Modulation of antioxidant enzyme activities and metabolites ratios by nitric oxide in short-term salt stressed soybean root nodules

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dc.contributor.authorEgbichi, I.
dc.contributor.authorKeyster, Marshall
dc.contributor.authorJacobs, Alex
dc.contributor.authorKlein, Ashwil
dc.contributor.authorLudidi, Ndiko
dc.date.accessioned2018-02-05T16:50:12Z
dc.date.available2018-02-05T16:50:12Z
dc.date.issued2013
dc.description.abstractSeveral abiotic factors cause molecular damage to plants either directly or through the accumulation of reactive oxygen species such as hydrogen peroxide (H2O2). We investigated if application of nitric oxide (NO) donor 2,2′- (hydroxynitrosohydrazono) bis-ethanimine (DETA/NO) could reduce the toxic effect resulting from short-term salt stress. Salt treatment (150 mM NaCl) alone and in combination with 10 μM DETA/NO or 10 μM DETA were given to matured soybean root nodules for 24 h. Salt stress resulted in high H2O2 level and lipid peroxidation while application of DETA/NO effectively reduced H2O2 level and prevented lipid peroxidation in the soybean root nodules. NO treatment increased the activities of ascorbate peroxidase and dehydroascorbate reductase under salt stress. Whereas short-term salt stress reduced AsA/DHAsA and GSH/GSSG ratios, application of the NO donor resulted in an increase of the reduced form of the antioxidant metabolites thus increasing the AsA/DHAsA and GSH/GSSG ratios. Our data suggests a protective role of NO against salt stress.en_US
dc.description.accreditationWeb of Science
dc.identifier.citationEgbichi, I. et al. (2013). Modulation of antioxidant enzyme activities and metabolites ratios by nitric oxide in short-term salt stressed soybean root nodules. South African Journal of Botany, 88: 326 – 333.en_US
dc.identifier.issn0254-6299
dc.identifier.urihttp://dx.doi.org/10.1016/j.sajb.2013.08.008
dc.identifier.urihttp://hdl.handle.net/10566/3472
dc.language.isoenen_US
dc.privacy.showsubmitterFALSE
dc.publisherElsevieren_US
dc.rightsThis is the author-version of the article published online at: http://dx.doi.org/10.1016/j.sajb.2013.08.008
dc.status.ispeerreviewedTRUE
dc.subjectAntioxidant enzymesen_US
dc.subjectAntioxidant metabolitesen_US
dc.subjectHydrogen peroxideen_US
dc.subjectNitric oxideen_US
dc.subjectLipid peroxidationen_US
dc.subjectSalt stressen_US
dc.subjectSoybean root nodulesen_US
dc.titleModulation of antioxidant enzyme activities and metabolites ratios by nitric oxide in short-term salt stressed soybean root nodulesen_US
dc.typeArticleen_US

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