Exploring the differential stages of the pigment metabolism by pre-harvest bagging and post-harvest ethylene de-greening of Eureka lemon peel

PeerJ

article

Anjun Chen¹  Lu Liu¹  Xiaoping Liu¹  Yunyun Fu¹  Jie Li¹  Jianglin Zhao¹  Xiaoyan Hou¹ 

[1] Sichuan Agricultural University

关键词: Chlorophyll degradation;    Carotenoid biosynthetic;    Genes;    Individual carotenoid contents;   

DOI  :  10.7717/peerj.11504

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Pre-harvest bagging or post-harvest ethylene treatments on lemons are commonly applied to change the surface color from green to favorable yellow. In this study, the differential mechanisms of the pigment metabolism by the two treatments were investigated by pigments contents and related genetic expression. The results showed that both treatments reduced the number of chloroplasts and the content of chlorophyll. The differential expression of PSY1 and PSY2 were observed, causing the different accumulation of the main carotenoid phytoene content. The differential expression of NYC resulted in altered contents of chlorophyll a and chlorophyll b, and further led to the difference in a* value. More interestingly, the degradation of chlorophyll uncovered the color of carotenoids, leading to the color changed from green to yellow.

【 授权许可】

CC BY