您好，欢迎访问浙江省农业科学院 机构知识库！
浙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Regulation of carotenoid metabolism and ABA biosynthesis during blueberry fruit ripening

文献类型： 外文期刊

作者： Li, Xiaobai 1 ; Zhang, Dandan 1 ; Pan, Xuhao 2 ; Kakar, Kaleem Ullah 3 ; Nawaz, Zarqa 3 ;

作者机构： 1.Zhejiang Acad Agr Sci, Hangzhou 310021, Zhejiang, Peoples R China

2.Chinese Acad Agr Sci, Tobacco Res Inst, Qingdao 266101, Shandong, Peoples R China

3.Baluchistan Univ Informat Technol & Management Sci, Quetta, Pakistan

4.Zhejiang Normal Univ, Zhejiang Prov Key Lab Biotechnol Specialty Econ Pl, Jinhua 321004, Peoples R China

关键词： V accinium corymbosum; Carotenoid; Ethylene; ABA; Fruit maturation

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.5； 五年影响因子：6.4 ）

ISSN： 0981-9428

年卷期： 2024 年 206 卷

页码：

收录情况： SCI

摘要： Carotenoids and their derivates play critical physiologic roles in plants. However, these substrates and their metabolism have not been elucidated in fruit of blueberry (Vaccinium corymbosum). In this study, carotenoids and ABA were investigated by LC-MS and their biosynthesis were subject to proteomic analysis during fruit ripening. Activity of CCD1 and NCED1/3 were studied in vivo or in vitro. Also, effects of ethephon and 1-MCP on biosynthesis of carotenoid and ABA were investigated through the expression of corresponding genes using qPCR. As a result, carotenoid biosynthesis was prominently mitigated whereas its metabolism was enhanced during fruit ripening, which resulted in a decrease in the carotenoids. VcCCD1 could both cleave beta-carotene, zeaxanthin and lutein at positions of 9, 10 (9 ', 10 '), which was mainly responsible for the degradation of these carotenoids. Interestingly, in the situation of mitigation of carotenoid biosynthesis, ABA still rapidly accumulated, which was mainly attributed to the upregulated expression of VcNCED1/3. Notably, VcNCED1/3 also showed a cleavage activity of all-trans-zeaxanthin and a stereospecific cleavage activity of 9-cis-carotene to generate C15-carotenal. The C15-carotenal could be potentially converted to ABA through ZEP-independent ABA biosynthetic pathway during blueberry fruit ripening. Similar to a nature natural maturation, ethylene accelerated the carotenoid degradation and ABA biosynthesis trough downregulating the expression of genes in carotenoid biosynthesis and upregulating the expression of genes in ABA biosynthesis. These information help understand the regulation of carotenoids and ABA, and effects of ethylene on the regulation during blueberry fruit ripening.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：浙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台