文献类型： 外文期刊
第一作者： Zhang, Qiaocai
作者： Zhang, Qiaocai;Li, Wenhui;Han, Xiongde;Song, Zunyang;Shi, Jingying;Wu, Bin;Wu, Bin
作者机构：
关键词： Peach fruit; Monilinia fructicola; Plant glycerol; Induced disease resistance
期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.7； 五年影响因子：2.9 ）
ISSN： 0885-5765
年卷期： 2024 年 129 卷
页码：
收录情况： SCI
摘要： Peach fruit is susceptible to fungal contamination during postharvest storage and logistics. Brown rot resulting from Monilinia fructicola infection is one serious disease. Plant glycerol, a natural biodegradable sugar alcohol, can restrain several plant diseases. The inhibitory effect and its mechanism of plant glycerol treatment on brown rot of peach fruit were studied in current study. The findings revealed that 50 mg/g plant glycerol combined with 0.02 % Silwet L-77 surfactant could effectively delay the onset of brown rot caused by M. fructicola. But no concentrations of plant glycerol had significant inhibitory effect on sporangium germination and mycelium growth of M. fructicola. The activities of beta-1,3-glucanase (GNS) and chitinase (CHI), the gene relative expression of beta-1,3-glucanase (PpGNS), chitinase (PpCHI), pathogenesis-related gene 1 (PpPR1) and nonexpresser of pathogenesis -related gene 1 (PpNPR1) and salicylic acid (SA) content were markedly promoted by plant glycerol treatment. The contents of O-2(-), H2O2 and oleic acid were significantly repressed, but the activities of superoxide dismutase (SOD) and peroxidase (POD) and the expressions of glycerol kinase 1 (PpGLI1) and glycerol triphosphate dehydrogenase (PpGPDH) were significantly improved. Plant glycerol treatment could induce disease resistance through systemic acquired resistance (SAR) in peach fruit, which might be related to improving the synthesis of poly-unsaturated fatty acids. Therefore, plant glycerol treatment is effective on inhibiting brown rot development and possesses potential application in postharvest peach fruit.
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