Os11g0167800

The rice Os11g0167800 was reported as OsAsr1 in 2009 by researchers from Korea.

Annotated Information

Gene Symbol

• Os11g0167800 <=> OsAsr1,Asr1,OsMRP1,MRP1

Function

• OsAsr1' gene play an important role during temperature stress, and that this gene can be used for generating plants with enhanced cold tolerance.

Phenotypic analysis

• For transgenic rice plants that over-expressed full-length OsAsr1 cDNA in the sense orientation, the Fv/Fm values for photosynthetic efficiency were about 2-fold higher than those of wild type-segregating plants after a 24-h cold treatment.
• Seedlings exposed to prolonged low temperatures were more tolerant of cold stress, as demonstrated during wilting and regrowth tests.
• Interestingly,OsAsr1 was highly expressed in transgenic rice plants expressing the C-repeat/dehyhdration responsive element binding factor 1 (`_cN), suggesting the regula-

tion of OsAsr1by CBF1.

Expression

• Low-temperature stress increased mRNA levels of OsAsr1 in both vegetative and reproductive organs.
• In situ analysis showed that OsAsr1 transcript was preferentially accumulated in the leaf mesophyll tissues and parenchyma cells of the palea and lemma.

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Labs working on this gene

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References

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