Effect of NaCl Stress on Chlorophyll Content and Photosynthetic Characteristics of Glycine soja and Glycine max(PDF)
《大豆科学》[ISSN:1000-9841/CN:23-1227/S]
- Issue:
- 2013年04期
- Page:
- 486-489
- Research Field:
- Publishing date:
Info
- Title:
- Effect of NaCl Stress on Chlorophyll Content and Photosynthetic Characteristics of Glycine soja and Glycine max
- Author(s):
- ?ZHENG Shi-ying; XIAO Bei-lei; JIN Gui-fang
- ?Department of Agronomy，Dezhou University，Dezhou 253023，China
- Keywords:
- Glycine soja; Glycine max; Photosynthetic characteristic; Stomatal limitation
- PACS:
- S565.1
- DOI:
- 10.11861/j.issn.1000-9841.2013.04.0486
- Abstract:
- ?In order to explore the different salt resistance mechanism between a wild soybean(Glycine soja, ZYD 03262）and a cultivated soybean(Glycine max,Ludou 2),the response of chlorophyll,net photosynthetic rate(Pn),stomatal conductance(Pn),intercellular CO2 concentration(Ci)and limitation of stomatal(Ls)under different NaCl concentration treatments(0,50,100,150,200 mmol·L-1） was investigated.Rusults showed that the content of chlorophyll,Pn,Gs and Ls in wild soybean were all higher,while Ci were lower than that in cultivated soybean under NaCl treatment.The stomatal limitation was a major cause affecting Pn and promoting stomatal opening under lower NaCl contentration.Under higher NaCl concentration,non-stomatal limitation was a major cause which induced osmotic stress and enhanced stomatal closure.The inhibition of the NaCl on chlorophyll and photosynthesis characteristics in the cultivated soybean was more serious than in the wild soybean,which was one of the mechanisms to keep higher salt resistance in the wild soybean.
Last Update: 2014-02-17