数字农科院2.0

Xanthophyll esterases in association with fibrillins control the stable storage of carotenoids in yellow flowers of rapeseed (Brassica juncea)

文献类型： 外文期刊

作者： Li, Rihui;Zeng, Qinyu;Zhang, Xiangxiang;Jing, Jing;Ge, Xiaoyu;Zhao, Lun;Yi, Bin;Tu, Jinxing;Fu, Tingdong;Wen, Jing;Shen, Jinxiong

作者机构：

关键词： Brassica juncea;carotenoid storage;fibrillin;xanthophyll esterase;yellow flower

期刊名称： NEW PHYTOLOGIST

ISSN： 0028-646X

年卷期： 2023 年

页码：

收录情况： SCIE（2023版）

摘要： Biosynthesis, stabilization, and storage of carotenoids are vital processes in plants that collectively contribute to the vibrant colors observed in flowers and fruits. Despite its importance, the carotenoid storage pathway remains poorly understood and lacks thorough characterization.We identified two homologous genes, BjA02.PC1 and BjB04.PC2, belonging to the esterase/lipase/thioesterase (ELT) family of acyltransferases. We showed that BjPCs in association with fibrillin gene BjFBN1b control the stable storage of carotenoids in yellow flowers of Brassica juncea.Through genetic, high-resolution mass spectrometry and transmission electron microscopy analyses, we demonstrated that both BjA02.PC1 and BjB04.PC2 can promote the accumulation of esterified xanthophylls, facilitating the formation of carotenoid-enriched plastoglobules (PGs) and ultimately producing yellow pigments in flowers. The elimination of BjPCs led to the redirection of metabolic flux from xanthophyll ester biosynthesis to lipid biosynthesis, resulting in white flowers for B. juncea. Moreover, we genetically verified the function of two fibrillin genes, BjA01.FBN1b and BjB05.FBN1b, in mediating PG formation and demonstrated that xanthophyll esters must be deposited in PGs for stable storage.These findings identified a previously unknown carotenoid storage pathway that is regulated by BjPCs and BjFBN1b, while offering unique opportunities for improving the stability, deposition, and bioavailability of carotenoids.

分类号：

  • 相关文献

[1]How Exogenous Cadmium Affects Micronutrients A.ccumulation And The Related G ene Expression Regulation In Brassica Juncea. Xie, Deti,Li, Nannan,Li, Shengting,Wang, Shufeng,Li, Nannan,Luo, Feng,Li, Nannan,Li, Nannan. 2018

[2]New host resistances in Brassica napus and Brassica juncea from Australia, China and India: Key to managing Sclerotinia stem rot (Sclerotinia sclerotiorum) without fungicides. Barbetti, M. J.,Li, C. X.,You, M. P.,Barbetti, M. J.,You, M. P.,Banga, S. S.,Banga, S. K.,Sandhu, P. S.,Singh, D.,Singh, R.,Liu, S. Y..

[3]Valuable New Resistances Ensure Improved Management of Sclerotinia Stem Rot (Sclerotinia sclerotiorum) in Horticultural and Oilseed Brassica Species. You, Ming Pei,Uloth, Margaret B.,Barbetti, Martin J.,You, Ming Pei,Uloth, Margaret B.,Barbetti, Martin J.,You, Ming Pei,Barbetti, Martin J.,Li, Xi Xiang,Banga, Surinder S.,Banga, Shashi K..

[4]IDENTITIES AND RELATIONSHIPS AMONG CHINESE VEGETABLE BRASSICAS AS DETERMINED BY RANDOM AMPLIFIED POLYMORPHIC DNA MARKERS. REN, JP,MCFERSON, JR,LI, RG,KRESOVICH, S,LAMBOY, WF.

[5]Genetic diversity in oil and vegetable mustard (Brassica juncea) landraces revealed by SRAP markers. Wu, Xiao-ming,Song, Yunchun,Wu, Xiao-ming,Chen, Bi-yun,Lu, Guangyuan,Wang, Han-zhong,Xu, Kun,Gao Guizhan.

[6]Genome-Wide Analysis of MYB Transcription Factor Gene Superfamily Reveals BjPHL2a Involved in Modulating the Expression of BjCHI1 in Brassica juncea. Chang Gen Xie,Ping Jin,Jiamin Xu,Shangze Li,Tiantian Shi,Rui Wang,Shuangwei Jia,Zixuan Zhang,Weike Guo,Wenfang Hao,Xiaona Zhou,Jun Liu,Ying Gao. 2023

[7]Detection of Clubroot Disease Resistance in Brassica juncea Germplasm at the Seedling Stage. Wenlong Yang,Jiangping Song,Xiaohui Zhang,Chu Xu,Jiaqi Han,Zhijie Li,Yang Wang,Huixia Jia,Haiping Wang. 2024

[8]BjuA03.BNT1 plays a positive role in resistance to clubroot disease in resynthesized Brassica juncea L.. Keqi Li,Kai Wang,Yiji Shi,Fenghao Liang,Xinru Li,Shunjun Bao,Balziya Maratkyzy Yesmagul,Maliha Fatima,Chengyu Yu,Aixia Xu,Xingguo Zhang,Sanxiong Fu,Xue Shi,Xiaoling Dun,Zhaoyong Zhou,Zhen Huang. 2024

作者其他论文 更多>>