您好，欢迎访问贵州省农业科学院 机构知识库！
贵州省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Largely different contents of terpenoids in beef red-flesh tangerine and its wild type

文献类型： 外文期刊

作者： Li, Wenyun 1 ; Liu, Cuihua 3 ; He, Min 1 ; Li, Jinqiang 2 ; Cai, Yongqiang 2 ; Ma, Yuhua 2 ; Xu, Juan 1 ;

作者机构： 1.Huazhong Agr Univ, Minist Educ, Coll Hort & Forestry, Key Lab Hort Plant Biol, Wuhan 430070, Peoples R China

2.Guizhou Acad Agr Sci, Guizhou Fruit Inst, Guiyang 550006, Guizhou Provinc, Peoples R China

3.Northwest A&F Univ, Coll Hort, Yangling 712100, Shanxi Province, Peoples R China

关键词： Citrus reticulate Blanco;Niurouhong;Terpenoids;Volatile;Carotenoids;Phytohormone;Limonoid aglycones

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.215； 五年影响因子：4.96 ）

ISSN： 1471-2229

年卷期： 2017 年 17 卷

页码：

收录情况： SCI

摘要： Background: Niurouhong (Citrus reticulata Blanco. Niurouhong) (NRH) is a spontaneous beef-red flesh mutant with distinctive flavor compared with its wild type orange-red flesh Zhuhongju (ZHJ). To illustrate the biochemical mechanism of its special flesh color and flavor, fruits at commercial mature stage were used to profile the volatiles in the flavedo and determine the levels of carotenoids, limonoid aglycones and phytohormones in the juice sacs in two seasons. Results: Our results showed the content of total volatile terpenoids in NRH was 1.27-fold that in ZHJ. The components of volatiles were found to be common between the two tangerines. This result indicates that the distinctive flavor of NRH might not be derived from the presence/absence of specific volatiles; instead, it was derived from the altered concentrations or balance of alpha-citral, beta-citral, 2-cyclohexen-1-one, (S)-3-methyl-6-(1-methylethenyl) and n-hexadecanoic acid. Analyses of the contents of total and specific carotenoids indicated that the beef-red color of NRH flesh might be largely attributed to the over accumulation of beta-cryptoxanthin and beta-carotene. However, lower ABA level was found in NRH than in ZHJ, reflecting a possible feedback regulation of ABA biosynthesis on carotenogenesis and the balance in the metabolism among terpenoids. Conclusions: Collectively, our study suggested that the MEP pathway was enhanced in NRH tangerine. However, a certain unknown co-regulatory mechanism might be present in the metabolism pathway of secondary metabolites (especially terpenoids) in beef-red flesh mutant. Our study provides new insights into the regulatory network of terpenoid metabolism and mutation mechanism of red-fleshed citrus.

  • 相关文献

[1]Genome-scale identification of MLO domain-containing genes in soybean (Glycine max L. Merr.). Shen, Qi,Zhao, Jinming,Xiang, Yang,Shen, Qi,Du, Caifu,Xiang, Yang,Qin, Xinrong,Cao, Jinxuan. 2012

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：贵州省农业科学院

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