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Research Abstracts Online
January 2008 - March 2009

University of Minnesota Twin Cities
College of Food, Agricultural, and Natural Resource Sciences
Department of Plant Pathology

PI: Linda L. Kinkel

Microbial Observatory

This project explored the influences of spatial origin, local population and community density, community diversity, microbial nutrient utilization profiles, associated plant species, and carbon and nitrogen inputs on the diversity and intensity of antibiotic activities among soil-borne streptomycetes. In addition, the researchers evaluated the significance of proximity in soil, genetic relatedness, and nutrient use overlap to predicting the potential for individual streptomycete isolates to inhibit one another. Finally, they evaluated the potential effects of different plant species on streptomycete genetic diversity, whole soil microbial diversity, and streptomycete phenotype, including both antibiotic activities and nutrient utilization profiles, in prairie soil. The goal was to develop a comprehensive basis for understanding and predicting the factors that are critical to the generation and maintenance of diversity in antibiotic phenotypes in the soil microbial community, and to identify the relationships between streptomycete, microbial community, and plant species genetic and phenotypic diversity in prairie soil.

Group Members

Matthew G. Bakker, Graduate Student
Atenea Garza, Graduate Student
Dan C. Schlatter, Graduate Student
Patricia Vaz, Graduate Student