Os12g0508500
The rice Os12g0508500 was reported as OsbHLH133 in 2012 [1] by researchers from China and Australia.
Contents
Annotated Information
Gene Symbol
- Os12g0508500 <=> OsbHLH133,bHLH133
Function
- OsbHLH133 is a regulator of Fe homeostasis in rice, most likely by negatively regulating Fe transportation from root to shoot.
Phenotypic analysis
- Insertional inactivation of OsbHLH133 (bhlh133) resulted in growth retardation, with enhanced Fe concentration seen in shoots, and reduced Fe concentration in roots.
- Overexpression of OsbHLH133 had the opposite effect, that is resulted in an enhanced Fe concentration in roots and reduced Fe concentration in shoots and also in xylem sap.
- Microarray analysis showed that some of the genes encoding Fe-related functions were up-regulated under Fe-sufficient conditions, in bhlh133 mutant plants compared to wild-type plants.
- Significant differential expression of a number of signalling pathways, including calcium signalling, was also seen in bhlh133 plants compared to wild-type plants, independent of Fe conditions.
Expression
- Fe deficiency specifically induces expression of OsbHLH133
Evolution
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Labs working on this gene
- State Key Laboratory of Plant Physiology and Biochemistry
- Joint Research Laboratory in Genomics and Nutriomics, College of Life Sciences, Zhejiang University, Hangzhou 310058, China,
- Australian Research Council Centre of Excellence in Plant Energy Biology
- Centre for Computational Systems Biology, University of Western Australia, Crawley 6009, Western Australia, Australia
References
- ↑ Wang, L. U., et al. "Identification of OsbHLH133 as a regulator of iron distribution between roots and shoots in Oryza sativa." Plant, cell & environment 36.1 (2013): 224-236.
