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  • 1
    ISSN: 1573-3025
    Keywords: atmospheric bacteria ; identification ; population distribution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We collected bacteria from the atmosphere (5–6 m above ground level) with an Andersen microbial sampler at Fengtai District, Beijing, in the spring and autumn of 1989. The 195 strains of bacteria collected and isolated were identified according to their morphological, biochemical and physiological characteristics. The results showed that there were 11 bacterial genera in the atmosphere of the town, the most abundant beingStaphylococcus andBacillus. The order of prevailing genera of the two seasons is similar. In morphology, gram positive (G+) bacteria predominate among atmospheric bacteria (G+ cocci, G+ rods and G+ endospore-forming rods). It seems that the constitution of atmospheric bacteria is influenced not only by the source strength of the various bacteria in the environment, but also by their somewhat resistant mechanisms such as protective pigments and spore structure. From our experience, in order to avoid the possible data loss from selecting and identifying some «representative» colonies of samples, all strains isolated should be identified when studying ecological distribution of microbes in the atmosphere.
    Type of Medium: Electronic Resource
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