U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Main content area

Overexpression of soybean GmCBL1 enhances abiotic stress tolerance and promotes hypocotyl elongation in Arabidopsis

Li, Zhi-Yong, Xu, Zhao-Shi, He, Guang-Yuan, Yang, Guang-Xiao, Chen, Ming, Li, Lian-Cheng, Ma, You-Zhi
Biochemical and biophysical research communications 2012 v.427 no.4 pp. 731-736
Arabidopsis, abiotic stress, drought, gene expression, genes, gibberellins, hypocotyls, plant hormones, plant stress, proteins, roots, seedlings, soybeans, stress tolerance, transgenic plants
Although extensive studies and remarkable progress have been made with Arabidopsis calcineurin B-like proteins (CBLs), knowledge of their functions in other plant species is still limited. Here we isolated gene GmCBL1 from soybean, a homolog of AtCBL1 in Arabidopsis. GmCBL1 was differentially induced by multiple abiotic stress and plant hormones, and its transcripts were abundant in seedlings and mature roots. We over-expressed GmCBL1 in Arabidopsis and found that it enhanced tolerances to both high salt and drought stresses in the transgenic plants. Overexpression of GmCBL1 also promoted hypocotyl elongation under light conditions. GmCBL1 may regulate stress tolerance through activation of stress-related genes, and may control hypocotyl development by altering the expression of gibberellin biosynthesis-related genes. This study identifies a putative soybean CBL gene that functions in both stress tolerance and light-dependent hypocotyl development.