好氧条件对属于不同分类群的严格厌氧微生物(梭菌,产乙酸细菌,乳酸菌,类细菌,硫酸盐还原细菌,和产甲烷古细菌),并且它们的耐氧性有很大不同,强调空气耐受性在厌氧菌生态学中的作用。考虑了用于厌氧菌培养的营养培养基的成分,它可以减少氧气的毒性作用,并大大有助于严格厌氧微生物的工业培养物的维护和储存。描述了生理和生化因素,解释了许多严格的厌氧菌对氧的相对抗性和其不完全还原的产物。特别注意抗氧化防御酶的调节,在氧引起的氧化应激条件下,在严格厌氧菌的细胞中运行,超氧阴离子,或过氧化氢。
Effects of aerobic conditions on strictly anaerobic microorganisms belonging to diverse taxa (clostridia, acetogenic bacteria, lactic acid bacteria, bacteroids, sulfate-reducing bacteria, and methanogenic archaea) and differing considerably in their oxygen resistance have been reviewed, with emphasis on the role of aerotolerance in the ecology of anaerobes. Consideration is given to components of nutritive media for anaerobe culturing, which decrease the toxic effects of oxygen and there by contribute significantly to maintenance and storage of industrial cultures of strictly anaerobic microorganisms. Physiological and biochemical factors are described, accounting for the relative resistance of many strict anaerobes to oxygen and products of incomplete reduction thereof. Specific attention is given to regulation of enzymes of antioxidative defense, operating in the cells of strict anaerobes under the conditions of oxidative stress caused by oxygen, superoxide anion, or hydrogen peroxide.