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Appl Environ Microbiol. 1977 March; 33(3): 522-524
Copyright © 1977 American Society for Microbiology. All Rights Reserved.
Department of Biochemistry and Department of Plant Pathology, The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504
ABSTRACT
The synthesis of kestoses (trisaccharides composed of two fructose units and one glucose unit) by races 0 and 1 of Phytophthora parasitica var. nicotianae is shown. The trisaccharide is found in culture filtrates of isolates grown in liquid media containing 3% sucrose. The utilization of sucrose and trisaccharide formation by the organisms over a 16-day period is described. The kestoses were identified by chemical and enzymatic analysis, and two of three possible isomers were found.
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