Influence of a brassinosteroid analogue on antioxidant enzymes in rice grown in culture medium with NaCl

dc.creatorNunez, M
dc.creatorMazzafera, P
dc.creatorMazorra, LM
dc.creatorSiqueira, WJ
dc.creatorZullo, MAT
dc.date2003
dc.date2014-11-19T14:33:24Z
dc.date2015-11-26T17:06:43Z
dc.date2014-11-19T14:33:24Z
dc.date2015-11-26T17:06:43Z
dc.date.accessioned2018-03-28T23:55:11Z
dc.date.available2018-03-28T23:55:11Z
dc.identifierBiologia Plantarum. Kluwer Academic Publ, v. 47, n. 1, n. 67, n. 70, 2003.
dc.identifier0006-3134
dc.identifierWOS:000185512900011
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60181
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/60181
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60181
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279933
dc.descriptionWe studied the effects of a polyhydroxylated spirostanic brassinosteroid analogue (BB-16) on the activities of antioxidant enzymes in rice seedlings grown in vitro in culture medium supplemented with NaCl. Seedlings were grown in medium with 75 mM NaCl and 0.001 or 0.01 mg dm(-3) BB-16 for 16 d or 3-d-old seedlings were exposed for 4 d to 0,0.001 or 0.01 mg dm(-3) BB-16 then further grown in medium with 75 mM NaCl without BB-16. Seedlings exposed to 0.01 mg dm(-3) BB-16 for 16 d showed significant increase in the activities of catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR) and a slight increase in ascorbate peroxidase (APX). On the other hand, 4-d exposure to BB-16 only increased SOD and CAT activities at concentration 0.001 mg dm(-3). GR activity was not altered by this BB-16 treatment. These results indicated that BB-16, which is structurally modified in the lateral chain in relation to natural brassinosteroids, changes the activity of key antioxidant enzymes, which might confer tolerance to saline stress.
dc.description47
dc.description1
dc.description67
dc.description70
dc.languageen
dc.publisherKluwer Academic Publ
dc.publisherDordrecht
dc.publisherHolanda
dc.relationBiologia Plantarum
dc.relationBiol. Plant.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectascorbate peroxidase
dc.subjectcatalase
dc.subjectglutathione reductase
dc.subjectOryza sativa
dc.subjectsaline stress
dc.subjectsuperoxide dismutase
dc.subject2 Maize Cultivars
dc.subjectHydrogen-peroxide
dc.subjectPlant-growth
dc.subjectRegulators
dc.subjectOxygen
dc.subjectGlutathione
dc.subjectAscorbate
dc.subjectStress
dc.subjectTissue
dc.subjectCallus
dc.titleInfluence of a brassinosteroid analogue on antioxidant enzymes in rice grown in culture medium with NaCl
dc.typeArtículos de revistas


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