Water stress reveals differential antioxidant responses of tolerant and non-tolerant sugarcane genotypes

dc.creatorBoaretto, LF
dc.creatorCarvalho, G
dc.creatorBorgo, L
dc.creatorCreste, S
dc.creatorLandell, MGA
dc.creatorMazzafera, P
dc.creatorAzevedo, RA
dc.date2014
dc.dateJAN
dc.date2014-08-01T18:14:12Z
dc.date2015-11-26T16:58:19Z
dc.date2014-08-01T18:14:12Z
dc.date2015-11-26T16:58:19Z
dc.date.accessioned2018-03-28T23:45:55Z
dc.date.available2018-03-28T23:45:55Z
dc.identifierPlant Physiology And Biochemistry. Elsevier France-editions Scientifiques Medicales Elsevier, v. 74, n. 165, n. 175, 2014.
dc.identifier0981-9428
dc.identifierWOS:000331848900018
dc.identifier10.1016/j.plaphy.2013.11.016
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75942
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75942
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1277891
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThe biochemical responses of the enzymatic antioxidant system of a drought-tolerant cultivar (IACSP 94-2094) and a commercial cultivar in Brazil (IACSP 95-5000) grown under two levels of soil water restriction (70% and 30% Soil Available Water Content) were investigated. IACSP 94-2094 exhibited one additional active superoxide dismutase (Cu/Zn-SOD VI) isoenzyme in comparison to IACSP 95-5000, possibly contributing to the heightened response of IACSP 94-2094 to the induced stress. The total glutathione reductase (GR) activity increased substantially in IACSP 94-2094 under conditions of severe water stress; however, the appearance of a new GR isoenzyme and the disappearance of another isoenzyme were found not to be related to the stress response because the cultivars from both treatment groups (control and water restrictions) exhibited identical changes. Catalase (CAT) activity seems to have a more direct role in H2O2 detoxification under water stress condition and the shift in isoenzymes in the tolerant cultivar might have contributed to this response, which may be dependent upon the location where the excessive H2O2 is being produced under stress. The improved performance of IACSP 94-2094 under drought stress was associated with a more efficient antioxidant system response, particularly under conditions of mild stress. (C) 2013 Elsevier Masson SAS. All rights reserved.
dc.description74
dc.description165
dc.description175
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [2009/54676-0, BIOEN-2008/58035-6]
dc.languageen
dc.publisherElsevier France-editions Scientifiques Medicales Elsevier
dc.publisherParis
dc.publisherFrança
dc.relationPlant Physiology And Biochemistry
dc.relationPlant Physiol. Biochem.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectAbiotic stress
dc.subjectAntioxidant enzymes
dc.subjectReactive oxygen species
dc.subjectDrought stress
dc.subjectTriticum-aestivum L.
dc.subjectOxidative Stress
dc.subjectDrought Stress
dc.subjectGlutathione-reductase
dc.subjectPhysiological-responses
dc.subjectSuperoxide Dismutases
dc.subjectWheat Seedlings
dc.subject2 Varieties
dc.subjectEnzymes
dc.subjectLeaves
dc.titleWater stress reveals differential antioxidant responses of tolerant and non-tolerant sugarcane genotypes
dc.typeArtículos de revistas


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