Effects of yeast antagonists in combination with hot water treatment on postharvest diseases of tomatofruit
Yuanyuan Zong, Jia Liu, Boqiang Li, Guozheng Qin and Shiping Tian
Biological Control,Volume 54, Issue 3, September 2010, Pages 316-321
2010
บทคัดย่อ
Hot water treatment (HWT) and two yeast antagonists, Candidaguilliermondii and Pichiamembranaefaciens were investigated separately and together for controlling Botrytiscinerea, and natural infection in tomatofruit stored at 20 °C. Applied separately, both HWT and antagonists inhibited decay caused by B. cinerea, and natural infection. The combination of antagonists and HWT showed better control efficacy. Application of HWT did not affect the growth of C. guilliermondii and P. membranaefaciens in tomatowounds, while HWT induced significant increase in the activities of phenylalanine ammonia-lyase (PAL), chitinase (CHI) and β-1,3-glucanase in fruit. The mechanism by which HWT enhanced the biocontrol efficacy of the antagonistic yeasts may be related to the elicitation of biochemical defense responses in tomatofruit. The combination of antagonistic yeasts and HWT could be a promising method for the control of postharvest diseases of tomatofruit.