Osmolytes and <i>CsAQP</i> expression jointly influence water physiology in the peel and pulp of orange (<i>Citrus sinensis</i> (L.) Osbeck) fruit during postharvest water loss.

ABSTRACT: Water loss is a serious issue affecting the quality of postharvest horticultural products. Aquaporins (AQPs) regulate the transport of water across biological membranes, along the gradient of water potential, and may play a role in water loss. In this study, matured orange fruits (Citrus sinensis) stored at ambinent temperature (RH 85-95%) for 105 d showed that the weight loss persistently increased, and its rate peaked at 45-60 d and 90-105 d. Both water content and potential were higher in the pulp than in the peel. Water content rose before 60 d, and peel water potential fell with an increased gradient after 60 d. Comparing with peel, osmolytes such as soluble sugar, sucrose, glucose, fructose, and organic acids showed higher accumulation, and their levels were the lowest around

SUBMITTER: Lin X 

PROVIDER: S-EPMC11539049 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature