Data/hora: 10/06/2024 12:13:47

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 27/03/2020
Data da última atualização: | 08/01/2021
Autoria: | SILVA, R.; FILGUEIRAS, L.; SANTOS, B.; COLELHO, M.; SILVA, M.; ESTRADA-BONILLA, G.; VIDAL, M. S.; BALDANI, J. I.; MENESES, C.
Afiliação: | RENATA SILVA, UEPB; LUANA FILGUEIRAS, UEPB; BRUNA SANTOS, UEPB; MARIANA COELHO, UEPB; MARIA SILVA, UEPB; GERMAN ESTRADA-BONILLA, Corporación Colombiana de Investigación Agropecuaria, Cundinamarca, Colombia; MARCIA SOARES VIDAL, CNPAB; JOSE IVO BALDANI, CNPAB; CARLOS MENESES, UEPB.
Título: | Gluconacetobacter diazotrophicus changes the molecular mechanisms of root development in Oryza sativa L. growing under water stress
Ano de publicação: | 2020
Fonte/Imprenta: | International Journal of Molecular Science, v. 21, n. 1, p. 333-353, 2020.
ISSN: | 1422-0067
DOI: | https://doi.org/10.3390/ijms21010333
Idioma: | Inglês
Conteúdo: | Inoculation with Gluconacetobacter diazotrophicus has shown to influence root development in red rice plants, and more recently, the induced systemic tolerance (IST) response to drought was also demonstrated. The goal of this study was to evaluate the inoculation effect of G. diazotrophicus strain Pal5 on the amelioration of drought stress and root development in red rice (Oryza sativa L.). Methods: The experimental treatments consist of red rice plants inoculated with and without strain Pal5 in presence and absence of water restriction. Physiological, biochemical, and molecular analyses of plant roots were carried out, along with measurements of growth and biochemical components. Results: The plants showed a positive response to the bacterial inoculation, with root growth promotion and induction of tolerance to drought. An increase in the root area and higher levels of osmoprotectant solutes were observed in roots. Bacterial inoculation increased the drought tolerance and positively regulated certain root development genes against the water deficit in plants. Conclusion: G. diazotrophicus Pal5 strain inoculation favored red rice plants by promoting various root growth and developmental mechanisms against drought stress, enabling root development and improving biochemical composition
Palavras-Chave: | Endophytic bacteria; Root development.
Thesaurus Nal: | Red rice.
Categoria do assunto: | S Ciências Biológicas
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (41367-1) - UPC - AP - DD -  -  -  - DIS