Prospecting Plant Growth-Promoting Bacteria Isolated from the Rhizosphere of Sugarcane Under Drought Stress

Autor(es)

Pereira, Leticia B. ^[1] ; Andrade, Gabriela S. ^[2] ; Meneghin, Silvana P. ^[2] ; Vicentini, Renato ^[3] ; Ottoboni, Laura M. M. ^[1]

Afiliação do(s) autor(es)

^[1] State Univ Campinas UNICAMP, Ctr Mol Biol & Genet Engn CBMEG, 400 Candido Rondon Ave, Campinas, SP - Brazil

^[2] Fed Univ Sao Carlos UFSCar, Dept Biotechnol & Vegetal & Anim Prod, Araras, SP - Brazil

^[3] State Univ Campinas UNICAMP, Dept Plant Biol, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Current Microbiology; v. 76, n. 11, p. 1345-1354, NOV 2019.
• Citações Web of Science: 0

Resumo

In the rhizosphere, the soil bacteria and the plants are closely related, with the plant-associated microbiota playing an important role in promoting plant growth under both normal and stress conditions. In this study, the cultivable bacteria in the sugarcane rhizosphere under different levels of drought stress were characterized and screened for plant growth activities. The results suggested that the microbial community associated with the sugarcane rhizosphere was strongly affected by drought, but some important genera of bacteria such as Arthrobacter, Pseudomonas, Microbacterium, and Bacillus remained present during the entire experiment, indicating the adaptability of these organisms and their importance in the rhizosphere community. Many isolates exhibited positive results for one or more plant growth activity, and they were also capable of growing under simulated drought stress, suggesting that the microorganisms isolated from the sugarcane rhizosphere could be explored for uses such as biofertilizers or biocontrol agents in agriculture. (AU)

• Processo FAPESP: 15/00408-5 - Impacto da elevada concentração de CO2 e do estresse hídrico na microbiota associada à rizosfera de cana-de-açúcar
• Beneficiário: Renato Vicentini dos Santos
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Regular
• Processo FAPESP: 14/05929-0 - Impacto da elevada concentração de CO2 e do estresse hídrico na microbiota associada à rizosfera de cana-de-açúcar
• Beneficiário: Letícia Bianca Pereira
• Modalidade de apoio: Bolsas no Brasil - Doutorado