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Enhancement of Biocontrol Efficacy of Pichia carribbica to Postharvest Diseases of Strawberries by Addition of Trehalose to the Growth Medium

机译:通过在生长培养基中添加海藻糖来增强毕赤酵母对草莓采后病的生物防治功效

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摘要

The effects of trehalose on the antagonistic activity of Pichia caribbica against Rhizopus decay and gray mold decay of strawberries and the possible mechanisms involved were investigated. The proteomic analysis and comparison of P. carribbica in response to trehalose was analyzed based on two-dimensional gel electrophoresis. The antagonistic activity of P. carribbica harvested from the culture media of NYDB amended with trehalose at 0.5% was improved greatly compared with that without trehalose. The PPO (Polyphenoloxidase) and POD (Peroxidase) activity of strawberries treated with P. carribbica cultured in the NYDB media amended with trehalose at 0.5% was higher than that of the strawberries treated with P. carribbica harvested from NYDB. The β-1, 3-glucanase activity of strawberries treated with P. carribbica cultured in the NYDB media amended with trehalose at 0.5% was also higher than that of the strawberries treated with P. carribbica harvested from NYDB and the control. Several differentially expressed proteins of P. carribbica in response to trehalose were identified in the cellular proteome, most of them were related to basic metabolism.
机译:研究了海藻糖对加勒比毕赤酵母对草莓根霉腐烂和灰霉病腐烂的拮抗作用,并探讨了可能的机制。基于二维凝胶电泳分析了加勒比海假单胞菌响应海藻糖的蛋白质组学分析和比较。与未添加海藻糖相比,从改良有0.5%海藻糖的NYDB培养基中收获的加勒比假单胞菌的拮抗活性大大提高。在以0.5%的海藻糖改良的NYDB培养基中培养的Carribbica处理的草莓的PPO(多酚氧化酶)和POD(Peroxidase)活性高于从NYDB收获的Carribbica处理的草莓的PPO(多酚氧化酶)和POD(过氧化物酶)活性。在以0.5%的海藻糖改良的NYDB培养基中培养的假单胞菌处理的草莓的β-1、3-葡聚糖酶活性也高于从NYDB和对照中收获的假单胞菌处理的草莓的β-1、3-葡聚糖酶活性。在细胞蛋白质组中鉴定了几种对海藻糖有响应的加勒比假单胞菌差异表达蛋白,其中大多数与基本代谢有关。

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