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Arabidopsis AGC protein kinases IREH1 and IRE3 control root skewing

作 者:Yue XZ, Guo ZA, Shi T, Song LZ, Cheng YF*
影响因子: 4.65
刊物名称: Journal of Genetics and Genomics
出版年份: 2019
卷: 46  期: 5   页码: 259-267

文章摘要 : 

AGC protein kinases play important roles in plant growth and development. Several AGC kinases in Arabidopsis have been functionally characterized. However, the “AGC Other” subfamily, including IRE, IREH1, IRE3 and IRE4, has not been well understood. Here, we reported that ireh1 mutants displayed a root skewing phenotype, which can be enhanced by ire3 mutation. IREH1 and IRE3 were expressed in roots, consistent with their function in controlling root skewing. The fluorescence intensities of the microtubule marker KNpro:EGFP-MBD were decreased in ireh1ire3and ireh1 ire3 mutants compared to wild type. The microtubule arrangements in ireh1 and ireh1 ire3 mutants were also altered. IREH1 physically interacted with IRE3 in vitro and in planta. Thus, our findings demonstrate that IREH1 and IRE3 protein kinases play important roles in controlling root skewing, and maintaining microtubule network in Arabidopsis.


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