Regulation of exogenous calcium on photosynthetic system of honeysuckle under salt stress.
10.19540/j.cnki.cjcmm.20190322.101
- Author:
Lu-Yao HUANG
1
;
Zhuang-Zhuang LI
1
;
Tong-Yao DUAN
1
;
Lei WANG
1
;
Yong-Qing ZHANG
1
;
Jia LI
1
Author Information
1. Shandong University of Traditional Chinese Medicine Ji'nan 250355,China.
- Publication Type:Journal Article
- Keywords:
exogenous calcium;
honeysuckle(Lonicera japonica);
photosynthesis;
salt stress
- MeSH:
Calcium;
pharmacology;
Chlorophyll;
analysis;
Lonicera;
drug effects;
physiology;
Photosynthesis;
Plant Leaves;
Salt Stress
- From:
China Journal of Chinese Materia Medica
2019;44(8):1531-1536
- CountryChina
- Language:Chinese
-
Abstract:
Exogenous calcium can enhance the resistance of certain plants to abiotic stress. However,the role of calcium insaltstressed honeysuckle is unclear. The study is aimed to investigate the effects of exogenous calcium on the biomass,chlorophyll content,gas exchange parameters and chlorophyll fluorescence of honeysuckle under salt stress. The results showed that the calcium-treated honeysuckle had better photochemical properties than the salt-stressed honeysuckle,such as PIABS,PItotal,which represents the overall activity of photosystemⅡ(PSⅡ),and related parameters for characterizing electron transport efficiency φP0,ψE0,φE0,σR,and φR are significantly improved. At the same time,the gas exchange parameters Gs,Ci,Trare also maintained at a high level. In summary,exogenous calcium protects the activity of PSⅡ,promotes the transmission of photosynthetic electrons,and maintains a high Ci,therefore enhances the resistance of honeysuckle under salt stress.
