Os04g0583500

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The rice The rice Os02g0187800 was reported as OsEXPA10' in 2016 [1] by researchers from China and Japan.

Annotated Information

Gene Symbol

• Os04g0583500 <=> OsFRDL2,FRDL2

Function

• OsEXPA10 expressed in the root tips is required for the root cell elongation, but that the contribution of this gene to high Al tolerance in rice is small.

Expression

• OsEXPA10 is regulated by a C2H2-type zinc finger transcription factor, ART1 in rice.
• OsEXPA10 was expressed in both the roots and shoots at a similar level, but only the expression in the roots was rapidly up-regulated in response to Al.

*the Al-induced expression was only found in the root tips(0-3 mm), but not in the mature root zones.

Phenotypic analysis

• Knockout of OsEXPA10 resulted in a significant decrease in the cell elongation of the roots in the absence of Al.
• In the presence of Al,knockout of OsEXPA10 did not alter the Al sensitivity evaluated by relative root elongation,but the root cell wall of knockout lines accumulated less Al compared to those of the wild-type rice.

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Labs working on this gene

• State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, ChineseAcademy of Sciences, Nanjing 210008, China
• University of Chinese Academy of Sciences, Beijing 100049, China
• Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki 710-0046, Japan

References

• Che J, Yamaji N, Shen RF, Ma JF. An Al-inducible expansin gene, OsEXPA10 isinvolved in root cell elongation of rice. Plant J. 2016 Oct;88(1):132-142. doi：10.1111/tpj.13237. Epub 2016 Sep 22. PubMed PMID: 27302336.