First record of the endophytic bacteria of Deschampsia antarctica Ė. Desv. from two distant localities of the maritime Antarctic

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dc.contributor.authorPodolich, Olga
dc.contributor.authorPrekrasna, Ievgeniia
dc.contributor.authorParnikoza, Ivan
dc.contributor.authorVoznyuk, Tamara
dc.contributor.authorZubova, Ganna
dc.contributor.authorZaets, Iryna
dc.contributor.authorMiryuta, Natalia
dc.contributor.authorMyryuta, Ganna
dc.contributor.authorPoronnik, Oksana
dc.contributor.authorKozeretska, Iryna
dc.contributor.authorKunakh, Viktor
dc.contributor.authorPirttila, Anna Maria
dc.contributor.authorDykyi, Evgen
dc.contributor.authorKozyrovska, Natalia
dc.date.accessioned2021-10-26T08:36:26Z
dc.date.available2021-10-26T08:36:26Z
dc.date.issued2021
dc.description.abstractEndophytic bacteria, recognized for their beneficial effects on plant development and adaptation, can facilitate the survival of Antarctic plants in severe environments. Here we studied endophytes of the vascular plant Deschampsia antarctica Ė. Desv. from two distantly located regions in the maritime Antarctic: King George Island (South Shetland Islands) and Galindez Island (Argentine Islands). Bacterial group-specific PCR indicated presence of Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Firmicutes, Cytophaga-Flavobacteria and Actinobacteria in root and leaf endosphere of D. antarctica sampled at four distinct sites of both locations. The diversity of endophytic bacteria was significantly higher in the leaves compared to the roots in plants from Galindez Island. Similarly, the diversity of endophytes was higher in the leaves rather than roots of plants from the King George Island. Twelve bacterial species were isolated from roots of D. antarctica of Galindez Island (the Karpaty Ridge and the Meteo Point) and identified by sequencing the 16S rRNA gene. Isolates were dominated by the Pseudomonas genus, followed by the genera Bacillus and Micrococcus. The vast majority of the isolates exhibited cellulase and pectinase activities, however, Bacillus spp. expressed neither of them, suggesting lack of genetic flow of these traits in endophytic bacilli in the maritime Antarctic. Pseudomonas sp. IMBG305 promoted an increase in the leaf number in most of the treated plant genotypes when compared with non-inoculated plants, and a rapid vegetation period of D. antarctica cultured in vitro, albeit the length of leaves in the treated plants was significantly lower, and flavonoid content leveled off in all treated plants. D. antarctica is known to develop diverse ecotypes with regard to ecological conditions, such as organic input, moisture or wind exposition. The D. antarctica phenotype could be extended further through the endophyte colonization, since phenotypic changes were observed in the inoculated D. antarcticaplants grown in vitro in our study. Herewith, endophytes can contribute to plant phenotypic plasticity, potentially beneficial for adaptation of D. antarctica.uk_UA
dc.identifier.citationFirst record of the endophytic bacteria of Deschampsia antarctica Ė. Desv. from two distant localities of the maritime Antarctic / Olga Podolich, Ievgeniia Prekrasna, Ivan Parnikoza, Tamara Voznyuk, Ganna Zubova, Iryna Zaets, Natalia Miryuta, Ganna Myryuta, Oksana Poronnik, Iryna Kozeretska, Viktor Kunakh, Anna Maria Pirttila, Evgen Dykyi, Natalia Kozyrovska // Czech Polar Reports. - 2021. - Vol. 11, Issue 1. - P. 134-153. - https://doi.org/10.5817/CPR2021-1-10uk_UA
dc.identifier.issn18050689
dc.identifier.issn18050697
dc.identifier.urihttps://doi.org/10.5817/CPR2021-1-10
dc.identifier.urihttps://ekmair.ukma.edu.ua/handle/123456789/21245
dc.language.isoenuk_UA
dc.relation.sourceCzech Polar Reportsuk_UA
dc.statusfirst publisheduk_UA
dc.subjectendophytic bacteriauk_UA
dc.subjectAntarctic hairgrassuk_UA
dc.subjectAntarcticauk_UA
dc.subjectplant growth promotionuk_UA
dc.subjectarticleuk_UA
dc.titleFirst record of the endophytic bacteria of Deschampsia antarctica Ė. Desv. from two distant localities of the maritime Antarcticuk_UA
dc.typeArticleuk_UA
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