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	Arabidopsis asa1 is important for jasmonate-mediated regulation of auxin biosynthesis and transport during lateral root formation
	Sun, Jiaqiang1,2; Xu, Yingxiu1,3; Ye, Songqing4; Jiang, Hongling1; Chen, Qian1,2,3; Liu, Fang1,2,3; Zhou, Wenkun1,3; Chen, Rong1,2,3; Li, Xugang2,5,6; Tietz, Olaf2,5,6
刊名	Plant cell
	2009-05-01
卷号	21期号:5页码:1495-1511
ISSN号	1040-4651
DOI	10.1105/tpc.108.064303
通讯作者	Li, chuanyou(cyli@genetics.ac.cn)
英文摘要	Plant roots show an impressive degree of plasticity in adapting their branching patterns to ever-changing growth conditions. an important mechanism underlying this adaptation ability is the interaction between hormonal and developmental signals. here, we analyze the interaction of jasmonate with auxin to regulate lateral root (lr) formation through characterization of an arabidopsis thaliana mutant, jasmonate-induced defective lateral wroot1 (jdl1/asa1-1). we demonstrate that, whereas exogenous jasmonate promotes lr formation in wild-type plants, it represses lr formation in jdl1/asa1-1. jdl1 encodes the auxin biosynthetic gene anthranilate synthase alpha 1 (asa1), which is required for jasmonate-induced auxin biosynthesis. jasmonate elevates local auxin accumulation in the basal meristem of wild-type roots but reduces local auxin accumulation in the basal meristem of mutant roots, suggesting that, in addition to activating asa1-dependent auxin biosynthesis, jasmonate also affects auxin transport. indeed, jasmonate modifies the expression of auxin transport genes in an asa1-dependent manner. we further provide evidence showing that the action mechanism of jasmonate to regulate lr formation through asa1 differs from that of ethylene. our results highlight the importance of asa1 in jasmonate-induced auxin biosynthesis and reveal a role for jasmonate in the attenuation of auxin transport in the root and the fine-tuning of local auxin distribution in the root basal meristem.
WOS关键词	TRYPTOPHAN BIOSYNTHESIS ; FOUNDER CELLS ; HIGHER-PLANTS ; THALIANA ; ETHYLENE ; GROWTH ; INITIATION ; GENE ; PIN ; PATHWAY
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
WOS类目	Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
语种	英语
出版者	AMER SOC PLANT BIOLOGISTS
WOS记录号	WOS:000268068300010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2401847
专题	中国科学院大学
通讯作者	Li, Chuanyou
作者单位	1.Chinese Acad Sci, State Key Lab Plant Genom, Natl Ctr Plant Gene Res, Inst Genet & Dev Biol, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Genet & Dev Biol, Chinese German Joint Grp Plant Hormone Res, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 4.Univ Minnesota, Dept Hort Sci, Microbial & Plant Genom Inst, St Paul, MN 55108 USA 5.Univ Freiburg, Inst Biol Bot 2, D-79104 Freiburg, Germany 6.Univ Freiburg, Freiburg Inst Adv Sci, Fac Biol, D-79104 Freiburg, Germany
推荐引用方式 GB/T 7714	Sun, Jiaqiang,Xu, Yingxiu,Ye, Songqing,et al. Arabidopsis asa1 is important for jasmonate-mediated regulation of auxin biosynthesis and transport during lateral root formation[J]. Plant cell,2009,21(5):1495-1511.
APA	Sun, Jiaqiang.,Xu, Yingxiu.,Ye, Songqing.,Jiang, Hongling.,Chen, Qian.,...&Li, Chuanyou.(2009).Arabidopsis asa1 is important for jasmonate-mediated regulation of auxin biosynthesis and transport during lateral root formation.Plant cell,21(5),1495-1511.
MLA	Sun, Jiaqiang,et al."Arabidopsis asa1 is important for jasmonate-mediated regulation of auxin biosynthesis and transport during lateral root formation".Plant cell 21.5(2009):1495-1511.

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