Effect of Cryptococcus laurentii and calcium chloride on control of Penicillium expansum and Botrytis cinerea infections in pear fruit

详细信息	查看全文 | 推荐本文 |

• 作者：Ting Yu ; Chen Yu ; Huangping Lu ; Mahbuba Zunun ; Fangxia Chen ; Tao Zhou ; Kuang Sheng ; Xiaodong Zheng ; ^{xdzheng@zju.edu.cn}
• 关键词：Cryptococcus laurentii ; Calcium chloride (CaCl2) ; Pear ; Penicillium expansum ; Botrytis cinerea ; Biocontrol ; Postharvest
• 刊名：Biological Control
• 出版年：2012
• 期刊代码：110_10499644
• 类别：abs
• 出版时间：May, 2012
• 卷：61
• 期：1
• 页码：169-175
• 文件大小：438 K

摘要

This study was conducted to evaluate the efficacy of the biocontrol yeast Cryptococcus laurentii and calcium chloride (CaCl₂) in suppressing the blue and gray mold rots in pear fruit wounds and the possible mechanisms involved. The results from the presented investigation showed that combined treatment of pear fruit wounds with C. laurentii and CaCl₂ was a much better approach for inhibition of Penicillium expansum and Botrytis cinerea infections than C. laurentii or CaCl₂ alone. CaCl₂ neither affected the growth of C. laurentii in vitro or in vivo, nor directly inhibited the mold rots in pear fruit. However, CaCl₂ was shown to elicit the fruit resistance to mold rots when the time interval between CaCl₂-treatment and pathogen-inoculation was increased up to 24 h, being associated with an activation of the peroxidase activity of pear fruit. Therefore, it could be proposed that the mechanism by which CaCl₂ reinforced the biocontrol efficacy of C. laurentii was mainly due to its ability to induce the fruit natural resistance.