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The effect of e-poly-L-lysine treatment on molecular, physiological and biochemical indicators related to resistance in longan fruit infected by Phomopsis longanae Chi

文献类型: 外文期刊

作者: Sun, Junzheng 1 ; Fan, Zhongqi 1 ; Chen, Yazhen 1 ; Jiang, Yuji 1 ; Lin, Mengshi 4 ; Wang, Hui 1 ; Lin, Yifen 1 ; Chen, Yihui 1 ; Lin, Hetong 1 ;

作者机构: 1.Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Fujian, Peoples R China

2.Fujian Prov Univ, Key Lab Postharvest Biol Subtrop Special Agr Prod, Fuzhou 350002, Fujian, Peoples R China

3.Fujian Acad Agr Sci, Inst Agr Engn Technol, Fuzhou 350003, Fujian, Peoples R China

4.Univ Missouri, Div Food Nutr & Exercise Sci, Food Sci Program, Columbia, MO 65211 USA

关键词: Longan fruit; Induce disease resistance; Transcriptomic analysis; Phenylpropanoid biosynthesis; Plant -pathogen interaction

期刊名称:FOOD CHEMISTRY ( 影响因子:8.8; 五年影响因子:8.6 )

ISSN: 0308-8146

年卷期: 2023 年 416 卷

页码:

收录情况: SCI

摘要: Postharvest longan fruits are subjected to Phomopsis longanae Chi (P. longanae) infection that lead to fruit quality deterioration. We hypothesized that e-poly-L-lysine (e-PL) could enhance fruit disease resistance in longans. Through physiological and transcriptomic analyses, the results showed that, compared to P. longanae-infected longan fruit, e-PL + P. longanae treatment reduced the disease development of longan fruits. Additionally, e-PL + P. longanae treatment increased the contents of disease-resistant substances (lignin and H2O2) and the activities of disease-resistance enzymes (CHI, PAL, PPO, C4H, CAD, GLU, 4CL, and POD). Furthermore, the expressions of genes relevant to the phenylpropanoid biosynthesis pathway and plant-pathogen interaction pathway (Rboh, FLS2, WRKY29, FRK1, and PR1) were up-regulated by e-PL + P. longanae treatment. These findings demonstrated that e-PL treatment inhibited the disease development of postharvest longan fruits were associated with the increased accumulation of disease-resistant related substances, as well as the raised activities and genes ex-pressions of disease-resistance related enzymes.

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