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Plant Organ Shapes Are Regulated by Protein Interactions and Associations With Microtubules

文献类型： 外文期刊

作者： Lazzaro, Mark D. 1 ; Wu, Shan 3 ; Snouffer, Ashley 2 ; Wang, Yanping 4 ; van der Knaap, Esther 2 ;

作者机构： 1.Coll Charleston, Dept Biol, Charleston, SC 29424 USA

2.Univ Georgia, Ctr Appl Genet Technol, Athens, GA 30602 USA

3.Cornell Univ, Boyce Thompson Inst, Ithaca, NY USA

4.Beijing Acad Agr & Forestry Sci, Natl Engn Res Ctr Vegetables, Beijing, Peoples R China

5.Univ Georgia, Inst Plant Breeding Genet & Genom, Athens, GA 30602 USA

6.Univ Georgia, Dept Hort, Athens, GA 30602 USA

关键词： OFP; TRM; SUN; IQD; microtubules; organ shape

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2018 年 9 卷

页码：

收录情况： SCI

摘要： Plant organ shape is determined by the spatial-temporal expression of genes that control the direction and rate of cell division and expansion, as well as the mechanical constraints provided by the rigid cell walls and surrounding cells. Despite the importance of organ morphology during the plant life cycle, the interplay of patterning genes with these mechanical constraints and the cytoskeleton is poorly understood. Shapes of harvestable plant organs such as fruits, leaves, seeds and tubers vary dramatically among, and within crop plants. Years of selection have led to the accumulation of mutations in genes regulating organ shapes, allowing us to identify new genetic and molecular components controlling morphology as well as the interactions among the proteins. Using tomato as a model, we discuss the interaction of Ovate Family Proteins (OFPs) with a subset of TONNEAU1-recruiting motif family of proteins (TRMs) as a part of the protein network that appears to be required for interactions with the microtubules leading to coordinated multicellular growth in plants. In addition, SUN and other members of the IQD family also exert their effects on organ shape by interacting with microtubules. In this review, we aim to illuminate the probable mechanistic aspects of organ growth mediated by OFP-TRM and SUN/IQD via their interactions with the cytoskeleton.

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