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United States Department of Agriculture

Agricultural Research Service

Research Project: MOLECULAR APPROACHES TO ASPERGILLUS FLAVUS ECOLOGY AND CHARACTERIZATION OF COLONIZATION BY NON-TOXIGENIC BIOCONTROL STRAINS
2011 Annual Report


1a.Objectives (from AD-416)
Use Aspergillus molecular techniques to ascertain genotypic variation of native Aspergillus use methodologies to track the success of introduced biocontrol strains. Apply techniques to assess efficacy of competitiveness and establishment of K49 when introduced as a bioplastic formulation.


1b.Approach (from AD-416)
The USDA lab will conduct field trials, isolate and purify representative Aspergillus isolates from soil, corn and other sources. The cooperator will develop genotyping methods to ascertain biotypes of A. flavus present in these populations and use these methods to ascertain the source (Soil, insect or air) of Aspergillus present in infested corn grain. In other studies the ARS will establish field and greenhouse studies to assess the potential for biological control strain K49 to competitively displace toxigenic strains of Aspergillus from soil and corn grain. These studies will establish the efficacy of K49 when applied as various formulations e.g., bioplastic granules.


3.Progress Report

Progress concluded with the 2010 Annual Report. See 2010 Annual Report for last reported progress.


Last Modified: 12/21/2014
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