Abstract
The utilization of certain amino acids when supplied in three different combinations, (a) glycine, serine, valine, histidine (b) methionine, valine, alanine, arginine (c) leucine, tryptophane, glutamic acid, aspartic acid, byA. nidulans (Eidam)Wint;A. rugulosusThom andRaper;A. variecolor (Berk. andBr.)Thom andRaper;A. quadrilineatusThom andRaper andA. violaceusFennel andRaper was studied through circular partition chromatography. It was found that these Aspergilli which are so closely related morphologically exhibited different rate of assimilation of amino acids. Amino acids in mixtures were utilized better than when supplied singly. Although different species had their own preference to certain amino acids yet there was a simultaneous utilization of both good and poor amino acids.
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