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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/64568
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dc.creatorVanessa de Almeida Barrospt_BR
dc.creatorRahul Chandnanipt_BR
dc.creatorSylvia M. de Sousapt_BR
dc.creatorLaiane S. Macielpt_BR
dc.creatorMutsutomo Tokizawapt_BR
dc.creatorClaudia T. Guimaraespt_BR
dc.creatorJurandir Vieira de Magalhaespt_BR
dc.creatorLeon V. Kochianpt_BR
dc.date.accessioned2024-02-23T18:01:03Z-
dc.date.available2024-02-23T18:01:03Z-
dc.date.issued2020-11-11-
dc.citation.volume11pt_BR
dc.citation.spage565339pt_BR
dc.citation.epage25pt_BR
dc.identifier.doihttps://doi.org/10.3389/fpls.2020.565339pt_BR
dc.identifier.issn1664-462Xpt_BR
dc.identifier.urihttp://hdl.handle.net/1843/64568-
dc.description.resumoCrop tolerance to multiple abiotic stresses has long been pursued as a Holy Grail in plant breeding efforts that target crop adaptation to tropical soils. On tropical, acidic soils, aluminum (Al) toxicity, low phosphorus (P) availability and drought stress are the major limitations to yield stability. Molecular breeding based on a small suite of pleiotropic genes, particularly those with moderate to major phenotypic effects, could help circumvent the need for complex breeding designs and large population sizes aimed at selecting transgressive progeny accumulating favorable alleles controlling polygenic traits. The underlying question is twofold: do common tolerance mechanisms to Al toxicity, P deficiency and drought exist? And if they do, will they be useful in a plant breeding program that targets stress-prone environments. The selective environments in tropical regions are such that multiple, co-existing regulatory networks may drive the fixation of either distinctly different or a smaller number of pleiotropic abiotic stress tolerance genes. Recent studies suggest that genes contributing to crop adaptation to acidic soils, such as the major Arabidopsis Al tolerance protein, AtALMT1, which encodes an aluminum-activated root malate transporter, may influence both Al tolerance and P acquisition via changes in root system morphology and architecture. However, trans-acting elements such as transcription factors (TFs) may be the best option for pleiotropic control of multiple abiotic stress genes, due to their small and often multiple binding sequences in the genome. One such example is the C2H2-type zinc finger, AtSTOP1, which is a transcriptional regulator of a number of Arabidopsis Al tolerance genes, including AtMATE and AtALMT1, and has been shown to activate AtALMT1, not only in response to Al but also low soil P. The large WRKY family of transcription factors are also known to affect a broad spectrum of phenotypes, some of which are related to acidic soil abiotic stress responses. Hence, we focus here on signaling proteins such as TFs and protein kinases to identify, from the literature, evidence for unifying regulatory networks controlling Al tolerance, P efficiency and, also possibly drought tolerance. Particular emphasis will be given to modification of root system morphology and architecture, which could be an important physiological “hub” leading to crop adaptation to multiple soil-based abiotic stress factors.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentENFERMAGEM - ESCOLA DE ENFERMAGEMpt_BR
dc.publisher.departmentMEDICINA - FACULDADE DE MEDICINApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofFrontiers in Plant Sciencept_BR
dc.rightsAcesso Abertopt_BR
dc.subjectAcid soilspt_BR
dc.subjectAluminum toxicitypt_BR
dc.subjectAluminum tolerancept_BR
dc.subjectPhosphorus deficiencypt_BR
dc.subjectPhosphorus efficiencypt_BR
dc.subjectDrought resistancept_BR
dc.subjectTranscription factorpt_BR
dc.subjectSignalingpt_BR
dc.subject.otherAlumíniopt_BR
dc.subject.otherAcidez do Solopt_BR
dc.subject.otherFósforopt_BR
dc.titleRoot Adaptation via Common Genetic Factors Conditioning Tolerance to Multiple Stresses for Crops Cultivated on Acidic Tropical Soilspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2020.565339/fullpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-5877-0030pt_BR
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