Changes in Chlorophyll a fluorescence and DNA as a plant response to UV-B radiation in Gnaphalium vira-vira [PDF]
Polish Polar Research, 2022 Ozone depletion at southern latitudes has recently increased the fluence of ultraviolet-B (UV-B) radiation striking the ground. This phenomenon has sparked much interest in unravelling the effects of this harmful radiation on living systems.
Pedro Cuadra +4 more
doaj +1 more source
Phenolic and flavonoid contents in Deschampsia antarctica plants growing in nature and cultured in vitro [PDF]
Polish Polar Research, 2021 The paper presents data on the total phenolic and flavonoid content in Deschampsia antarctica È. Desv. plants collected from natural habitats, plants cultured in vitro, regenerated plants, and plants cultivated in a growth chamber.
Maryana Twardovska +5 more
doaj +1 more source
Anatomy of the generative structures of the Subantarctic flowering plant Colobanthus apetalus (Labill.) Druce [PDF]
Polish Polar Research, 2021 This study investigated the details of the morphological and anatomical structure of the generative organs of the Subantarctic flowering plant, belonging to the family Caryophyllaceae - Colobanthus apetalus (Labill.) Druce.
Sylwia Milarska +2 more
doaj +1 more source
Effect of polyoxyethylene sorbitan monooleate (Tween 80) on exopolysaccharide and biomass composition of psycchrophilic yeast [PDF]
Polish Polar Research, 2023 Studies on the surface-active agents added during the cultivation process proved their effect on the synthesized bioproducts. The biosynthesis and accumulation of exopolysaccharide and biomass by Antarctic producer Cryptococcus laurentii AL65 were ...
Snezhana Rusinova-Videva +5 more
doaj +1 more source
Palmelloid formation in the Antarctic psychrophile, Chlamydomonas priscuii, is photoprotective
Frontiers in Plant Science, 2022 Cultures of the obligate, Antarctic psychrophile, Chlamydomonas priscuii grown at permissive low temperature (8°C) are composed of flagellated, single cells, as well as non-motile, multicellular palmelloids. The relative proportions of the two cell types
Beth Szyszka-Mroz +4 more
doaj +1 more source
Записки Горного института, 2022 During the seasonal work of the 64th Russian Antarctic Expedition in 2018-2019 at the “Vostok” drilling facility named after B.B.Kudryashov (“Vostok” station, Antarctic) specialists of Saint Petersburg Mining University conducted experimental ...
Danil V. Serbin, Andrey N. Dmitriev
doaj +1 more source
Extreme ecological response of a seabird community to unprecedented sea ice cover [PDF]
Royal Society Open Science, 2015 Climate change has been predicted to reduce Antarctic sea ice but, instead, sea ice surrounding Antarctica has expanded over the past 30 years, albeit with contrasted regional changes.
Christophe Barbraud +2 more
doaj +1 more source
Influence of Sea-Ice Anomalies on Antarctic Precipitation Using Source Attribution in the Community Earth System Model [PDF]
, 2020 We conduct sensitivity experiments using a general circulation model that has an explicit water source tagging capability forced by prescribed composites of pre-industrial sea-ice concentrations (SICs) and corresponding sea surface temperatures (SSTs) to
Fyke, Jeremy G. +7 more
core +3 more sources
Vagrants and visitors in the avifauna of the Haswell archipelago, East Antarctica
Polish Polar Research, 2020 The purpose of the work is to provide a comprehensive review of the available historical and current records of vagrant and visiting individuals sighted at the Haswell archipelago, near the Russian Antarctic station Mirny (Davis Sea, southern Indian ...
Golubev Sergey
doaj +1 more source
The effect of sodium fluoride on seeds germination and morphophysiological changes in the seedlings of the Antarctic species Colobanthus quitensis (Kunth) Bartl.and the Subantarctic species Colobanthus apetalus (Labill.) Druce [PDF]
Polish Polar Research, 2019 The phytotoxic effects of fluoride and its derivatives on the seeds and seedlings of the Colobanthus apetalus and Colobanthus quitensis were studied. This is a first study to evaluate the influence of sodium fluoride (NaF) on the morphophysiological and ...
Justyna Dulska +7 more
doaj +1 more source