Search Results - "Remias, Daniel"
-
1
The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells
Published in Journal of glaciology (01-08-2023)“…Melting glacier surfaces are unique ecosystems for specialized microbes, frequently harbouring blooms of microalgae with pigments contributing to the darkening…”
Get full text
Journal Article -
2
Ice-Binding Proteins in a Chrysophycean Snow Alga: Acquisition of an Essential Gene by Horizontal Gene Transfer
Published in Frontiers in microbiology (28-11-2019)“…All ice-associated algae examined so far have genes for ice-binding proteins (IBPs), which suggest that these proteins are essential for survival in icy…”
Get full text
Journal Article -
3
Coelastrella terrestris for Adonixanthin Production: Physiological Characterization and Evaluation of Secondary Carotenoid Productivity
Published in Marine drugs (26-02-2022)“…A novel strain of (Chlorophyta) was collected from red mucilage in a glacier foreland in Iceland. Its morphology showed characteristic single, ellipsoidal…”
Get full text
Journal Article -
4
Snow and Glacial Algae: A Review1
Published in Journal of phycology (01-04-2020)“…Snow or glacial algae are found on all continents, and most species are in the Chlamydomonadales (Chlorophyta) and Zygnematales (Streptophyta). Other algal…”
Get full text
Journal Article -
5
Characterization of an UV- and VIS-absorbing, purpurogallin-derived secondary pigment new to algae and highly abundant in Mesotaenium berggrenii (Zygnematophyceae, Chlorophyta), an extremophyte living on glaciers
Published in FEMS microbiology ecology (01-03-2012)“…Abstract M esotaenium berggrenii is one of few autotrophs that thrive on bare glacier surfaces in alpine and polar regions. This extremophilic alga produces…”
Get full text
Journal Article -
6
Analysis of Mycosporine-Like Amino Acids in Selected Algae and Cyanobacteria by Hydrophilic Interaction Liquid Chromatography and a Novel MAA from the Red Alga Catenella repens
Published in Marine drugs (09-10-2015)“…Mycosporine-like amino acids (MAAs), a group of small secondary metabolites found in algae, cyanobacteria, lichens and fungi, have become ecologically and…”
Get full text
Journal Article -
7
Algae Drive Enhanced Darkening of Bare Ice on the Greenland Ice Sheet
Published in Geophysical research letters (28-11-2017)“…Surface ablation of the Greenland ice sheet is amplified by surface darkening caused by light‐absorbing impurities such as mineral dust, black carbon, and…”
Get full text
Journal Article -
8
A DUF3494 ice-binding protein with a root cap domain in a streptophyte glacier ice alga
Published in Frontiers in plant science (2023)“…Ice-binding proteins (IBPs) of the DUF3494 type have been found in many ice-associated unicellular photoautotrophs, including chlorophytes, haptophytes,…”
Get full text
Journal Article -
9
Tetraedron minimum , First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids
Published in Life (Basel, Switzerland) (30-01-2021)“…We isolated a novel strain of the microalga in Iceland from a terrestrial habitat. During long-term cultivation, a dish culture turned orange, indicating the…”
Get full text
Journal Article -
10
Ecology, cytology and phylogeny of the snow alga Scotiella cryophila K-1 (Chlamydomonadales, Chlorophyta) from the Austrian Alps
Published in Phycologia (Oxford) (01-01-2018)“…Long-lasting, slowly melting snowfields in mountainous regions are frequently populated by specialised microalgae whose diversity is still vastly…”
Get full text
Journal Article -
11
Ecophysiology and ultrastructure of Ancylonema nordenskiöldii (Zygnematales, Streptophyta), causing brown ice on glaciers in Svalbard (high arctic)
Published in Polar biology (01-06-2012)“…At the arctic archipelago of Svalbard, bare glacier surfaces are populated by microalgae like Ancylonema nordenskiöldii (Zygnematales, Streptophyta). The…”
Get full text
Journal Article -
12
Unicellular versus Filamentous: The Glacial Alga Ancylonema alaskana comb. et stat. nov. and Its Ecophysiological Relatedness to Ancylonema nordenskioeldii (Zygnematophyceae, Streptophyta)
Published in Microorganisms (Basel) (20-05-2021)“…Melting polar and alpine ice surfaces frequently exhibit blooms of dark pigmented algae. These microbial extremophiles significantly reduce the surface albedo…”
Get full text
Journal Article -
13
Cysts of the Snow Alga Chloromonas krienitzii (Chlorophyceae) Show Increased Tolerance to Ultraviolet Radiation and Elevated Visible Light
Published in Frontiers in plant science (17-12-2020)“…Melting mountainous snowfields are populated by extremophilic microorganisms. An alga causing orange snow above timberline in the High Tatra Mountains (Poland)…”
Get full text
Journal Article -
14
Investigating the Growth of Algae Under Low Atmospheric Pressures for Potential Food and Oxygen Production on Mars
Published in Frontiers in microbiology (12-11-2021)“…With long-term missions to Mars and beyond that would not allow resupply, a self-sustaining Bioregenerative Life Support System (BLSS) is essential. Algae are…”
Get full text
Journal Article -
15
Distribution and UV protection strategies of zooplankton in clear and glacier-fed alpine lakes
Published in Scientific reports (03-07-2017)“…Zooplankton, a group of aquatic animals important as trophic link in the food web, are exposed to high levels of UV radiation (UVR) in clear alpine lakes,…”
Get full text
Journal Article -
16
Response of arctic snow and permafrost algae to high light and nitrogen stress by changes in pigment composition and applied aspects for biotechnology
Published in FEMS microbiology ecology (01-03-2009)“…Ten algal strains from snow and permafrost substrates were tested for their ability to produce secondary carotenoids and α-tocopherol in response to high light…”
Get full text
Journal Article -
17
Physiological and morphological processes in the Alpine snow alga Chloromonas nivalis (Chlorophyceae) during cyst formation
Published in Protoplasma (01-07-2010)“…Amongst a specialised group of psychrophilic microalgae that have adapted to thrive exclusively in summer snow fields, Chloromonas nivalis has been reported as…”
Get full text
Journal Article -
18
Ecophysiology of Chloromonas hindakii sp. nov. (Chlorophyceae), Causing Orange Snow Blooms at Different Light Conditions
Published in Microorganisms (Basel) (10-10-2019)“…Slowly melting snowfields in mountain and polar regions are habitats of snow algae. Orange blooms were sampled in three European mountain ranges. The cysts…”
Get full text
Journal Article -
19
Imbricaric acid and perlatolic acid: multi-targeting anti-inflammatory depsides from Cetrelia monachorum
Published in PloS one (09-10-2013)“…In vitro screening of 17 Alpine lichen species for their inhibitory activity against 5-lipoxygenase, microsomal prostaglandin E2 synthase-1 and nuclear factor…”
Get full text
Journal Article -
20
In Memoriam Cornelius Lütz (1945–2024)
Published in Protoplasma (01-09-2024)Get full text
Journal Article