Protective effect of exogenously applied nitric oxide on aluminum-induced oxidative stress in soybean plants

Aluminum (Al) toxicity promotes oxidative damage in plants, while nitric oxide (NO) may exert a beneficial effect on Al toxicity condition in soybean. Pretreatment with NO donor sodium nitroprusside (SNP) before soybean exposure to Al significantly reduced Al accumulation and MDA induction in the ro...

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Bibliographic Details
Published in:Russian journal of plant physiology 2011-09, Vol.58 (5), p.791-798
Main Authors: Cai, M. Z, Zhang, S. N, Wang, F. M, Wang, N, Xu, S. Y
Format: Article
Language:English
Subjects:
aluminum
Biomedical and Life Sciences
chlorophyll
Life Sciences
nitric oxide
nitroprusside
oxidative stress
peroxidase
plant damage
Plant Physiology
Plant Sciences
protective effect
Research Papers
root growth
single nucleotide polymorphism
soybeans
toxicity
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Summary:Aluminum (Al) toxicity promotes oxidative damage in plants, while nitric oxide (NO) may exert a beneficial effect on Al toxicity condition in soybean. Pretreatment with NO donor sodium nitroprusside (SNP) before soybean exposure to Al significantly reduced Al accumulation and MDA induction in the root apex. Pretreatment with SNP also increased the relative root elongation, chlorophyll content, and activity of the protective enzyme peroxidase compared to Al treatment alone. These results show the effect of exogenously applied NO as a protector against oxidative stress induced by Al. Moreover, the ameliorating effect can be reversed by the addition of NO scavenger 2-(4-carboxy-2-phenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO) in the presence of Al.
ISSN:1021-4437
1608-3407
DOI:10.1134/S1021443711050037