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 PublicationPHYTOCHEMISTRY
ISSN0031-9422
Volume185Pages:112702
AbstractPolar 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.
KeywordArabidopsis thaliana Brassicaceae Polar auxin transport Flovonoids Scutellarin Scutellarein Naringenin Root growth WUS-RELATED HOMEOBOX 5
DOI10.1016/j.phytochem.2021.112702
WOS IDWOS:000639166000017
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/73508
Collection中国科学院昆明植物研究所
Affiliation1.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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