In:
Frontiers in Nutrition, Frontiers Media SA, Vol. 9 ( 2022-7-19)
Abstract:
As the most abundant phenolic acid in peach fruit, chlorogenic acid (CGA) is an important entry point for the development of natural dietary supplements and functional foods. However, the metabolic and regulation mechanisms underlying its accumulation in peach fruits remain unclear. In this study, we evaluated the composition and content of CGAs in mature fruits of 205 peach cultivars. In peach fruits, three forms of CGA (52.57%), neochlorogenic acid (NCGA, 47.13%), and cryptochlorogenic acid (CCGA, 0.30%) were identified. During the growth and development of peach fruits, the content of CGAs generally showed a trend of rising first and then decreasing. Notably, the contents of quinic acid, shikimic acid, p-coumaroyl quinic acid, and caffeoyl shikimic acid all showed similar dynamic patterns to that of CGA, which might provide the precursor material basis for the accumulation of CGA in the later stage. Moreover, CGA, lignin, and anthocyanins might have a certain correlation and these compounds work together to maintain a dynamic balance. By the comparative transcriptome analysis, 8 structural genes ( Pp4CL , PpCYP98A , and PpHCT ) and 15 regulatory genes ( PpMYB , PpWRKY , PpERF , PpbHLH , and PpWD40 ) were initially screened as candidate genes of CGA biosynthesis. Our findings preliminarily analyzed the metabolic and molecular regulation mechanisms of CGA biosynthesis in peach fruit, which provided a theoretical basis for developing high-CGA content peaches in future breeding programs.
Type of Medium:
Online Resource
ISSN:
2296-861X
DOI:
10.3389/fnut.2022.961626
DOI:
10.3389/fnut.2022.961626.s001
DOI:
10.3389/fnut.2022.961626.s002
DOI:
10.3389/fnut.2022.961626.s003
DOI:
10.3389/fnut.2022.961626.s004
DOI:
10.3389/fnut.2022.961626.s005
DOI:
10.3389/fnut.2022.961626.s006
DOI:
10.3389/fnut.2022.961626.s007
DOI:
10.3389/fnut.2022.961626.s008
DOI:
10.3389/fnut.2022.961626.s009
DOI:
10.3389/fnut.2022.961626.s010
DOI:
10.3389/fnut.2022.961626.s011
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2022
detail.hit.zdb_id:
2776676-7
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