Diatom frustules protect DNA from ultraviolet light

LE Aguirre, L Ouyang, A Elfwing, M Hedblom, A Wulff… - Scientific reports, 2018 - nature.com
The evolutionary causes for generation of nano and microstructured silica by photosynthetic
algae are not yet deciphered. Diatoms are single photosynthetic algal cells populating the …

Short-term variability in bacterial abundance, cell properties, and incorporation of leucine and thymidine in subarctic sea ice

H Kaartokallio, DH Søgaard, L Norman… - Aquatic microbial …, 2013 - int-res.com
Sea ice is a biome of immense size and provides a range of habitats for diverse microbial
communities, many of which are adapted to living at low temperatures and high salinities in …

An active bacterial community linked to high chl-a concentrations in Antarctic winter-pack ice and evidence for the development of an anaerobic sea-ice bacterial …

E Eronen-Rasimus, AM Luhtanen, JM Rintala… - The ISME …, 2017 - academic.oup.com
Antarctic sea-ice bacterial community composition and dynamics in various developmental
stages were investigated during the austral winter in 2013. Thick snow cover likely insulated …

The contribution of mycosporine-like amino acids, chromophoric dissolved organic matter and particles to the UV protection of sea-ice organisms in the Baltic Sea

J Piiparinen, S Enberg, JM Rintala… - Photochemical & …, 2015 - Springer
The effects of ultraviolet radiation (UVR) on the synthesis of mycosporine-like amino acids
(MAAs) in sea-ice communities and on the other UV-absorption properties of sea ice were …

Life associated with Baltic Sea ice

DN Thomas, H Kaartokallio, L Tedesco… - … oceanography of the …, 2017 - Springer
The formation of sea ice impacts directly on the physical dynamics of water masses (eg wind
stress at the sea surface) and air-sea exchange processes (eg vertical heat fluxes). 2. The …

Wintertime Simulations Induce Changes in the Structure, Diversity and Function of Antarctic Sea Ice-Associated Microbial Communities

VL Cono, F Smedile, F Crisafi, L Marturano… - Microorganisms, 2022 - mdpi.com
Antarctic sea-ice is exposed to a wide range of environmental conditions during its annual
existence; however, there is very little information describing the change in sea-ice …

Sea-ice eukaryotes of the Gulf of Finland, Baltic Sea, and evidence for herbivory on weakly shade-adapted ice algae

M Majaneva, J Blomster, S Müller, R Autio… - European Journal of …, 2017 - Elsevier
To determine community composition and physiological status of early spring sea-ice
organisms, we collected sea-ice, slush and under-ice water samples from the Baltic Sea. We …

Solar PAR and UVR modify the community composition and photosynthetic activity of sea ice algae

S Enberg, J Piiparinen, M Majaneva… - FEMS Microbiology …, 2015 - academic.oup.com
The effects of increased photosynthetically active radiation (PAR) and ultraviolet radiation
(UVR) on species diversity, biomass and photosynthetic activity were studied in fast ice algal …

Autumn to spring microbial community in the northern Baltic Sea: temporal variability in bacterial, viral and nanoflagellate abundance during the cold-water season

L Kaikkonen, S Enberg, J Blomster, AM Luhtanen… - Polar Biology, 2020 - Springer
Marine microbial communities undergo drastic changes during the seasonal cycle in high
latitude seas. Despite the dominance of microbial biomass in the oceans, comprehensive …

[PDF][PDF] Natural succession of microalgal communities during the cold-water season and the impact of increased solar irradiance on sea ice algae

S Enberg - Sea, 2017 - helda.helsinki.fi
In temperate and sub-polar latitudes, eg the Baltic Sea in Northern Europe, the year is
characterized by four calendar-based seasons (spring, summer, fall and winter) resulting …