UV-B Radiation Induces Root Bending Through the Flavonoid-Mediated Auxin Pathway in Arabidopsis

doi:10.3389/fpls.2018.00618

	UV-B Radiation Induces Root Bending Through the Flavonoid-Mediated Auxin Pathway in Arabidopsis
	Xu, Jin 4; Zhou, Huakun3 ; Wang, Wenying 1; Sun, Liangliang 4; Wang, Ruling 4; Zhang, Ping 2,4; Wan, Jinpeng 2,4
刊名	FRONTIERS IN PLANT SCIENCE
	2018-05-17
卷号	9
关键词	Ultraviolet (Uv)-b Root Bending Tropism Auxin Flavonoids
ISSN号	1664-462X
DOI	10.3389/fpls.2018.00618
文献子类	Article
英文摘要	Ultraviolet (UV)-B radiation-induced root bending has been reported, however, the underlying mechanisms largely remain unclear Here, we investigate whether and how auxin and flavonoids are involved in UV-B radiation induced root bending in Arabidopsis using physiological, pharmacological, and genetic approaches UV-B radiation modulated the direction of root growth by decreasing IAA biosynthesis and affecting auxin distribution in the root tips, where reduced auxin accumulation and asymmetric auxin distribution were observed UV-B radiation increased the distribution of auxin on the nonradiated side of the root tips, promoting growth and causing root bending Further analysis indicated that UV-B induced an asymmetric accumulation of flavonoids, this pathway is involved in modulating the accumulation and asymmetric distribution of auxin in root tips and the subsequent redirection of root growth by altering the distribution of auxin carriers in response to UV-B radiation Taken together, our results indicate that UV-B radiation-induced root bending occurred through a flavonoid mediated phototropic response to UV-B radiation.
WOS关键词	PLANT DEVELOPMENT ; AUX/IAA PROTEINS ; TRANSPORT ; GROWTH ; GRAVITROPISM ; EFFLUX ; RESPONSES ; GENES ; LIGHT ; PHOTOTROPISM
WOS研究方向	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000432377100001
资助机构	National Key Research and Development Program of China(2016YFC0501901) ; China National Natural Sciences Foundation(31772383 ; Qinghai innovation platform construction project(2017-ZJ-Y20) ; Yunnan Province Foundation for academic leader(2014HB043) ; 31272239)
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/13814]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
通讯作者	Xu, Jin
作者单位	1.Qinghai Normal Univ, Coll Life Sci, Xining, Qinghai, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Area Qinghai Prov, Xining, Qinghai, Peoples R China 4.Chinese Acad Sci, Key Lab Trop Plant Resources & Sustainable Use, Xishuangbanna Trop Bot Garden, Mengla, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jin,Zhou, Huakun,Wang, Wenying,et al. UV-B Radiation Induces Root Bending Through the Flavonoid-Mediated Auxin Pathway in Arabidopsis[J]. FRONTIERS IN PLANT SCIENCE,2018,9.
APA	Xu, Jin.,Zhou, Huakun.,Wang, Wenying.,Sun, Liangliang.,Wang, Ruling.,...&Wan, Jinpeng.(2018).UV-B Radiation Induces Root Bending Through the Flavonoid-Mediated Auxin Pathway in Arabidopsis.FRONTIERS IN PLANT SCIENCE,9.
MLA	Xu, Jin,et al."UV-B Radiation Induces Root Bending Through the Flavonoid-Mediated Auxin Pathway in Arabidopsis".FRONTIERS IN PLANT SCIENCE 9(2018).