Acidophilic actinomycetes, growing between pH 3.5 and 6.5, were isolated from 17 natural soils and mine wastes. Most isolates were Streptomyces spp. and selected ones were compared with some established neutrophilic species by assessment of overall similarity. Acidophilic and neutrophilic strains clustered separately, differing in a number of cultural and physiological characters, in addition to pH requirements. The possible importance of acidophilic actinomycetes in soil is discussed. © 1975.
Khan, M. R., & Williams, S. T. (1975). Studies on the ecology of actinomycetes in soil-VIII. Distribution and characteristics of acidophilic actinomycetes. Soil Biology and Biochemistry, 7(6), 345–348. https://doi.org/10.1016/0038-0717(75)90047-4