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dc.contributor.authorMENDES, L. W.
dc.contributor.authorPELLEGRINETTI, T. A.
dc.contributor.authorSILVA, A. V. R. da
dc.contributor.authorCUNHA, I. C. M.
dc.contributor.authorNISHISAKA, C. S.
dc.contributor.authorBOLETA, E. H. M.
dc.contributor.authorLOSOVOI, L. de A.
dc.contributor.authorBARBOSA, M. C.
dc.contributor.authorMENDES, R.
dc.contributor.authorTSAI, S. M.
dc.date.accessioned2026-02-27T20:11:39Z-
dc.date.available2026-02-27T20:11:39Z-
dc.date.created2026-02-27
dc.date.issued2025
dc.identifier.citationIn: ISME LATIN AMERICAN CONGRESS ON MICROBIAL ECOLOGY, 4., 2025, Mérida. [Abstracts]... Wageningen: The International Society for Microbial Ecology (ISME), 2025.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1184783-
dc.descriptionClimate change-driven increases in temperature and reductions in water availability present critical threats to global food security. Harnessing the potential of the rhizosphere microbiome represents a promising strategy to enhance crop resilience under drought stress. In this study, we investigated the responses of four common bean (Phaseolus vulgaris L.) cultivars—two drought-tolerant (BAT477, SEA5) and two drought-susceptible (IAC Milênio, IAC-Carioca 80SH)—to 96 hours of drought stress in mesocosm experiments. We assessed plant physiological responses, nutrient dynamics, and the taxonomic and functional profiles of the rhizosphere microbiome using metagenomic approaches. Drought-tolerant cultivars maintained higher photosynthetic rates, stomatal conductance, and water use efficiency compared to susceptible ones. These physiological advantages were accompanied by selective recruitment of beneficial microbial taxa, particularly Actinomycetia, enriched in genes linked to osmoprotection (e.g., trehalose, glycine betaine, proline), oxidative stress mitigation, nutrient cycling, and biofilm formation. In contrast, susceptible cultivars displayed a reactive microbial response dominated by DNA repair and antioxidant defense genes. Overall, drought triggered a differential abundance of 1,864 microbial genes, revealing significant functional shifts in the rhizosphere. Upon rehydration, drought-tolerant cultivars exhibited partial recovery of photosynthesis (48–57%), suggesting microbiome-conferred resilience. These findings highlight the genotype-specific modulation of rhizosphere microbiota and underscore the role of microbial functions in supporting plant performance under stress. This study provides mechanistic insights into microbiome-driven drought tolerance and supports the development of microbiome-based strategies for sustainable agriculture in increasingly arid environments.
dc.language.isopor
dc.rightsopenAccess
dc.titleRhizosphere microbiome functional shifts drive drought tolerance in common bean genotypes.
dc.typeResumo em anais e proceedings
dc.subject.thesagroRizosfera
dc.subject.nalthesaurusMicrobiome
dc.subject.nalthesaurusBeanspor
dc.subject.nalthesaurusDrought tolerancepor
dc.format.extent22 p.
riaa.ainfo.id1184783
riaa.ainfo.lastupdate2026-02-27
dc.contributor.institutionLUCAS WILLIAM MENDES, ESALQ/USP
dc.contributor.institutionTHIERRY ALEXANDRE PELLEGRINET, USPpor
dc.contributor.institutionANA VITÓRIA REINA DA SILVA, PUCCAMPpor
dc.contributor.institutionIZADORA DE CÁSSIA MESQUITA DA CUNHA, CENTER FOR NUCLEAR ENERGY IN AGRICULTURE/USPpor
dc.contributor.institutionCAROLINE SAYURI NISHISAKA, EMBRAPA MEIO AMBIENTEpor
dc.contributor.institutionEDUARDO HENRIQUE MARCANDALLI BOLETA, CENTER FOR NUCLEAR ENERGY IN AGRICULTURE/USPpor
dc.contributor.institutionLARA DE ALMEIDA LOSOVOIpor
dc.contributor.institutionMAYCON CRISTIANO BARBOSApor
dc.contributor.institutionRODRIGO MENDES, CNPMApor
dc.contributor.institutionS. M. TSAI, ESALQ/USP.por
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