期刊
POSTHARVEST BIOLOGY AND TECHNOLOGY
卷 205, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.postharvbio.2023.112514
关键词
Chinese olive fruit; Disease development; Pestalotiopsis microspore; Respiratory metabolism; Energy metabolism
This study investigated the effect of Pestalotiopsis microspora infection on the development of postharvest disease in Chinese olives, revealing that the infection increases the fruit disease index and respiration rate, decreases the energy charge, and alters the levels of metabolites related to respiratory and energy metabolism. The findings suggest that the infection exacerbates disease development by promoting respiration metabolism and causing energy deficiency.
Pestalotiopsis microspora (P. microspore) is the primary pathogen causing postharvest rot and spoilage in Chinese olive (Canarium album L.). This study investigated P. microspore-induced disease development in postharvest Chinese olives in relation to respiratory and energy metabolism. Results suggested that P. microspore-inoculated Chinese olives had higher fruit disease index, fruit disease diameter, and fruit respiration rate, but a lower energy charge. Furthermore, P. microspore-inoculated Chinese olives displayed higher respiratory metabolism-related enzymes (RMREs) activities, higher levels of NAD(H), and lower levels of NADP(H). Additionally, P. microspore-inoculated Chinese olives had lower ATPase activities, as well as lower ATP and ADP contents but higher AMP content. These findings suggest that P. microspore infection exacerbates disease development in postharvest Chinese olives by increasing respiration metabolism and causing energy deficiency.
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