David Fewer
@FewerLab
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News from our lab. We study toxic cyanobacteria, water quality, secondary metabolism and microbial bioinformatics. Posts by lab members. Led by @david_fewer
University of Helsinki
Joined November 2021
Bacteria can make extracellular polysaccharides that mediate heavy metal removal. This exopolysaccharide-producing cyanobacterium turned a 40-ml liquid culture into a gel. #UHCCCultureCollection
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Oldest direct evidence for oxygenic photosynthesis in cyanobacteria fossils from around 1.75 billion years ago
I'm happy and so proud to share our new paper published in Nature, today! #Fossil #FossilThylakoids #Photosynthesis #Cyanobacteria
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Our paper describing the isolation of a toxic strain of cyanobacteria from a microbial mat in the Helsinki coast of the Baltic Sea
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RT @Niedermeyer_Lab: The cyanobacterium Aetokthonos hydrillicola really is nasty, as we show in the most recent @PNASNews cover story (http…
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Sila's paper on an unusual branched biosynthetic pathway for the production of microbial sunscreens out now in ACS Chemical Biology
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Our latest paper on the isolation of a toxin-producing cyanobacterium from an algal mat on the Helsinki coast of the Baltic Sea
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RT @KnuuttilaS: Kaksi kuvaa #Itämeri'stä juuri nyt. Meri on kuuma, @dmidk'n mukaan n. 4 °C yli 1985-2003 keskiarvon. Oikealla @SYKE_EO:ssa…
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Photo of a foliose tripartite lichen (Peltigera) that keeps cyanobacteria (Nostoc) as a nitrogen-fixing partner in black bodies called cephalodia. These cyanobacteria can produce toxins while in symbiosis or grown in pure culture.
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RT @CcacOf: Our alga of the week from the@CCACof is #CCAC 3369 B Spirulina sp. Class: #Cyanophyceae Order: Spirulinales Family: Spirulinace…
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RT @steffwould: Domoic acid event along the coast is having a significant effect on the health of marine mammals 💔 via @NYTimes
https://t.…
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Xiaodan Ouyang (@XiaodanOuyang) presenting her paper on the direct pathway cloning and expression of radiosumin biosynthetic pathway at the Nordic Natural Products conference today. Well done Xiaodan! #ChinaScholarshipCouncil
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RT @FewerLab: Spirulina grows on rocks and boulders in the #BalticSea. These cyanobacteria can adapt their light harvesting apparatus to di…
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Spirulina grows on rocks and boulders in the #BalticSea. These cyanobacteria can adapt their light harvesting apparatus to dim light using different pigments. Photos by Annica Långnabba (Metsähallitus) and @inkeri_vuori
#MicroscopyMonday @VELMUohjelma @NesslingSaatio
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Congratulations to @XiaodanOuyang on her article in Organic and Biomolecular Chemistry! A big thanks to all co-authors. We report the radiosumin biosynthetic pathway and show that this small molecule is a human trypsin inhibitor. #Nordaqua #mmtdk
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@janthealgaeman @inkeri_vuori We did check by mass spectrometry but did not detect cyanotoxins form this sample.
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Trichodesmium forms blooms in tropical and subtropical oceans where they are important source of new nitrogen. Sailors have referred to the blooms as sea sawdust since the 1700s. This study in Science resolves how motile filaments form colonies under stress conditions.
The movement of individual gliding filaments of nitrogen-fixing cyanobacteria Trichodesmium and their interactions with other filaments help these nitrogen-fixing cyanobacterium form aggregates in response to stress, a new Science study finds.
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