U. Rasmussen

Publications85
h-index35
Citations3,816
Highly Influential Citations254
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Diverse taxa of cyanobacteria produce beta-N-methylamino-L-alanine, a neurotoxic amino acid.
TLDR
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.
Transfer of a cyanobacterial neurotoxin within a temperate aquatic ecosystem suggests pathways for human exposure
TLDR
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.
Erratum: Diverse taxa of cyanobacteria produce β-N-methylamino-L- alanine, a neurotoxic amino acid (Proceedings of the National Academy of Sciences of the United States of America (April 5, 2005)…
Analytical protocol for identification of BMAA and DAB in biological samples.
TLDR
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.
Diatoms: A Novel Source for the Neurotoxin BMAA in Aquatic Environments
TLDR
It is demonstrated that diatoms – eukaryotic organisms – also produce BMAA, and the use of filter and suspension feeders as livestock fodder dramatically increases the risk of human exposure to BMAA-contaminated food.
Phylogeny of symbiotic cyanobacteria within the genus Nostoc based on 16S rDNA sequence analyses
TLDR
A phylogenetic analysis of selected symbiotic Nostoc strain sequences and available database 16S rDNA sequences of both symbiotic and free-living cyanobacteria was carried out using maximum likelihood and Bayesian inference techniques, verifying that hormogonia formation is not absent in Anabaena and cannot be used as a criterion to distinguish it from Nostoc.
Fingerprinting of Cyanobacteria Based on PCR with Primers Derived from Short and Long Tandemly Repeated Repetitive Sequences
TLDR
The presence of repeated DNA sequences in the genome of cyanobacteria was used to generate a fingerprint method for symbiotic and free-living isolates, indicating that the technique is useful for clustering of even closely related strains.
Biodiversity and seasonal variation of the cyanobacterial assemblage in a rice paddy field in Fujian, China.
TLDR
The number of cyanobacterial phylotypes showed a seasonal variation and reached a peak in September, both in the upper and deeper soil fractions, while some cyanob bacterial sequences were only present during the rice growth season, while others were only found after harvest.
BMAA in shellfish from two Portuguese transitional water bodies suggests the marine dinoflagellate Gymnodinium catenatum as a potential BMAA source.
TLDR
This work reveals for the first time the presence of BMAA in shellfish from Atlantic transitional water bodies and consubstantiate evidences of G. catenatum as one of the main sources ofBMAA in these ecosystems.
Early communication in the Gunnera-Nostoc symbiosis : plant-induced cell differentiation and protein synthesis in the cyanobacterium
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