Biologia plantarum 2012, 56:117-120 | DOI: 10.1007/s10535-012-0025-2

Cadmium induces early flowering in Arabidopsis

W. Y. Wang1,2, J. Xu1,*, X. J. Liu1,*, Y. Yu1,3, Q. Ge1
1 Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, P.R. China
2 College of Life Science and Geography, Qinghai Normal University, Xining, P.R. China
3 School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, P.R. China

We found that cadmium promoted flowering in Arabidopsis and suppressed nitric oxide accumulation in leaves. Supplementation with NO donor SNP delayed flowering, whereas application of NO scavenger cPTIO further promoted the transition from vegetative to reproductive stage under Cd stress. Semi-quantitative RT-PCR showed that Cd treatment up-regulated the expression of CONSTANS and FLOWERING LOCUS T, whereas down-regulated the expression of FLOWERING LOCUS C.

Keywords: nitric oxide; CONSTANS; FLOWERING LOCUS; FLOWERING LOCUS T
Subjects: nitric oxide; CONSTANS; FLOWERING LOCUS C; FLOWERING LOCUS T; flowering; cadmium
Species: Arabidopsis thaliana

Received: March 8, 2010; Accepted: July 21, 2010; Published: March 1, 2012Show citation

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Wang, W.Y., Xu, J., Liu, X.J., Yu, Y., & Ge, Q. (2012). Cadmium induces early flowering in Arabidopsis. Biologia plantarum, 56(1), 117-120. doi: 10.1007/s10535-012-0025-2.
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