Mycobiota of the Library’s Books in Russia

Author:

Popikhina E. A.1,Trepova E. S.1,Velikova T. D.1,Khazova S. S.1

Affiliation:

1. Federal Document Conservation Center. The National Library of Russia

Abstract

Numerous studies of microorganisms isolated from the surface of cultural heritage objects, including library documents, are regularly carried out in different countries. Although the micromycetes composition in each case varies, some species are constantly isolated. The structure of micromycetes communities inhabiting library documents was studied in 57 cities of Russia located in seven federal districts (Northwestern, Central, Southern, Volga, Ural, Siberian, Far Eastern). Micromycetes of 95 species from 32 genera were isolated and identified. The mycobiota of the library documents represented by Ascomycota occupies more than 90% of the species richness, Mucoromycota – 3–9%, Basidiomycota – 3–4%. The Aspergillaceae family was the leading one: it accounted for 48.5–67.3% of the total species richness. In all regions, species diversity is moderate: the Shannon index ranged from 2.7 to 3.3. The Mcintosh species richness index is sufficiently high everywhere (48.2–126.2), except the Ural (15.3). The McIntosh dominance indices (0.759–0.843) and Pielow (0.80–0.91) indicate a high level of species evenness in the mycobiota. The obtained values demonstrate the stability the documents’ mycobiota in libraries from different regions. Significant species similarity between the districts was revealed by calculation of binary coefficients: the Jaccard coefficient was from 0.44 to 0.60; the Sørensen’s qualitative measure of similarity was from 0.63 to 0.75; the quantitative similarity measure of Sørensen was from 0.44 to 0.71, and Morisita–Horn was from 0.66 to 1.0. Groups of dominant species in different regions are quite similar. The study of the ecological diversity of librarian books mycobiota demonstrates moderate diversity and sufficient stability of the community. A high degree of similarity of taxonomic structures was established regardless of the climatic conditions of the regions. Cosmopolitans characterized by high frequency of occurrence formed the major core of the library’s book mycobiota: Alternaria alternata, Aspergillus niger, Cladosporium cladosporioides, Mucor plumbeus and Penicillium aurantiogriseum.

Publisher

The Russian Academy of Sciences

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