Narayanan T K, Rao G R
Antimicrob Agents Chemother. 1976 Mar;9(3):375-80. doi: 10.1128/AAC.9.3.375.
Candida spp. grown in synthetic medium supplemented with l-tryptophan as sole nitrogen source produced beta-indoleethanol (beta-IEA) and beta-indolelactic acid (beta-ILA). These compounds isolated from the culture filtrates were characterized by ultraviolet, infrared, and nuclear magnetic resonance spectral studies. Using dl-[(3)H]trypotophan in the medium, labeled beta-IEA and beta-ILA were isolated. Further, beta-IEA was produced as a result incubating log-phase cells of C. albicans with beta-ILA. Both beta-IEA and beta-ILA inhibited the growth of gram-positive and -negative bacteria. Autoantibiotic action of these compounds on Candida spp. and the reversal of this inhibition were studied.
在以L-色氨酸作为唯一氮源的合成培养基中培养的念珠菌属产生了β-吲哚乙醇(β-IEA)和β-吲哚乳酸(β-ILA)。从培养滤液中分离出的这些化合物通过紫外、红外和核磁共振光谱研究进行了表征。在培养基中使用dl-[(3)H]色氨酸,分离出了标记的β-IEA和β-ILA。此外,白色念珠菌的对数期细胞与β-ILA孵育会产生β-IEA。β-IEA和β-ILA均抑制革兰氏阳性和阴性细菌的生长。研究了这些化合物对念珠菌属的自抗生素作用以及这种抑制作用的逆转。