Lipid Peroxidation and Peroxide-Scavenging Enzymes in Cotton Seeds Under Natural Ageing

The present study was carried out to contribute to our knowledge of the mechanism of seed deterioration in two cotton (Gossypium hirsutum L.) cultivars (HS6 and H1098) during natural ageing. The seeds were sealed in polythene bags and stored at 25 ± 1 °C for 3, 6, 9, 12 and 18 months. In both the cu...

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Bibliographic Details
Published inBiologia plantarum Vol. 46; no. 3; pp. 429 - 434
Main Authors Goel, A., Sheoran, I.S.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.01.2003
Subjects
Aging
Aging (natural)
Ascorbic acid
Catalase
Cotton
Cultivars
Deterioration
Electrical conductivity
Electrical resistivity
Germinability
Glutathione
Glutathione reductase
Gossypium hirsutum
Hydrogen peroxide
L-Ascorbate peroxidase
Leachates
Lipid peroxidation
Lipids
Peroxidase
Peroxidation
Polyethylenes
Reductases
Scavenging
Seeds
Superoxide dismutase
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Summary:The present study was carried out to contribute to our knowledge of the mechanism of seed deterioration in two cotton (Gossypium hirsutum L.) cultivars (HS6 and H1098) during natural ageing. The seeds were sealed in polythene bags and stored at 25 ± 1 °C for 3, 6, 9, 12 and 18 months. In both the cultivars, germinability decreased whereas membrane deterioration assayed as electrical conductivity of the seed leachates increased with storage period. The decrease in germinability was well correlated with increased accumulation of H2O2 and malondialdehyde content. The activities of peroxidase, catalase, ascorbate peroxidase, glutathione reductase and superoxide dismutase decreased with ageing. Seeds of cv. H1098 were more susceptible to ageing than HS6.
ISSN:0006-3134
1573-8264
DOI:10.1023/A:1024398724076