Mycorrhization alters foliar soluble amino acid composition and influences tolerance to Pb in Calopogonium mucunoides

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dc.contributor.authorSouza, Lucas Anjos
dc.contributor.authorCamargos, Liliane Santos [UNESP]
dc.contributor.authorSchiavinato, Marlene Aparecida
dc.contributor.authorLopez Andrade, Sara Adrian
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-11-03T15:30:15Z
dc.date.available2015-11-03T15:30:15Z
dc.date.issued2014-12-01
dc.description.abstractSoil contamination by lead (Pb) is a problem due to the persistence of this element on soil. High amounts of Pb in soil impair plant establishment, however some plants may increase tolerance to heavy metals when colonized by arbuscular mycorrhizal fungi (AMF). The leguminous plant, Calopogonium mucunoides, is Pb-sensitive that is tolerant to Pb when associated to AMF. We performed a chromatographic analysis of foliar free-amino acid in non-mycorrhizal and mycorrhizal plants to determine its relation with Pb tolerance. Mycorrhization caused drastic increase in aspartate, glutamine, glycine, threonine, alanine, isoleucine and gamma-aminobutiric acid (GABA), while depletion of asparagine, histidine and arginine was observed in AMF-associated plants. When grouped according to common metabolic precursor, it was found that amino acids derived from 3-phosphoglicerate and pyruvate was higher in mycorrhizal plants while amino acids derived from glucose-6-phosphate and 2-oxoglutarate were higher in nonmycorrhizal plants; phosphoenolpyruvate and oxaloacetate pathways were not influenced by mycorrhization. Summarizing, mycorrhization changed soluble amino acids profile in C. mucunoides leaves, especially aspartate, alanine and GABA, which may be involved in tolerance to abiotic stress. Additionally the depletion of asparagine, histidine and arginine may be related to a deviation for metabolic pathways not related to protein biosynthesis but to the synthesis of polyamines, especially in the case of arginine. Therefore, we suggest that mycorrhization influence on soluble free amino acid profile in leaves can be one of the factors involved with the attenuation of Pb toxicity in AMF-associated C. mucunoides plants.en
dc.description.affiliationState Univ Campinas UNICAMP, Inst Biol, Dept Plant Biol, BR-13083970 Campinas, SP, Brazil
dc.description.affiliationUNESP Univ Estadual Paulista, Fac Engn Ilha Solteira, Dept Biol &Zootecnia, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespUNESP – Universidade Estadual Paulista, Departamento de Biologia e Zootecnia, Faculdade de Engenharia de Ilha Solteira, Ilha Solteira, SP, 15385-000, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent211-216
dc.identifierhttp://link.springer.com/article/10.1007%2Fs40626-014-0019-x
dc.identifier.citationTheoretical And Experimental Plant Physiology. Campinas: Brazilian Soc Plant Physiology, v. 26, n. 3-4, p. 211-216, 2014.
dc.identifier.doi10.1007/s40626-014-0019-x
dc.identifier.issn2197-0025
dc.identifier.lattes2721709345785473
dc.identifier.urihttp://hdl.handle.net/11449/130207
dc.identifier.wosWOS:000347088700005
dc.language.isoeng
dc.publisherBrazilian Soc Plant Physiology
dc.relation.ispartofTheoretical And Experimental Plant Physiology
dc.relation.ispartofjcr0.885
dc.relation.ispartofsjr0,493
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectHeavy metalen
dc.subjectLeaden
dc.subjectMetabolitesen
dc.subjectMetal-toleranceen
dc.titleMycorrhization alters foliar soluble amino acid composition and influences tolerance to Pb in Calopogonium mucunoidesen
dc.typeArtigo
dcterms.rightsHolderBrazilian Soc Plant Physiology
unesp.author.lattes2721709345785473
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentBiologia e Zootecnia - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia