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Trichodesmium, a Globally Significant Marine Cyanobacterium
N2 fixation by Trichodesmium is likely a major input to the marine and global nitrogen cycle. Expand
Diverse taxa of cyanobacteria produce beta-N-methylamino-L-alanine, a neurotoxic amino acid.
It is reported here that a single neurotoxin, beta-N-methylamino-L-alanine, may be produced by all known groups of cyanobacteria, including cyanobacterial symbionts and free-living cyanob bacteria. Expand
BASIC: Baltic Sea cyanobacteria. An investigation of the structure and dynamics of water blooms of cyanobacteria in the Baltic Sea responses to a changing environment.
Through determination of the genotypes of many individual Nodularia filaments, it was shown that this population of cyanobacteria was not clonal and that horizontal exchange of genetic information occurs, and tools to predict bloom formation were developed. Expand
Transfer of a cyanobacterial neurotoxin within a temperate aquatic ecosystem suggests pathways for human exposure
It is demonstrated, based on a recently developed extraction and HPLC-MS/MS method and long-term monitoring of BMAA in cyanobacterial populations of a temperate aquatic ecosystem (Baltic Sea, 2007–2008), that BMAA is biosynthesized by cyanob bacterial genera dominating the massive surface blooms of this water body. Expand
Dinitrogen fixation in the world's oceans
The surface water of themarine environment has traditionally beenviewed as a nitrogen (N) limited habitat, andthis has guided the development of conceptualbiogeochemical models focusing largely onExpand
Segregation of Nitrogen Fixation and Oxygenic Photosynthesis in the Marine Cyanobacterium Trichodesmium
It is postulate that in the early evolutionary phase of oxygenic photosynthesis, nitrogenase served as an electron acceptor for anaerobic heterotrophic metabolism and that PSI was favored by selection because it provided a micro-anaerobic environment for N2 fixation in cyanobacteria. Expand
N2 Fixation by Unicellular Bacterioplankton from the Atlantic and Pacific Oceans: Phylogeny and In Situ Rates
Unicellular cyanobacteria from the tropical North Atlantic and subtropical North Pacific share a common ancestry (16S rDNA) and that potential unicellular N2 fixers have diverged (nifH), and rates of fixation by bacterioplankton can be almost as high as those by the colonial N2-fixing marine cyanob bacteria Trichodesmium spp. Expand
Genome fluctuations in cyanobacteria reflect evolutionary, developmental and adaptive traits
The different rates of genome-size evolution and multi-copy gene abundance suggest two routes of genome development in the history of cyanobacteria, which are driven by gene-family enlargment and generates a broad adaptive potential; while the genome streamlining strategy imposes adaptations to highly specific niches. Expand
Analytical protocol for identification of BMAA and DAB in biological samples.
A robust and sensitive method for high confidence identification of BMAA after derivatization by 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC) and applicable for selective BMAA/DAB detection in various biological samples ranging from a prokaryotic cyanobacterium to eukaryotic fish. Expand