Lucine-rich-repeat receptor-like kinases (LRR-RLKs) are known to function in various signaling pathways in plants. Our previous study suggested a role for a soybean LRR-RLK, GmSARK, in regulating leaf senescence. Because constitutive expression of GmSARK leads to lethality, we used a dexamethasone (DEX)-inducible transcription system to control the expression of GmSARK in Arabidopsis thaliana. Applying DEX to the transgenic plants effectively induced the overexpression of GmSARK, thus leading to marked growth inhibition and leaf senescence. Interestingly, exogenous cytokinin (6-BA) repressed the expression of GmSARK in the transgenic lines, yet failed to restore the severe phenotypes.
Fan Xu;Pengli Li;Baoyan An;Lingling Yuan;Tao Meng;Huiqin Yue;Ningning Wang*
. Analysis of Transgenic Plants Expressing Soybean Receptor-like Kinase GmSARK Driven by an Inducible Promoter[J]. Chinese Bulletin of Botany, 2010
, 45(02)
: 149
-156
.
DOI: 10.3969/j.issn.1674-3466.2010.02.002
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