Can arbuscular mycorrhizal fungi and rhizobacteria facilitate 33P uptake in maize plants under water stress?

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorBangor University-
Autor(es): dc.contributorMurdoch University-
Autor(es): dc.contributorInner Mongolia Agricultural University-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorSoil Microbiology Laboratory-
Autor(es): dc.creatorSilva, Antonio M.M.-
Autor(es): dc.creatorJones, Davey L.-
Autor(es): dc.creatorChadwick, Dave R.-
Autor(es): dc.creatorQi, Xue-
Autor(es): dc.creatorCotta, Simone R.-
Autor(es): dc.creatorAraújo, Victor L.V.P.-
Autor(es): dc.creatorMatteoli, Filipe P.-
Autor(es): dc.creatorLacerda-Júnior, Gileno V.-
Autor(es): dc.creatorPereira, Arthur P.A.-
Autor(es): dc.creatorFernandes-Júnior, Paulo I.-
Autor(es): dc.creatorCardoso, Elke J.B.N.-
Data de aceite: dc.date.accessioned2025-08-21T16:47:43Z-
Data de disponibilização: dc.date.available2025-08-21T16:47:43Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.micres.2023.127350-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246990-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246990-
Descrição: dc.descriptionArbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) are able to provide key ecosystem services, protecting plants against biotic and abiotic stresses. Here, we hypothesized that a combination of AMF (Rhizophagus clarus) and PGPR (Bacillus sp.) could enhance 33P uptake in maize plants under soil water stress. A microcosm experiment using mesh exclusion and a radiolabeled phosphorus tracer (33P) was installed using three types of inoculation: i) only AMF, ii) only PGPR, and iii) a consortium of AMF and PGPR, alongside a control treatment without inoculation. For all treatments, a gradient of three water-holding capacities (WHC) was considered i) 30% (severe drought), ii) 50% (moderate drought), and iii) 80% (optimal condition, no water stress). In severe drought conditions, AMF root colonization of dual-inoculated plants was significantly lower compared to individual inoculation of the AMF, whilst 33P uptake by dual-inoculated plants or plants inoculated with bacteria was 2.4-fold greater than the uninoculated treatment. Under moderate drought conditions the use of AMF promoted the highest 33P uptake by plants, increasing it by 2.1-fold, when compared to the uninoculated treatment. Without drought stress, AMF showed the lowest 33P uptake and, overall, plant P acquisition was lower for all inoculation types when compared to the severe and moderate drought treatments. The total shoot P content was modulated by the water-holding capacity and inoculation type, with the lowest values observed under severe drought and the highest values under moderate drought. The highest soil electrical conductivity (EC) values were found under severe drought in AMF-inoculated plants and the lowest EC for no drought in single or dual-inoculated plants. Furthermore, water-holding capacity influenced the total soil bacterial and mycorrhizal abundance over time, with the highest abundances being found under severe and moderate drought. This study demonstrates that the positive influence of microbial inoculation on 33P uptake by plants varied with soil water gradient. Furthermore, under severe stress conditions, AMF invested more in the production of hyphae, vesicles and spore production, indicating a significant carbon drain from the host plant as evidenced by the lack of translation of increased 33P uptake into biomass. Therefore, under severe drought the use of bacteria or dual-inoculation seems to be more effective than individual AMF inoculation in terms of 33P uptake by plants, while under moderate drought, the use of AMF stood out.-
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.descriptionUniversity of São Paulo “Luiz de Queiroz” College of Agriculture Soil Science Department, São Paulo-
Descrição: dc.descriptionSchool of Natural Sciences Bangor University, Bangor-
Descrição: dc.descriptionSoilsWest Centre for Sustainable Farming Systems Food Futures Institute Murdoch University-
Descrição: dc.descriptionCollege of Grassland Resources and Environment Inner Mongolia Agricultural University, Inner Mongolia Autonomous Region-
Descrição: dc.descriptionUniversity of São Paulo Center for Nuclear Energy in Agriculture, São Paulo-
Descrição: dc.descriptionLaboratory of Microbial Bioinformatics Department of Biological Sciences Faculty of Sciences São Paulo State University-
Descrição: dc.descriptionBrazilian Agricultural Research Corporation – Embrapa, São Paulo-
Descrição: dc.descriptionFederal University of Ceará Soil Science Department Soil Microbiology Laboratory, Ceará-
Descrição: dc.descriptionBrazilian Agricultural Research Corporation – Embrapa Semiárido, Pernambuco-
Descrição: dc.descriptionLaboratory of Microbial Bioinformatics Department of Biological Sciences Faculty of Sciences São Paulo State University-
Descrição: dc.descriptionFAPESP: #2016/18944-3-
Descrição: dc.descriptionFAPESP: #2017/24785-8-
Descrição: dc.descriptionFAPESP: #2019/13436-8-
Descrição: dc.descriptionFAPESP: #2019/27682-0-
Descrição: dc.descriptionFAPESP: #2020/12751-4-
Descrição: dc.descriptionCAPES: 001-
Idioma: dc.languageen-
Relação: dc.relationMicrobiological Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectIsotope tracer-
Palavras-chave: dc.subjectPhosphate nutrition-
Palavras-chave: dc.subjectPlant symbiosis-
Palavras-chave: dc.subjectSoil-dwelling microbes-
Palavras-chave: dc.subjectWater shortage-
Título: dc.titleCan arbuscular mycorrhizal fungi and rhizobacteria facilitate 33P uptake in maize plants under water stress?-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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