Lignin and Quercetin Synthesis Underlies Berry Russeting in ‘Sunshine Muscat’ Grape

Biomolecules

Yan Huang¹  Hui Xia¹  Li-Jin Lin¹  Jin Wang¹  Xiu-Lan Lv¹  Dong Liang¹ 

[1] Institute of Pomology and Olericulture, Sichuan Agricultural University, Huimin road 211, Wenjiang district, Chengdu 611130, China;

关键词: phenylpropane synthesis;    lignin;    quercetin;    russet;   

DOI  :  10.3390/biom10050690

来源: DOAJ

【 摘 要 】

In order to further explore the mechanism of ‘sunshine muscat’ grape russet formation, transcriptomic and metabolomic analyses were performed on ‘sunshine muscat’ grape peels with and without russet. A total of 1491 differentially expressed genes (DEGs) were discovered based on these analyses. The phenylpropane synthesis pathway was the key metabolic pathway identified, and 28 DEGs related to phenylpropane synthesis pathway were screened, of which 16 were related to lignin synthesis. In addition, 60 differential metabolites were screened. There were 29 phenolic substances among the differential metabolites, which were all up-regulated and 10 were quercetin-related glycosides. Our results indicate that phenols likely play a dominant role in the formation of ‘sunshine muscat’ grape russet, and the synthesis of lignin and quercetin may be the key factors underlying russet formation.

【 授权许可】

Unknown