Imhoff Johannes F, Rahn Tanja, Künzel Sven, Neulinger Sven C
GEOMAR Helmholtz Center for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany.
Max Planck Institut für Evolutionsbiologie, 24306, Plön, Germany.
Arch Microbiol. 2018 Aug;200(6):847-857. doi: 10.1007/s00203-018-1489-z. Epub 2018 Feb 8.
Rhodopila globiformis: is the most acidophilic anaerobic anoxygenic phototrophic purple bacterium and was isolated from a warm acidic sulfur spring in Yellowstone Park. Its genome is larger than genomes of other phototrophic purple bacteria, containing 7248 Mb with a G + C content of 67.1% and 6749 protein coding and 53 RNA genes. The genome revealed some previously unknown properties such as the presence of two sets of structural genes pufLMC for the photosynthetic reaction center genes and two types of nitrogenases (Mo-Fe and V-Fe nitrogenase), capabilities of autotrophic carbon dioxide fixation and denitrification using nitrite. Rhodopila globiformis assimilates sulfate and utilizes the C1 carbon substrates CO and methanol and a number of organic compounds, in particular, sugars and aromatic compounds. It is among the few purple bacteria containing a large number of pyrroloquinoline quinone-dependent dehydrogenases. It has extended capacities to resist stress by heavy metals, demonstrates different resistance mechanisms to antibiotics, and employs several toxin/antitoxin systems.
是最嗜酸的厌氧不产氧光合紫色细菌，从黄石公园的一个温暖酸性硫磺泉中分离得到。其基因组比其他光合紫色细菌的基因组更大，包含7248兆碱基对，G+C含量为67.1%，有6749个蛋白质编码基因和53个RNA基因。该基因组显示出一些以前未知的特性，例如存在两组用于光合反应中心基因的结构基因pufLMC和两种类型的固氮酶（钼铁和钒铁固氮酶），具有自养二氧化碳固定和利用亚硝酸盐进行反硝化的能力。球形红嗜热菌同化硫酸盐并利用C1碳底物一氧化碳和甲醇以及许多有机化合物，特别是糖类和芳香族化合物。它是少数含有大量吡咯喹啉醌依赖性脱氢酶的紫色细菌之一。它具有增强的抗重金属胁迫能力，表现出对抗生素的不同抗性机制，并采用多种毒素/抗毒素系统。
