PT Journal
AU Goel, A
   Sheoran, I
TI Lipid Peroxidation and Peroxide-Scavenging Enzymes in Cotton Seeds Under Natural Ageing
SO Biologia plantarum
PY 2003
BP 429
EP 434
VL 46
IS 3
DI 10.1023/A:1024398724076
WP https://bp.ueb.cas.cz/artkey/bpl-200303-0041.php
DE ascorbate peroxidase; catalase; germination; glutathione reductase; Gossypium hirsutum; H2O2; malondialdehyde; superoxide dismutase
AB 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 H<sub>2</sub>O<sub>2</sub> 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.
ER