Characterization of Arabidopsis calreticulin mutants in response to calcium and salinity stresses
Characterization of Arabidopsis calreticulin mutants in response to calcium and salinity stresses作者机构:Institute of Genetics and Developmental Biology Chinese Academy of Sciences National Key Laboratory of Plant Genomics Chaoyang District Datun Road Beijing 100101 China
出 版 物:《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期:2008年第18卷第10期
页 面:1219-1224页
核心收录:
学科分类:0710[理学-生物学] 07[理学] 09[农学] 0805[工学-材料科学与工程(可授工学、理学学位)] 071007[理学-遗传学] 0901[农学-作物学] 090102[农学-作物遗传育种] 0702[理学-物理学]
基 金:supported by National High-Tech Program of China (2006AA10Z113 2006AA10Z18201) National Natural Science Foundation of China (30671316)
主 题:Calreticulin Calcium Stress Arabidopsis
摘 要:As an important calcium-binding protein,calreticulin plays an important role in regulating calcium homeostasis in endoplasmic retic- ulum (ER) of ***,we identified three loss-of-function mutants of calreticulin genes in Arabidopsis to demonstrate the function of calreticulin in response to calcium and salinity *** are three genes encoding calreticulin in Arabidopsis,and they are named AtCRT1,2,and 3,*** found that both single mutant of crt3 and double mutant of crtl crt2 were more sensitive to low calcium environment than wild-type ***,crt3 mutant showed more sensitivity to salt treatment at germination stage, but tolerance to salt stress at later stage compared with wild-type ***,there was no obvious growth difference in the mutant crtl and crt2 compared with wild-type Arabidopsis under calcium and salt *** results suggest that calreticulin functions in plant responses to calcium and salt stresses.