Microaerophily.

Objections to previous definitions of "anaerobiosis" and "micro-aerophily" are discussed, and a new definition of "micro-aerophily" is proposed. A survey of physiological characteristics of the micro-aerophilic bacterium Campylobacter sputorum spp. bubulus is given, and the concept of "micro-aerophily" is illustrated by the results of a study on the oxygen metabolism and oxygen sensitivity of this bacterium.