Effects of seeds soaking with Ca(NO3)2 on some osmolytes in pepper under low temperature stress
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DOI:10.7606/j.issn.1000-7601.2008.05.34
Key Words: Ca2+  W7  pepper  soluble sugar  soluble protein  proline
Author NameAffiliation
GUO Xiaodong College of Horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China
Institute of Vegetables, Gansu Provincial Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
ZOU Zhirong College of Horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China 
ZHANG Huasheng Institute of Vegetables, Gansu Provincial Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
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Abstract:
      Effects of seeds soaking with different concentrations of Ca(NO3)2 and inhibitors of Ca2+ signal system on some osmolytes, including soluble protein, soluble sugar and proline in pepper under low temperature stress were investigated. The results indicated that calcium(40 mmol/L) treatment could increase markedly the content of soluble sugar, soluble protein and proline. Moreover, addition of calmodulin antagonist W7 could decrease markedly the content of soluble sugar, soluble protein and praline under low temperature. It is suggested that Ca2+ signal system may have close relationship with the change of some osmolytes in Pepper under low temperature.