Salicylic acid reduces the incidence of Phomopsis longanae Chi infection in harvested longan fruit by affecting the energy status and respiratory metabolism

被引：74

作者：

Chen, Yihui ^{[1
]}

Sun, Junzheng ^{[1
]}

Lin, Hetong ^{[1
]}

Lin, Mengshi ^{[2
]}

Lin, Yifen ^{[1
]}

Wang, Hui ^{[1
]}

Hung, Yen-Con ^{[3
]}

机构：

[1] Fujian Agr & Forestry Univ, Coll Food Sci, Inst Postharvest Technol Agr Prod, Fuzhou 350002, Fujian, Peoples R China

[2] Univ Missouri, Div Food Syst & Bioengn, Food Sci Program, Columbia, MO 65211 USA

[3] Univ Georgia, Dept Food Sci & Technol, 1109 Expt St, Griffin, GA 30223 USA

来源：

POSTHARVEST BIOLOGY AND TECHNOLOGY | 2020年 / 160卷

基金：

中国国家自然科学基金;

关键词：

Longan (Dimocarpus longan Lour.) fruit; Phomopsis longanae Chi; Respiration rate; Energy status; Respiration metabolism; Salicylic acid; THEOBROMAE PAT. GRIFF; CHLORINE DIOXIDE TREATMENT; DISEASE DEVELOPMENT; MEMBRANE-LIPIDS; PICHIA-MEMBRANAEFACIENS; PATHWAY METABOLISM; ETHYLENE SYNTHESIS; PROPYL GALLATE; REDOX STATUS; BLUE MOLD;

D O I：

10.1016/j.postharvbio.2019.111035

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

This study investigated the effects of salicylic acid (SA) on the disease development, respiration rate, energy status, and respiratory metabolism in Phomopsis longanae Chi-inoculated longans. SA treatment reduced the fruit disease index and respiration rate of P. longanae-inoculated longans as compared to the fruit with mere inoculation. SA treatment suppressed the decline of energy charge, decreased the activities of PGI, SDH and CCO, but boosted the G-6-PDH+6-PGDH and NADK activities. Meanwhile, the NAD and NADH contents were decreased, but NADP and NADPH contents were increased. These findings demonstrated that SA could be used to the inhibit disease development in harvested longans because SA treatment helped maintain a high energy charge level, decreased respiration rate and respiratory pathways like EMP-TCA cycle and CCP, but increased PPP respiratory pathway. This study indicated that the SA treatment was a facile and effective way to retard the disease development of postharvest longans.

引用

页数：7

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