Polar auxin transport May Be responsive to specific features of flavonoid structure

doi:10.1016/j.phytochem.2021.112702

KIB OpenIR

	Polar auxin transport May Be responsive to specific features of flavonoid structure
	Zhang,Xudong ; Huang,Xing ; Li,Yan; Tao,Faqing ; Zhao,Qinshi; Li,Weiqi
	2021
Source Publication	PHYTOCHEMISTRY
ISSN	0031-9422
Volume	185 Pages:112702
Abstract	Polar auxin transport (PAT) is essential to control root growth. Flavonoids are widely thought to be PAT inhibitors leading to short root developments. However, we found that the flavonoids scutellarin and scutellarein, which both have a 6-hydroxyl group unlike the structure of known flavonoid-PAT-inhibitors, promote PAT in roots. They increase root length; rescue the short roots induced by the PAT-specific inhibitor TIBA; enhance the expression of the PAT mediators PIN1, PIN2 and AUX1; increase the auxin concentration at the quiescent center; and change the distribution of the meristem organizer WOX5. In contrast, rutin and naringenin, which have no 6-hydroxyl group and have different structural features in B-ring, shows the opposite/no effects. Our evidence suggests that flavonoids with and without a 6-hydroxyl group might result in opposite effects on root growth and thus act as chemical switches in regulating PAT.
Keyword	Arabidopsis thaliana Brassicaceae Polar auxin transport Flovonoids Scutellarin Scutellarein Naringenin Root growth WUS-RELATED HOMEOBOX 5
DOI	10.1016/j.phytochem.2021.112702
WOS ID	WOS:000639166000017
Citation statistics
Document Type	期刊论文
Identifier	http://ir.kib.ac.cn/handle/151853/73508
Collection	中国科学院昆明植物研究所
Affiliation	1.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources West Ch, Kunming 650201, Yunnan, Peoples R China
Recommended Citation GB/T 7714	Zhang,Xudong,Huang,Xing,Li,Yan,et al. Polar auxin transport May Be responsive to specific features of flavonoid structure[J]. PHYTOCHEMISTRY,2021,185:112702.
APA	Zhang,Xudong,Huang,Xing,Li,Yan,Tao,Faqing,Zhao,Qinshi,&Li,Weiqi.(2021).Polar auxin transport May Be responsive to specific features of flavonoid structure.PHYTOCHEMISTRY,185,112702.
MLA	Zhang,Xudong,et al."Polar auxin transport May Be responsive to specific features of flavonoid structure".PHYTOCHEMISTRY 185(2021):112702.

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