文献类型： 外文期刊
作者： Li, Haiyan 1 ; Li, Xin 1 ; Lu, Xiaoduo 1 ;
作者机构： 1.Anhui Agr Univ, Sch Life Sci, Natl Engn Lab Crop Stress Resistance, Hefei 230036, Peoples R China
2.Qilu Normal Univ, Inst Adv Agr Technol, Jinan 250200, Peoples R China
3.Hainan Acad Agr Sci, Lab Mol Breeding Design Maize Sanya Inst, Sanya 572000, Peoples R China
关键词： drought-sensitivity like; maize; microtubule; receptor-like cytoplasmic kinase; secondary cell wall
期刊名称：PLANT JOURNAL （ 影响因子：5.7； 五年影响因子：7.0 ）
ISSN： 0960-7412
年卷期： 2025 年 123 卷 1 期
页码：
收录情况： SCI
摘要： The secondary cell wall (SCW) is essential for providing mechanical strength to plants, enabling upright growth and facilitating the long-distance transport of water and nutrients through the vascular system. In this study, we generated an EMS-induced mutant library in B73 maize and identified two "drought-sensitive like" mutants, rlck1-1 and rlck1-2, which exhibited impaired function of ZmRLCK1. This gene encodes a predicted receptor-like cytoplasmic kinase with kinase activity. Phenotypic analysis revealed that ZmRLCK1 mutation disrupted metaxylem vessel development, likely compromising upward water transport. Additionally, the mutants displayed aberrant microtubule organization, suggesting a role for ZmRLCK1 in cytoskeletal regulation. Differential phosphoproteomic sequencing identified several microtubule-associated proteins as potential substrates of ZmRLCK1, though the exact molecular mechanisms linking ZmRLCK1-mediated phosphorylation to microtubule dynamics remain to be fully elucidated.
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