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The Changes in Metabolisms of Membrane Lipids and Phenolics Induced by Phomopsis longanae Chi Infection in Association with Pericarp Browning and Disease Occurrence of Postharvest Longan Fruit.
- Source :
-
Journal of agricultural and food chemistry [J Agric Food Chem] 2018 Dec 05; Vol. 66 (48), pp. 12794-12804. Date of Electronic Publication: 2018 Nov 19. - Publication Year :
- 2018
-
Abstract
- This study investigated the changes in metabolisms of membrane lipids and phenolics caused by Phomopsis longanae Chi infection in association with pericarp browning and fruit disease occurrence of postharvest longans. Compared with the uninoculated-longans, the longans inoculated by P. longanae exhibited higher cellular membrane permeability; higher PLD, lipase, and LOX activities; and higher levels of saturated fatty acids (SFAs) and phosphatidic acid but lower levels of phosphatidylinositol, phosphatidylcholine, and unsaturated fatty acids (USFAs). Additionally, the longans inoculated by P. longanae showed higher activities of POD and PPO but a lower amount of total phenolics. These findings suggested that infection of P. longanae enhanced activities of PLD-, lipase-, and LOX- stimulated degradations of membrane lipids and USFAs, which destroyed the integrity of the cell membrane structure, resulting in enzymatic browning by contact of phenolics with POD and PPO, and resulting in reduction of resistance to pathogen infection and accordingly accelerated disease occurrence of postharvest longan fruit.
- Subjects :
- Fruit chemistry
Fruit growth & development
Fruit microbiology
Lipase genetics
Lipase metabolism
Membrane Lipids metabolism
Phenols analysis
Plant Diseases genetics
Plant Proteins genetics
Plant Proteins metabolism
Sapindaceae chemistry
Sapindaceae growth & development
Sapindaceae metabolism
Ascomycota physiology
Fruit metabolism
Membrane Lipids chemistry
Phenols metabolism
Plant Diseases microbiology
Sapindaceae microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 1520-5118
- Volume :
- 66
- Issue :
- 48
- Database :
- MEDLINE
- Journal :
- Journal of agricultural and food chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 30403851
- Full Text :
- https://doi.org/10.1021/acs.jafc.8b04616