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Microcystins (hepatotoxic heptapeptides) in german fresh water bodies
In 1995 and 1996 a total of 55 German water bodies with different trophic states were investigated for the presence of potentially microcystin‐producing cyanobacteria. The seston biomass of over 500Expand
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Molecular architecture and electrostatic properties of a bacterial porin.
The integral membrane protein porin from Rhodobacter capsulatus consists of three tightly associated 16-stranded beta barrels that give rise to three distinct diffusion channels for small solutesExpand
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Cyanopeptolins, new depsipeptides from the cyanobacterium Microcystis sp. PCC 7806.
Four depsipeptides (peptide lactones), called cyanopeptolins A, B, C and D, have been isolated from the cyanobacterium Microcystis sp. PCC 7806. They possess identical structures consisting of cyclicExpand
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The structure of porin from Rhodobacter capsulatus at 1.8 Å resolution
The structure of the porin from Rhodobacter capsulanus was determined at a resolution of 1.8 Å. The analysis started from a closely related crystal structure that had been solved at a mediumExpand
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Characterization of true-branching cyanobacteria from geothermal sites and hot springs of Costa Rica.
Costa Rica is at the centre of the Mesoamerican biodiversity hotspot. Little is known about cyanobacteria from this region so far. Here, four isolates of the order Stigonematales (section V) wereExpand
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Characterization of proteases in guts of Daphnia magna and their inhibition by Microcystis aeruginosa PCC 7806
Many cyanobacteria produce peptides that inhibit mammalian proteases. The hypothesis that inhibitors of mammalian proteases produced by cyanobacteria also interfere with digestive proteases ofExpand
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Regulation of cyanobacteria and microcystin dynamics in polymictic shallow lakes
A comparative study on seasonal dynamics of cyanobacteria and microcystins in relation to physical and chemical parameters was carried out in three polymictic shallow lakes. Lakes were predominatedExpand
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Cyanopeptolins, depsipeptides from cyanobacteria
Summary The wide range of secondary metabolites from cyanobacteria includes cyclic depsipeptides. They can be filed into several classes. Members of class V, the cyanopeptolins, are proposed in thisExpand
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Isolation and Chemical Analysis of the Sheaths of the Filamentous Cyanobacteria Calothrix parietina and C. scopulorum
SUMMARY: The sheaths of two species of cyanobacteria, Calothrix parietina (two strains) and C. scopulorum (one strain), were studied. Their fine structure showed osmiophilic fibres running parallelExpand
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Characterization of the lipopolysaccharides from eight strains of the cyanobacterium Synechococcus
Lipopolysaccharides have been isolated from eight strains of the unicellular cyanobacterium Synechococcus. Fucose, mannose, galactose, glucose and glucosamine were found in all of theExpand
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