摘要
The ATP-dependent serine protease Lon belongs to the AAA+ superfamily,which is widely distributed in bacteria,archaea,and eukaryotic cells. Lon participates in the regulation of numerous physiological processes and gene expression via degrading various unstable and non-native regulators. In this study,we showed that the Arabidopsis atlon4 mutant is more sensitive to drought stress than wild-type plants. Compared with wild-type plants,atlon4 mutant plants showed increased water loss,decreased water use efficiency,and impaired stomatal closure in drought stress conditions.
The ATP-dependent serine protease Lon belongs to the AAA~ superfamily, which is widely distributed in bacteria, archaea, and eukaryotic cells, Lon participates in the regulation of numerous physiological processes and gene expression via degrading vari- ous unstable and non-native regulators. In this study, we showed that the Arabidopsis atlon4 mutant is more sensitive to drought stress than wild-type plants. Compared with wild-type plants, atlon4 mutant plants showed increased water loss, decreased water use efficiency, and impaired stomatal closure in drought stress conditions.
基金
supported by the National Basic Research Program of China (2009CB118500)
