Effect of NaCl stress on growth and physiological-biochemical characteristics of Stellaria dichotoma / 中草药
Chinese Traditional and Herbal Drugs
;
(24): 2829-2833, 2014.
Article
Dans Chinois
| WPRIM
| ID: wpr-854891
ABSTRACT
Objective:
To investigate the effect of NaCl stress on growth and physiological-biochemical characteristics of Stellaria dichotoma amdits mechanism.Methods:
In this study, one-year-old S. dichotoma was cultivated in pot at four NaCl levels (0.2%, 0.3%, 0.4%, and 0.5%) and the plant growth parameters and physiological-biochemical characteristics were determined.Results:
NaCl stress had no significant effect on S. dichotoma growth at 0.3% NaCl. However, NaCl stress significantly inhibited the growth of S. dichotoma at 0.4% NaCl or above, and this inhibition was greater at higher concentration. The activities of SOD, POD, and CAT increased first and then decreased as NaCl concentration increased; The content of MDA and proline significantly increased as NaCl concentration increased, while membrane permeability and soluble protein content significantly decreased as NaCl concentration increased.Conclusion:
S. dichotoma has osmotic stress resistance ability and reactive oxygen scavenging capacity at light NaCl stress, which causes S. dichotoma growth no inhibited at a certain extent NaCl stress.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
langue:
Chinois
Texte intégral:
Chinese Traditional and Herbal Drugs
Année:
2014
Type:
Article
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