Abstract
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.
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Abbreviations
- cPTIO:
-
2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide
- SNP:
-
sodium nitroprusside
- CO :
-
CONSTANS
- FT :
-
FLOWERING LOCUS T
- FLC :
-
FLOWERING LOCUS C
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Acknowledgements
This research was supported by the Science and Technology Department of Qinghai Province Program (2010-H-809), the Chunhui Plan of Ministry of Education Foundation (Z2009-1-81010), the National Major Special Project on New Varieties Cultivation for Transgenic Organisms (Grant No. 2009ZX08009-130B), and the National Basic Research Program of China (2009CB118305). W.Y. WANG and J. XU contributed equally to this work.
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Wang, W.Y., Xu, J., Liu, X.J. et al. Cadmium induces early flowering in Arabidopsis . Biol Plant 56, 117–120 (2012). https://doi.org/10.1007/s10535-012-0025-2
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DOI: https://doi.org/10.1007/s10535-012-0025-2