Zobrazeno 1 - 10
of 682
pro vyhledávání: '"Ulf Karsten"'
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
Ultraviolet radiation (UVR) is the photochemically most reactive waveband of incident solar irradiation. Despite high absorption in aquatic environments, UVR causes numerous biochemical, genetic, and cytotoxic effects in aquatic organisms. To counter
Externí odkaz:
https://doaj.org/article/389edbe7ba60413aa86924eefb58ceb1
Autor:
Luisa Düsedau, Stein Fredriksen, Markus Brand, Philipp Fischer, Ulf Karsten, Kai Bischof, Amanda Savoie, Inka Bartsch
Publikováno v:
Ecology and Evolution, Vol 14, Iss 6, Pp n/a-n/a (2024)
Abstract The Arctic archipelago of Svalbard is a hotspot of global warming and many fjords experience a continuous increase in seawater temperature and glacial melt while sea‐ice cover declines. In 1996/1998, 2012–2014, and 2021 macroalgal biomas
Externí odkaz:
https://doaj.org/article/798c3356279a46feaa7bc89f66f00b49
Autor:
Jacob Handy, Desirée Juchem, Qian Wang, Katherina Schimani, Oliver Skibbe, Jonas Zimmermann, Ulf Karsten, Klaus Herburger
Publikováno v:
Frontiers in Plant Science, Vol 15 (2024)
Antarctic algae are exposed to prolonged periods of extreme darkness due to polar night, and coverage by ice and snow can extend such dark conditions to up to 10 months. A major group of microalgae in benthic habitats of Antarctica are diatoms, which
Externí odkaz:
https://doaj.org/article/e134aabb211b4aef968de3bcf68c9449
Autor:
Sandra Kammann, Peter Leinweber, Karin Glaser, Ulf Schiefelbein, Christian Dolnik, Tatiana Mikhailyuk, Eduard Demchenko, Elena Heilmann, Ulf Karsten
Publikováno v:
Frontiers in Ecology and Evolution, Vol 11 (2024)
Harsh environmental conditions form habitats colonized by specialized primary microbial colonizers, e.g., biological soil crusts (biocrusts). These cryptogamic communities are well studied in drylands but much less in temperate coastal dunes, where t
Externí odkaz:
https://doaj.org/article/117d744eed784d119fb888a2a6cd3431
Autor:
Desirée P. Juchem, Katherina Schimani, Andreas Holzinger, Charlotte Permann, Nélida Abarca, Oliver Skibbe, Jonas Zimmermann, Martin Graeve, Ulf Karsten
Publikováno v:
Frontiers in Microbiology, Vol 14 (2023)
In polar regions, the microphytobenthos has important ecological functions in shallow-water habitats, such as on top of coastal sediments. This community is dominated by benthic diatoms, which contribute significantly to primary production and biogeo
Externí odkaz:
https://doaj.org/article/f1d72dd8363048a283e93b9bd43b4d01
Autor:
Julia Katharina Kurth, Martin Albrecht, Karin Glaser, Ulf Karsten, Gisle Vestergaard, Martin Armbruster, Susanne Kublik, Christoph A. O. Schmid, Michael Schloter, Stefanie Schulz
Publikováno v:
Frontiers in Microbiology, Vol 14 (2023)
IntroductionBiological soil crusts (biocrusts) are known as biological hotspots on undisturbed, nutrient-poor bare soil surfaces and until now, are mostly observed in (semi-) arid regions but are currently poorly understood in agricultural systems. T
Externí odkaz:
https://doaj.org/article/c0a89d98ec2144c785c56617b958e670
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
Broadly distributed seaweeds, such as the boreal-temperate kelp species Saccharina latissima, contain a multitude of metabolites supporting acclimation to environmental changes, such as temperature and salinity. In Europe, S. latissima occurs along t
Externí odkaz:
https://doaj.org/article/109b315640c74066a4c33a8e2428f3f5
Autor:
Maria Orfanoudaki, Mostafa Alilou, Anja Hartmann, Julia Mayr, Ulf Karsten, Hieu Nguyen-Ngoc, Markus Ganzera
Publikováno v:
Marine Drugs, Vol 21, Iss 10, p 543 (2023)
This study presents a phytochemical survey of two common intertidal red algal species, Bostrychia scorpioides and Catenella caespitosa, regarding their MAA (mycosporine-like amino acid) composition, which are known as biogenic sunscreen compounds. Si
Externí odkaz:
https://doaj.org/article/f913532ef6bb44eaa8c9923b91f407a4
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Increased solar radiation on the Earth’s surface is expected due to global change. Mangrove macroalgae can be negatively affected by increased solar radiation, since some species, such as Bostrychia spp. have been characterized as typical “shade
Externí odkaz:
https://doaj.org/article/93908ee9365d422caee288784e06bfe0
Autor:
Leila Kashi Zenouzi, Seyed Hasan Kaboli, Kazem Khavazi, Mohammad Sohrabi, Mohammad Khosroshahi, Ulf Karsten
Publikováno v:
Environmental Health Engineering and Management, Vol 8, Iss 3, Pp 153-167 (2021)
Background: Biological soil crusts (BSCs) that are able to produce sticky extracellular polymeric substances (EPS) play an important role in the formation of soil aggregates, thereby, reducing soil erosion. In this study, experiments were undertake
Externí odkaz:
https://doaj.org/article/18b12a430df94db1b04dcf0bec45cfbe