Journal
BIOLOGICAL CONTROL
Volume 54, Issue 3, Pages 316-321Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.biocontrol.2010.06.003
Keywords
Hot water treatment; Tomato fruit; Botrytis cinerea; Candida guilliermondii; Pichia membranaefaciens
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Funding
- National Natural Science Foundation of China [30671473]
- Chinese Academy of Sciences [69714G1001]
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Hot water treatment (HWT) and two yeast antagonists, Candida guilliermondii and Pichia membranaefaciens were investigated separately and together for controlling Botrytis cinerea, and natural infection in tomato fruit stored at 20 degrees 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 tomato wounds, while HWT induced significant increase in the activities of phenylalanine ammonia-lyase (PAL), chitinase (CHI) and beta-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 tomato fruit. The combination of antagonistic yeasts and HWT could be a promising method for the control of postharvest diseases of tomato fruit. (C) 2010 Elsevier Inc. All rights reserved.
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