Antarctic Hairgrass Rhizosphere Microbiomes: Microscale Effects Shape Diversity, Structure, and Function

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dc.contributor.authorPrekrasna, Ievgeniia
dc.contributor.authorPavlovska, Mariia
dc.contributor.authorMiryuta, Natalia
dc.contributor.authorDzhulai, Artem
dc.contributor.authorDykyi, Evgen
dc.contributor.authorConvey, Peter
dc.contributor.authorKozeretska, Iryna
dc.contributor.authorBedernichek, Tymur
dc.contributor.authorParnikoza, Ivan
dc.date.accessioned2022-07-25T05:10:48Z
dc.date.available2022-07-25T05:10:48Z
dc.date.issued2022
dc.description.abstractThe rhizosphere microbiome of the native Antarctic hairgrass Deschampsia antarctica from the central maritime Antarctic was investigated using 16S RNA metagenomics and compared to those of the second native Antarctic plant Colobanthus quitensis and closely related temperate D. cespitosa. The rhizosphere microbial communities of D. antarctica and D. cespitosa had high taxon richness, while that of C. quitensis had markedly lower diversity. The majority of bacteria in the rhizosphere communities of the hairgrass were affiliated to Proteobacteria, Bacteroidetes, and Actinobacteria. The rhizosphere of C. quitensis was dominated by Actinobacteria. All microbial communities included high proportions of unique amplicon sequence variants (ASVs) and there was high heterogeneity between samples at the ASV level. The soil parameters examined did not explain this heterogeneity. Bacteria belonging to Actinobacteria, Bacteroidetes, and Proteobacteria were sensitive to fluctuations in the soil surface temperature. The values of the United Soil Surface Temperature Influence Index (UTII, It i) showed that variations in most microbial communities from Galindez Island were associated with microscale variations in temperature. Metabolic predictions in silico using PICRUSt 2.0, based on the taxonomically affiliated part of the microbiomes, showed similarities with the rhizosphere community of D. antarctica in terms of the predicted functional repertoire. The results obtained indicate that these communities are involved in the primary processes of soil development (particularly the degradation of lignin and lignin-derived compounds) in the central maritime Antarctic and may be beneficial for the growth of Antarctic vascular plants. However, due to the limitations associated with interpreting PICRUSt 2.0 outputs, these predictions need to be verified experimentally.en_US
dc.identifier.citationAntarctic Hairgrass Rhizosphere Microbiomes: Microscale Effects Shape Diversity, Structure, and Function / Ievgeniia Prekrasna, Mariia Pavlovska, Natalia Miryuta, Artem Dzhulai, Evgen Dykyi, Peter Convey, Iryna Kozeretska, Tymur Bedernichek, Ivan Parnikoza // Microbes and Environments. - 2022. - Vol. 37, Issue 2. - Article number ME21069. - https://doi.org/10.1264/jsme2.ME21069en_US
dc.identifier.issn1342-6311
dc.identifier.urihttps://doi.org/10.1264/jsme2.ME21069
dc.identifier.urihttps://ekmair.ukma.edu.ua/handle/123456789/23484
dc.language.isoenuk_UA
dc.relation.sourceMicrobes and Environmentsen_US
dc.statusfirst publisheduk_UA
dc.subjectrhizosphere microbiomeen_US
dc.subjectAntarctic vascular plantsen_US
dc.subjectmicrobial diversityen_US
dc.subjectmicrobial functional repertoireen_US
dc.subjectarticleen_US
dc.titleAntarctic Hairgrass Rhizosphere Microbiomes: Microscale Effects Shape Diversity, Structure, and Functionen_US
dc.typeArticleuk_UA
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