Search for a novel killer toxin in yeast Pichia pastoris
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Published on: December 15, 2017
1Department of Biology, Long Island University, Brooklyn Campus, New York, 11201-8423, USA.
Abstract:
Certain yeast strains secrete a protein toxin, which inhibits the growth of sensitive pathogens and yeasts. Studies have shown that production of the toxin is dependent on presence of linear, double-stranded DNA plasmids in the killer yeasts. In the yeast Pichia pastoris, two linear double-stranded DNA plasmids have been identified. In the present study, the search for toxin-producing capability in P. pastoris has been conducted. No killer activity could be detected when 14 different indicator strains were tested.
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