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Beneficial Plant-Associated Microorganisms From Semiarid Regions and Seasonally Dry Environments: A Review

Texto completo
Autor(es):
Bonatelli, Maria Leticia [1] ; Lacerda-Junior, Gileno Vieira [2] ; dos Reis Junior, Fabio Bueno [3] ; Fernandes-Junior, Paulo Ivan [4] ; Melo, Itamar Soares [2] ; Quecine, Maria Carolina [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Dept Genet, Luiz de Queiroz Coll Agr, Piracicaba - Brazil
[2] Brazilian Agr Res Corp, Embrapa Meio Ambiente, Jaguariuna - Brazil
[3] Brazilian Agr Res Corp, Embrapa Cerrados, Planaltina - Brazil
[4] Brazilian Agr Res Corp, Embrapa Semiarido, Petrolina - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo de Revisão
Fonte: FRONTIERS IN MICROBIOLOGY; v. 11, JAN 15 2021.
Citações Web of Science: 0
Resumo

Semiarid regions are apparently low biodiversity environments; however, these environments may host a phylogenetically diverse microbial community associated with plants. Their microbial inhabitants are often recruited to withstand stressful settings and improve plant growth under harsh conditions. Thus, plant-associated microorganisms isolated from semiarid and seasonally dry environments will be detailed in the present review, focusing on plant growth promotion potential and the microbial ability to alleviate plant abiotic stress. Initially, we explored the role of microbes from dry environments around the world, and then, we focused on seasonally dry Brazilian biomes, the Caatinga and the Cerrado. Cultivable bacteria from semiarid and seasonally dry environments have demonstrated great plant growth promotion traits such as plant hormone production, mobilization of insoluble nutrients, and mechanisms related to plant abiotic stress alleviation. Several of these isolates were able to improve plant growth under stressful conditions commonly present in typical semiarid regions, such as high salinity and drought. Additionally, we highlight the potential of plants highly adapted to seasonal climates from the Caatinga and Cerrado biomes as a suitable pool of microbial inoculants to maintain plant growth under abiotic stress conditions. In general, we point out the potential for the exploitation of new microbial inoculants from plants growing in dry environments to ensure a sustainable increase in agricultural productivity in a future climate change scenario. (AU)

Processo FAPESP: 16/18944-3 - Mudanças climáticas e eficiência energética na agricultura: um enfoque em estresse hídrico, manejo orgânico e biologia do solo
Beneficiário:Elke Jurandy Bran Nogueira Cardoso
Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
Processo FAPESP: 17/24785-8 - O papel da microbiota do solo na atenuação do estresse hídrico das plantas
Beneficiário:Gileno Vieira Lacerda Júnior
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado