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Suppression of postharvest blue mould of apple fruit by Cryptococcus laurentii and N-6-benzyladenine

文献类型： 外文期刊

作者： Yu, Ting 1 ; Wang, Lianping 2 ; Yin, Yun 1 ; Feng, Fengqin 1 ; Zheng, Xiaodong 1 ;

作者机构： 1.Zhejiang Univ, Dept Food Sci & Nutr, Hangzhou 310029, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, Hangzhou 310021, Peoples R China

关键词： apple fruit;biocontrol;blue mould;Cryptococcus laurentii;cytokinin;N-6-benzyladenine;postharvest

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：3.638； 五年影响因子：3.802 ）

ISSN： 0022-5142

年卷期： 2008 年 88 卷 7 期

页码：

收录情况： SCI

摘要： BACKGROUND: Cryptococcus laurentii is a well-known postharvest yeast antagonist. N-6-benzyladenine (6-BA), a cytokinin plant hormone, has a role in retarding ripening and senescence of harvested produce. This study was conducted to evaluate the efficacy of C. laurentii and 6-BA in reducing the blue mould disease of apple fruit. RESULTS: The combination of C. laurentii with 6-BA (20 mu g mL(-1)) was more effective in suppressing the Penicillium expansum infection in apple fruit wounds than C. laurentii alone, although 6-BA (20 mu g mL(-1)) alone neither affected the growth of C. laurentii nor reduced the incidence of the blue mould disease in vivo. Moreover, treatment of apple fruit with C. laurentii and 6-BA (20 mu g mL(-1)) resulted in stimulation of superoxide dismutase activity but in inhibition of the increase in peroxidase activity. CONCLUSION: 6-BA (20 mu g mL(-1)) could enhance the efficacy of C. laurentii in reducing the postharvest blue mould disease of apple fruit, which offered great potential in minimizing the postharvest decay of apple fruit in an integrated pest management strategy. (C) 2008 Society of Chemical Industry.

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