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EXO70A1-Mediated Vesicle Trafficking Is Critical for Tracheary Element Development in Arabidopsis

文献类型：期刊论文

作者Li, Shipeng4; Chen, Min2; Yu, Dali4; Ren, Shichao; Sun, Shufeng6; Liu, Linde1; Ketelaar, Tijs; Emons, Anne-Mie C.; Liu, Chun-Ming
刊名PLANT CELL
出版日期2013
卷号25期号:5页码:1774-1786
ISSN号1040-4651
DOI10.1105/tpc.113.112144
文献子类Article
英文摘要Exocysts are highly conserved octameric complexes that play an essential role in the tethering of Golgi-derived vesicles to target membranes in eukaryotic organisms. Genes encoding the EXO70 subunit are highly duplicated in plants. Based on expression analyses, we proposed previously that individual EXO70 members may provide the exocyst with functional specificity to regulate cell type-or cargo-specific exocytosis, although direct evidence is not available. Here, we show that, as a gene expressed primarily during tracheary element (TE) development, EXO70A1 regulates vesicle trafficking in TE differentiation in Arabidopsis thaliana. Mutations of EXO70A1 led to aberrant xylem development, producing dwarfed and nearly sterile plants with very low fertility, reduced cell expansion, and decreased water potential and hydraulic transport. Grafting of a mutant shoot onto wild-type rootstock rescued most of these aboveground phenotypes, while grafting of a wild-type shoot to the mutant rootstock did not rescue the short root hair phenotype, consistent with the role of TEs in hydraulic transport from roots to shoots. Histological analyses revealed an altered pattern of secondary cell wall thickening and accumulation of large membrane-bound compartments specifically in developing TEs of the mutant. We thus propose that EXO70A1 functions in vesicle trafficking in TEs to regulate patterned secondary cell wall thickening.
学科主题Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
出版地ROCKVILLE
WOS关键词VASCULAR-RELATED NAC-DOMAIN7 ; XYLEM VESSEL FORMATION ; EXOCYST COMPLEX ; PLASMA-MEMBRANE ; CELL-GROWTH ; DIFFERENTIATION ; EXOCYTOSIS ; GENES ; EXPRESSION ; TRANSPORT
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000321035800023
出版者AMER SOC PLANT BIOLOGISTS
资助机构National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Ministry of Science and Technology, China(Ministry of Science and Technology, ChinaMinistry of Science, ICT & Future Planning, Republic of Korea) ; Chinese Academy of Sciences(Chinese Academy of Sciences) ; Wageningen University ; Shandong Natural Science Foundation(Natural Science Foundation of Shandong Province)
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28121]  
专题中科院植物分子生理学重点实验室
作者单位1.Shandong Normal Univ, Coll Life Sci, Jinan 250014, Peoples R China
2.Chinese Acad Sci, Inst Biophys, Beijing 100101, Peoples R China
3.Ludong Univ, Coll Life Sci, Yantai 264025, Peoples R China
4.Li, Shipeng; Ketelaar, Tijs; Emons, Anne-Mie C.] Wageningen Univ, Cell Biol Lab, NL-6708 PB Wageningen, Netherlands
5.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
6.Qilu Normal Univ, Dept Life Sci, Jinan 250013, Peoples R China
推荐引用方式
GB/T 7714		 Li, Shipeng,Chen, Min,Yu, Dali,et al. EXO70A1-Mediated Vesicle Trafficking Is Critical for Tracheary Element Development in Arabidopsis[J]. PLANT CELL,2013,25(5):1774-1786.
APA Li, Shipeng.,Chen, Min.,Yu, Dali.,Ren, Shichao.,Sun, Shufeng.,...&Liu, Chun-Ming.(2013).EXO70A1-Mediated Vesicle Trafficking Is Critical for Tracheary Element Development in Arabidopsis.PLANT CELL,25(5),1774-1786.
MLA Li, Shipeng,et al."EXO70A1-Mediated Vesicle Trafficking Is Critical for Tracheary Element Development in Arabidopsis".PLANT CELL 25.5(2013):1774-1786.

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来源：植物研究所

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