Diversity of Aphanizomenon flos-aquae (Cyanobacterium) Populations along a Baltic Sea Salinity Gradient
نویسندگان
چکیده
منابع مشابه
Diversity of Aphanizomenon flos-aquae (cyanobacterium) populations along a Baltic Sea salinity gradient.
Colony-forming cyanobacteria of the genus Aphanizomenon form massive blooms in the brackish water of the Baltic Sea during the warmest summer months. There have been recent suggestions claiming that the Baltic Sea Aphanizomenon species may be different from Aphanizomenon flos-aquae found in lakes. In this study, we examined variability in the morphology and 16S-23S rRNA internal transcribed spa...
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We report here the de novo genome assembly of a cyanobacterium, Aphanizomenon flos-aquae strain 2012/KM1/D3, a harmful bloom-forming species in temperate aquatic ecosystems. The genome is 5.7 Mb with a G+C content of 38.2%, and it is enriched mostly with genes involved in amino acid and carbohydrate metabolism.
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Vb-AphaS-CL131 is a novel cyanosiphovirus that infects harmful Aphanizomenon flos-aquae. This cyanophage has an isometric head, 97 nm in diameter and a long, flexible non-contractile tail, 361 nm long. With a genome size of ~120 kb, it is the second largest cyanosiphovirus isolated to date. The latent period was estimated to be ~36 h and a single infected cell produces, on average, 218 infectio...
متن کاملAnalysis by gas chromatography-mass spectrometry of the fatty acid composition during temperature adaptation in Aphanizomenon flos-aquae, a diazotrophic cyanobacterium from the Baltic Sea.
Filamentous cyanobacteria such as AphunrzometiotiJl(~*~-aquae which are buoyant due the presence of gas vacuoles [ I ] float near the water surface ofthe Baltic Sea and form blooms where they experience optimum light conditions. However, as a result of turbulence in the water column, they may be mixed to greater depths and as a result experience a decrease in temperature from about 20°C at the ...
متن کاملDetection of microcystin synthetase genes in health food supplements containing the freshwater cyanobacterium Aphanizomenon flos-aquae.
In this study we investigated the presence of toxin-producing cyanobacterial contaminants in food supplements manufactured from blooms of the non-toxic freshwater cyanobacterium Aphanizomenon flos-aquae. Previous reports investigating the contamination of health food supplements with toxin-producing cyanobacteria have used chemical and or biochemical methods such as HPLC, ELISA and protein phos...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2002
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.68.11.5296-5303.2002