title: [Growth and morphological differentiation of acidophilic and neutrophilic soil streptomyces].
abstract: Acidophilic actinomycetes are shown to possess a special mechanism of adaptation to low pH conditions, which shows up in their ability to grow faster on acidified than on neutral media and to adjust the pH of the medium to a level favorable for the formation of aerial mycelium and spores. On nutrient media with pH below 5, neutrophilic actinomycetes either fail to grow or grow much slower than on neutral media; they do not alkalize the medium and do not form aerial mycelium.
authors.affiliation: Faculty of Soil Science, Moscow State University, Vorob'evy gory, Moscow, 119899 Russia.
authors.forename: Iu V
authors.initials: IuV
authors.lastname: Zakaliukina
authors.forename: G M
authors.initials: GM
authors.lastname: Zenova
authors.forename: D G
authors.initials: DG
authors.lastname: Zviagintsev
mesh_terms: D039903:Actinobacteria / Q000166:cytology / Q000254:growth & development / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D012988:Soil Microbiology