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Characterization of ZmCesAs for Secondary Cell Wall Biosynthesis in Maize

文献类型： 外文期刊

作者： Zhang, Yuting 1 ; Wu, Hao 1 ; Li, Xin 1 ; Ge, Yufang 1 ; Lu, Xiaoduo 1 ; Li, Haiyan 1 ;

作者机构： 1.Anhui Agr Univ, Sch Life Sci, Natl Engn Lab Crop Stress Resistance, Hefei 230036, Anhui, 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： Maize; Cellulose; CesA; Secondary cell wall; Molecular network; Marker

期刊名称：JOURNAL OF PLANT BIOLOGY （ 影响因子：2.9； 五年影响因子：2.9 ）

ISSN： 1226-9239

年卷期： 2024 年 67 卷 2 期

页码：

收录情况： SCI

摘要： Plant secondary cell wall provides physical support for upright growth and transportation of water and nutrients. Detailed characterization of the molecular mechanism for SCW biosynthesis would be of great importance for breeding maize varieties. Cellulose, synthesized by the cellulose synthase complex (CSC), composed of cellulose synthase (CesA) proteins, is a main component of plant cell walls. However, CesA genes that are specific for SCW biosynthesis in maize were undefined. In our study, ZmCesA10, 11, and 12 were characterized to be responsible for SCW biosynthesis in maize. ZmCesA10, 11, and 12 interact with each other and are co-expressed in maize culms and roots. Mutants for ZmCesA10, 11, and 12, exhibited an increased culm brittleness, a reduced cell wall thickness, and cellulose content. We concluded that ZmCesA10, 11, and 12 would be markers for the SCW study, and finally this study helps in the construction of the molecular network for SCW biosynthesis in maize.

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