiency across assays. In this study, we tracked the colonization of three agriculturally relevant Azospirillum strains (Ab-V5, Az39, and the ammonium excreting HM053) after different inoculation methods in maize crops by qPCR. Besides, we assessed their ability to promote maize growth by measuring biometric parameters after conducting a greenhouse essay over 42 days. Inoculated plants exhibited Azospirillum population ranging from 103 to 107 cells plant−1 throughout the experiment. While all strains efficiently colonized roots, only A. argentinense Az39 demonstrated bidirectional translocation between roots and shoots, which characterizes a systemic behavior. Optimal inoculation methods for plant growth promotion varied among strains: soil inoculation promoted the best maize growth for the Ab-V5 and Az39 strains, while seed inoculation proved most effective for HM053. The findings of this study demonstrate that the inoculation method affects the behavior of Azospirillum strains and their effectiveness in promoting maize growth, thereby guiding practices to enhance crop yield. |
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Palavras-Chave: |
Bacterial survival; Plant growth promoting rhizobacteria; QPCR; Tracking. |
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Thesaurus Nal: |
Inoculation methods. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
null
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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