Ukrainian Antarctic Journal

Vol 24 No 1(32) (2026): Ukrainian Antarctic Journal
Articles

Biological potential of cultivated microbiota of bryophytes from the different biotopes of the maritime Antarctic

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  • Olha Maslovska,
  • Solomiia Komplikevych,
  • Laslo Uliganets,
  • Iryna Vronska,
  • Taras Peretyatko,
  • Ivan Parnikoza,
  • Svitlana Hnatush
Olha Maslovska
Ivan Franko National University of Lviv, Lviv, 79005, Ukraine
Solomiia Komplikevych
Ivan Franko National University of Lviv, Lviv, 79005, Ukraine
Laslo Uliganets
Ivan Franko National University of Lviv, Lviv, 79005, Ukraine
Iryna Vronska
Ivan Franko National University of Lviv, Lviv, 79005, Ukraine
Taras Peretyatko
Ivan Franko National University of Lviv, Lviv, 79005, Ukraine; State Institution National Antarctic Scientific Center, Ministry of Education and Science of Ukraine, Kyiv, 01601, Ukraine
Ivan Parnikoza
State Institution National Antarctic Scientific Center, Ministry of Education and Science of Ukraine, Kyiv, 01601, Ukraine; National Historical and Architectural Museum “Kyiv Fortress”, Kyiv, 01133, Ukraine
Svitlana Hnatush
Ivan Franko National University of Lviv, Lviv, 79005, Ukraine
DOI: https://doi.org/10.33275/1727-7485.1.2026.761
Published July 2, 2026
Keywords
  • Andreaea,
  • Bacillus,
  • Polytrichum,
  • Pseudomonas,
  • Sanionia,
  • Sporosarcina
    • ...More
    Less
How to Cite
Maslovska, O., Komplikevych, S., Uliganets, L., Vronska, I., Peretyatko, T., Parnikoza, I., & Hnatush, S. (2026). Biological potential of cultivated microbiota of bryophytes from the different biotopes of the maritime Antarctic. Ukrainian Antarctic Journal, 24(1(32), 100-123. https://doi.org/10.33275/1727-7485.1.2026.761

Copyright (c) 2026 Ukrainian Antarctic Journal

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Abstract

Antarctic substrates are inhabited by microorganisms resistant to environmental factors. Since large areas of soil worldwide are saline and contaminated with metals, which limit plant growth, it is important to isolate plant growth-promoting bacteria that are resistant to environmental factors. The aim of this study was to isolate copiotrophic, oligotrophic, oligonitrophilic, phosphate-, and zinc-solubilising bacteria, and to determine their properties, including enzymatic activity, the ability to produce auxins and siderophores, and growth under the influence of heavy metals and NaCl. The research material consisted of samples of short moss turf and cushion subformation with Andreaea depressinervis or Andreaea regularis, bryophyte carpet and mat subformation dominated by Ceratodon purpureus or Sanionia georgicouncinata and tall moss turf subformation (moss bank) fragments dominated by Polytrichum strictum or Chorisodontium aciphyllum, collected from biotopes of the maritime Antarctic. The cultivated microbiota of bryophytes of short moss turf and cushion subformation, bryophyte carpet and mat subformation, and tall moss turf subformation (moss banks) differed in the number of detected microbial groups and their enumeration. Copiotrophs and oligotrophs dominated the bacterial community structure of most samples, but oligonitrophyles prevailed in the short moss turf and cushion subformation fragments with An. depressinervis. Bacteria isolated from samples of bryophyte carpet and mat subformation with dominance of San. georgicouncinata are characterised by a wider range of properties – amylase, protease, cellulase, and lipase activities, and the ability to solubilise ZnO and Ca3(PO4)2. All bacterial isolates synthesised auxin-like compounds (up to 11.8 μg ⋅ ml–1). Most of them produced siderophores. The isolated bacteria possess a range of adaptive properties, including the ability to grow over a wide temperature range (+4…+42 °C), high salt tolerance (up to 10.0% NaCl), and resistance to heavy metals (Mn2+, Fe2+, Cu2+, Cd2+, Co2+, and Cr2O72–). Based on 16S rRNA gene sequencing, Bacillus sp. Sg840, Pseudomonas sp. S135, and Sporosarcina sp. S371 were identified. The identified properties and tolerance to environmental factors characterise the plant growthpromoting potential of bacteria isolated from Antarctic bryophyte subformations.

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