Clark Darren A, Norris Paul R
Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK.
Microbiology (Reading). 1996 Apr;142(4):785-790. doi: 10.1099/00221287-142-4-785.
A new species of ferrous-iron-oxidizing, moderately thermophilic, acidophilic bacteria, , has been described. Two isolates of the species differed only in the tendency of one, previously known as strain TH3, to grow in filaments. The chromosomal DNA base composition is between 67 and 69 mol% G + C. The capacity of this species to fix CO from air was greater than that of iron-oxidizing thermoacidophiles of the genus , which required an enhanced CO concentration for optimum autotrophic growth. Under air, ferrous iron oxidation in mixed cultures of with either or was more extensive than in pure cultures of these three strains. The greater part of ferrous iron oxidation in mixed cultures probably resulted from activity of the species, which possess a greater tolerance of ferric iron, and which presumably grew mixotrophically utilizing organic compounds from .
已描述了一种新的亚铁氧化、中度嗜热、嗜酸细菌物种 。该物种的两个分离株仅在其中一个（先前称为TH3菌株）形成丝状生长的倾向上有所不同。染色体DNA的碱基组成在67至69摩尔%的G + C之间。该物种从空气中固定CO₂的能力大于 属的铁氧化嗜热嗜酸菌，后者需要提高CO₂浓度才能实现最佳自养生长。在空气中， 与 或 的混合培养物中亚铁氧化比这三种菌株的纯培养物中更广泛。混合培养物中亚铁氧化的大部分可能是由于 物种的活性，该物种对三价铁具有更高的耐受性，并且可能利用来自 的有机化合物进行兼性营养生长。
