Worrell V E, Nagle D P
Department of Botany and Microbiology, University of Oklahoma, Norman 73019.
J Bacteriol. 1988 Sep;170(9):4420-3. doi: 10.1128/jb.170.9.4420-4423.1988.
Cell extracts of methanogens and the thermoacidophile Sulfolobus solfataricus contained little or no folic acid (pteroylglutamate) or pteroylpolyglutamate activity (less than 0.1 nmol/g [dry weight]). However, the halophile Halobacterium salinarum contained pteroylmono- or pteroyldiglutamates, and Halobacterium volcanii and Halobacterium halobium contained pteroyltriglutamates at levels equivalent to those in eubacteria (greater than 1 nmol/g [dry weight]).
产甲烷菌和嗜热嗜酸菌嗜热栖热菌的细胞提取物中叶酸(蝶酰谷氨酸)或蝶酰多谷氨酸活性很少或没有(低于0.1 nmol/g[干重])。然而,嗜盐菌盐沼盐杆菌含有蝶酰单谷氨酸或蝶酰二谷氨酸,火山嗜盐菌和盐生嗜盐菌含有蝶酰三谷氨酸,其含量与真细菌中的相当(大于1 nmol/g[干重])。