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- Title
茶多酚对铅胁迫下烟草生理指标及 铅积累的影响.
- Authors
张留双; 谢徽; 杨金清; 韩佳祺; 保志娟
- Abstract
To explore the effects of exogenous tea polyphenols on Pb stress in tobacco, a pot experiment was conducted to simulate soil lead(Pb, 750 mg/kg) pollution to study the effects of pouring tea polyphenols(TP, 0, 300, 600, 900 mg/kg)on the key indicators of antioxidation and nitrogen metabolism in flue‐cured tobacco K326 leaves, and biomass and Pb accumulation in tobacco plants. The results showed that tobacco plant biomass was significantly inhibited under Pb stress, and the activities of superoxide dismutase(SOD), peroxidase(POD), nitrite reductase(NiR), and the content of malondialdehyde (MDA), reactive oxygen species(ROS), hydrogen peroxide(H2O2 ), nitrate nitrogen(NO3- ‐N)and soluble protein in tobacco leaves were increased, while the activities of catalase(CAT)and nitrate reductase (NR)were decreased;After adding tea polyphenols, the biomass of tobacco plants and CAT activity of tobacco leaves were increased, excessive ROS and H2O2 were removed, MDA accumulation was inhibited,
- Subjects
PLANT biomass; NITRITE reductase; NITRATE reductase; PLANT polyphenols; REACTIVE oxygen species; SUPEROXIDE dismutase; TOBACCO smoke
- Publication
Journal of Henan Agricultural Sciences, 2023, Vol 52, Issue 6, p34
- ISSN
1004-3268
- Publication type
Article
- DOI
10.15933/j.cnki.1004‐3268.2023.06.004