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OsKinesin-13A Is an Active Microtubule Depolymerase Involved in Glume Length Regulation via Affecting Cell Elongation

文献类型：期刊论文

作者Deng, Zhu Yun; Liu, Ling Tong4; Li, Tang; Yan, Song1; Kuang, Bai Jian; Huang, Shan Jin3; Yan, Chang Jie1; Wang, Tai
刊名SCIENTIFIC REPORTS
出版日期2015
卷号5
ISSN号2045-2322
DOI10.1038/srep09457
文献子类Article
英文摘要Grain size is an important trait influencing both the yield and quality of rice and its major determinant is glume size. However, how glume size is regulated remains largely unknown. Here, we report the characterization of OsKinesin-13A, which regulates cell elongation and glume length in rice. The mutant of OsKinesin-13A, sar1, displayed length reduction in grains and other organs including internodes, leaves and roots. The grain phenotype in sar1 was directly caused by reduction in glume length, which in turn restricted caryopsis size. Histological results revealed that length decrease in sar1 organs resulted from abnormalities in cell elongation. The orientation of cellulose microfibrils was defective in sar1. Consistently, sar1 showed reduced transverse orientation of cortical microtubules. Further observations demonstrated that microtubule turnover was decreased in sar1. OsKinesin-13A was shown to be an active microtubule depolymerase and mainly distributed on vesicles derived from the Golgi apparatus and destined for the cell surface. Thus, our results suggest that OsKinesin-13A utilizes its microtubule depolymerization activity to promote microtubule turnover, which may not only influence transverse orientation of cortical microtubules but also facilitate vesicle transport from the Golgi apparatus to the cell surface, and thus affects cellulose microfibril orientation and cell elongation.
学科主题Multidisciplinary Sciences
出版地LONDON
WOS关键词RICE GRAIN WIDTH ; GOLGI-APPARATUS ; PLASMA-MEMBRANE ; GENE ENCODES ; PROTEIN ; SIZE ; KINESIN ; YIELD ; GROWTH ; ORGANIZATION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000351703700001
出版者NATURE PUBLISHING GROUP
资助机构National Natural Science Foundation of China [31000694] ; Chinese Ministry of Science and Technology [2013CBA01402]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25938]  
专题中科院植物分子生理学重点实验室
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Tsinghua Univ, Sch Life Sci, Beijing 100084, Peoples R China
3.Yangzhou Univ, Coll Agr, Jiangsu Key Lab Crop Genet & Physiol, Key Lab Plant Funct Genom,Minist Educ China, Yangzhou 225009, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Deng, Zhu Yun,Liu, Ling Tong,Li, Tang,et al. OsKinesin-13A Is an Active Microtubule Depolymerase Involved in Glume Length Regulation via Affecting Cell Elongation[J]. SCIENTIFIC REPORTS,2015,5.
APA Deng, Zhu Yun.,Liu, Ling Tong.,Li, Tang.,Yan, Song.,Kuang, Bai Jian.,...&Wang, Tai.(2015).OsKinesin-13A Is an Active Microtubule Depolymerase Involved in Glume Length Regulation via Affecting Cell Elongation.SCIENTIFIC REPORTS,5.
MLA Deng, Zhu Yun,et al."OsKinesin-13A Is an Active Microtubule Depolymerase Involved in Glume Length Regulation via Affecting Cell Elongation".SCIENTIFIC REPORTS 5(2015).

入库方式： OAI收割

来源：植物研究所

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