title: Indole-3-acetic acid enhances the biocontrol of Penicillium expansum and Botrytis cinerea on pear fruit by Cryptococcus laurentii.
abstract: This study evaluated the efficacy of indole-3-acetic acid (IAA) alone or with a biocontrol yeast, Cryptococcus laurentii, in the inhibition of blue and gray mold diseases (Penicillium expansum and Botrytis cinerea) on pear fruit. The results demonstrated that a combination of C. laurentii with IAA at 100 microg mL(-1) was more effective in suppressing blue and gray mold infections on pear fruit than application of C. laurentii alone. IAA alone or with C. laurentii stimulated catalase, peroxidase and polyphenol oxidase activities of pear fruit, indicating that IAA can induce fruit-mediated resistance, although this agent alone had no direct antifungal activity.
authors.affiliation: Department of Food Science and Nutrition, Zhejiang University, Hangzhou, People's Republic of China.
authors.forename: Ting
authors.initials: T
authors.lastname: Yu
authors.forename: Xiao Dong
authors.initials: XD
authors.lastname: Zheng
mesh_terms: D020171:Botrytis / Q000254:growth & development*; D002374:Catalase / Q000378:metabolism; D004156:Catechol Oxidase / Q000378:metabolism; D003454:Cryptococcus / Q000502:physiology*; D005638:Fruit / Q000378:metabolism / Q000382:microbiology; D007210:Indoleacetic Acids / Q000494:pharmacology*; D010407:Penicillium / Q000254:growth & development*; D009195:Peroxidase / Q000378:metabolism; D010572:Pest Control, Biological / Q000379:methods*; D010935:Plant Diseases / Q000382:microbiology*; D031989:Pyrus / Q000201:enzymology
chemical_list: D007210:Indoleacetic Acids; C030737:indoleacetic acid; D004156:Catechol Oxidase; D002374:Catalase; D009195:Peroxidase