Inoculation with plant growth-promoting bacteria mitigates the negative impacts of 2 °C warming on the photosynthesis, growth, and nutritional value of a tropical C4 grassland under field conditions

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorGoiano Institute Federal (IF Goiano) at Rio Verde-
Autor(es): dc.contributorThe New Zealand Institute for Plant and Food Research Ltd-
Autor(es): dc.contributorSão Paulo Agribusiness Technology Agency (APTA)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorHabermann, Eduardo-
Autor(es): dc.creatorRiul, Beatriz Neroni-
Autor(es): dc.creatorNóbile, Fábio Henrique Moscardini-
Autor(es): dc.creatorSantana, Ramon Martins-
Autor(es): dc.creatorOliveira, Kamilla Silva-
Autor(es): dc.creatorde Souza Marques, Bruno-
Autor(es): dc.creatorDias de Oliveira, Eduardo Augusto-
Autor(es): dc.creatorBranco, Roberto Botelho Ferraz-
Autor(es): dc.creatorCosta, Kátia Aparecida de Pinho-
Autor(es): dc.creatorHungria, Mariangela-
Autor(es): dc.creatorNogueira, Marco Antônio-
Autor(es): dc.creatorMartinez, Carlos Alberto-
Data de aceite: dc.date.accessioned2025-08-21T17:26:52Z-
Data de disponibilização: dc.date.available2025-08-21T17:26:52Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2025.178769-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/299685-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/299685-
Descrição: dc.descriptionHuman-induced climate change is causing Earth's temperature to rise, and models indicate a persistent increase in the next years. Temperature is one of the most important factors regulating the carbon flux of natural and managed ecosystems. In the last decades, the use of plant growth-promoting bacteria in C4 grasses has emerged as an important alternative to alleviate the negative impacts of abiotic factors on plant metabolism, growth, and forage nutritional quality. In this study, we investigated the effects of warming (+2 °C) on the photosynthesis, plant water status, growth, and nutritional quality of a managed pasture of Brachiaria (syn. Urochloa) Mavuno inoculated or not with Azospirillum brasilense and Pseudomonas fluorescens. We evaluated two levels of temperature (ambient and elevated) under two levels of inoculation (inoculated and non-inoculated) in a multifactorial design. Our results showed that inoculation stimulated root growth and increased photosynthetic rates through higher stomatal conductance and improved photosystem II performance, presumably resulting in higher productivity, crude protein content, and forage digestibility with reduced lignin and fiber fraction. Warming increased non-photochemical quenching and electron transport rate in the wet season, but decreased midday maximum quantum efficiency of PSII photochemistry during dry season, relative water content, productivity, and forage quality and digestibility. When inoculated plants developed under a warmer atmosphere, the positive effects of inoculation completely counteract the negative impacts of warming on photosynthesis, growth, nutritional quality, and digestibility, resulting in a pasture with reduced lignin content and improved heating dissipating capacity and digestibility. Our results demonstrated that A. brasilense and P. fluorescens co-inoculation is a sustainable option to fully mitigate the negative impacts of elevated temperature on Mavuno grass pastures. These findings highlight the potential of microbial inoculants in enhancing forage resilience and productivity under climate stress.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionDepartment of Biology Ribeirão Preto School of Philosophy Science and Literature (FFCLRP) University of São Paulo, Av. Bandeirantes 3900, SP-
Descrição: dc.descriptionDepartment of Agricultural Science School of Agricultural and Veterinarian Sciences São Paulo State University, Access Road Prof. Paulo Donato Castellane No number, SP-
Descrição: dc.descriptionGoiano Institute Federal (IF Goiano) at Rio Verde, Sul Goiana Highway, Km1, GO-
Descrição: dc.descriptionThe New Zealand Institute for Plant and Food Research Ltd-
Descrição: dc.descriptionInstitute Agronomic São Paulo Agribusiness Technology Agency (APTA), Rodovia Antonio Duarte Nogueira, km 321, SP-
Descrição: dc.descriptionEmbrapa Soja, Rodovia Carlos João Strass, s/n°, C. Postal 4006, PR-
Descrição: dc.descriptionDepartment of Agricultural Science School of Agricultural and Veterinarian Sciences São Paulo State University, Access Road Prof. Paulo Donato Castellane No number, SP-
Descrição: dc.descriptionFAPESP: 2008/58075-8-
Descrição: dc.descriptionFAPESP: 2020/16359-1-
Descrição: dc.descriptionFAPESP: 2022/15021-2-
Descrição: dc.descriptionCAPES: 88887.110732/2025-0-
Idioma: dc.languageen-
Relação: dc.relationScience of the Total Environment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAzospirillum brasilense-
Palavras-chave: dc.subjectInoculation-
Palavras-chave: dc.subjectPseudomonas fluorescens-
Palavras-chave: dc.subjectSolutions for mitigation-
Palavras-chave: dc.subjectT-FACE-
Palavras-chave: dc.subjectTropical climate-
Palavras-chave: dc.subjectTropical forage-
Palavras-chave: dc.subjectWarming-
Título: dc.titleInoculation with plant growth-promoting bacteria mitigates the negative impacts of 2 °C warming on the photosynthesis, growth, and nutritional value of a tropical C4 grassland under field conditions-
Tipo de arquivo: dc.typelivro digital-
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