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United States Department of Agriculture

Agricultural Research Service

Research Project: MANAGEMENT AND GENETIC CHARACTERIZATION OF AGRICULTURAL AND BIOTECHNOLOGICAL MICROBIAL RESOURCES

Location: Bacterial Foodborne Pathogens & Mycology Research Unit

Title: The use of yeast genetic diversity for agricultural and biotechnological applications

Author
item KURTZMAN, CLETUS

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: May 2, 2013
Publication Date: May 2, 2013
Citation: Kurtzman, C.P. 2013. The use of yeast genetic diversity for agricultural and biotechnological applications [abstract].

Technical Abstract: Many types of yeast have been shown to be effective for biocontrol of field, greenhouse, and storage diseases of agricultural crops. Yeasts are generally regarded as safe for a wide variety of applications and some species establish large populations on leaf and fruit surfaces, resulting in disease control through competitive exclusion of pathogens. Yeasts that are used for biocontrol include ascomycetes assigned to the subphylum Saccharomycotina, dimorphic ascomycetes that are members of the subphylum Pezizomycotina and species classified in various subphyla of the Basidiomycota. This great diversity of species presents a challenge for identification, which must be correct to ensure product safety as well as to protect intellectual property. Over the past decade, all described yeasts have received a barcode through use of diagnostic gene sequences resulting in far more accurate strain identification than is possible from phenotypic characterization. Phylogenetic relationships determined from gene sequence analysis can be used to predict which species may be effective for biocontrol and for other biotechnological applications. Relationships among biocontrol species will be discussed and examples of phylogenetic predictions for discovery of biotechnological applications will be presented.

Last Modified: 7/25/2014