White R H
Department of Biochemistry and Nutrition, Virginia Polytechnic Institute, State University, Blacksburg 24061.
J Bacteriol. 1987 Dec;169(12):5859-60. doi: 10.1128/jb.169.12.5859-5860.1987.
Indole-3-acetic acid (IAA) and 2-(indol-3-ylmethyl)indol-3-yl acetic acid were identified in lipid extracts of Sulfolobus acidocaldarius; they occurred at concentrations of 0.57 and 0.59 mumol/g (dry weight), respectively. The amount of IAA found in these cells is more than a thousand times greater than that found in a typical extract of a plant in which IAA serves as a plant growth hormone. Neither of these compounds was detected in the other archaebacteria that were analyzed; these included Sulfolobus sulfataricus, Halobacterium salinarium, and several strains of methanogenic bacteria. This is the first report of the natural occurrence of 2-(indol-3-ylmethyl)indol-3-yl acetic acid.
在嗜酸热硫化叶菌的脂质提取物中鉴定出了吲哚 - 3 - 乙酸(IAA)和2 - (吲哚 - 3 - 基甲基)吲哚 - 3 - 基乙酸;它们的浓度分别为0.57和0.59 μmol/g(干重)。在这些细胞中发现的IAA量比在典型植物提取物中发现的量高出一千多倍,在植物中IAA作为植物生长激素。在分析的其他古细菌中均未检测到这两种化合物;这些古细菌包括嗜热栖热菌、盐生盐杆菌和几株产甲烷菌。这是关于2 - (吲哚 - 3 - 基甲基)吲哚 - 3 - 基乙酸自然存在的首次报道。