Abstract
Yeast abundance and diversity in a mixed forest sod–podzol soil under Impatiens parviflora DC plants was studied in comparison with unimpaired aboriginal herbaceous plants typical of the Central Russian secondary, after-forest meadow. The study was carried out throughout the vegetation period. Standard microbiological plating techniques revealed 36 yeast species. Typical pedobiotic (Cryptococcus podzolicus, Wickerhamomyces anomalus) and eurybiotic yeast species (Rhodotorula mucilaginosa) predominated in both biotopes. The relative abundance of the autochthonous soil yeast species Cryptococcus podzolicus was higher in the soil under aboriginal herbs than under Impatiens parviflora. Sites with aboriginal vegetation were also characterized by high abundance of the pedogamous species Schwanniomyces castelli and Torulaspora delbrueckii. The share of yeastlike Trichosporon fungi with high hydrolytic activity was considerably higher under adventitious plants Impatiens parviflora, as well as in the previously studied soil under Heracleum sosnowskyi.
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Original Russian Text © A.M. Glushakova, A.V. Kachalkin, I.Yu. Chernov, 2015, published in Mikrobiologiya, 2015, Vol. 84, No. 5, pp. 606–611.
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Glushakova, A.M., Kachalkin, A.V. & Chernov, I.Y. Effect of invasive herb species on the structure of soil yeast complexes in mixed forests exemplified by Impatiens parviflora DC. Microbiology 84, 717–721 (2015). https://doi.org/10.1134/S0026261715050094
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DOI: https://doi.org/10.1134/S0026261715050094