Transcriptomics Reveals the ERF2-bHLH2-CML5 Module Responses to H₂S and ROS in Postharvest Calcium Deficiency Apples.

ABSTRACT: Calcium deficiency usually causes accelerated quality deterioration in postharvest fruit, whereas the underlining mechanism is still unclear. Here, we report that calcium deficiency induced the development of bitter pit on the surface of apple peels compared with the healthy appearance in control apples during postharvest storage. Physiological analysis indicates that calcium-deficient peels contained higher levels of superoxide anion (O₂^•-), malondialdehyde (MDA), total phenol, flavonoid contents and polyphenol oxidase (PPO) activity, and reduced calcium, H₂S production, anthocyanin, soluble protein content, and peroxidase (POD) activity compared with those in calcium-sufficient peels. The principal component analysis (PCA) results show that calcium conten

SUBMITTER: Sun HY 

PROVIDER: S-EPMC8657956 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature