Chemokinetic Motility Responses of the Cyanobacterium Oscillatoria terebriformis
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چکیده
منابع مشابه
Antagonistic activity of bioactive compounds extracted from cyanobacterium Oscillatoria isolated from oil refinery waste
The aim of the present study was to isolate cyanobacteria from oil refinery waste water and detection of antagonistic activity of their extracts on four species of pathogenic bacteria. The cyanobacterium was isolated and purified on Blue green algae medium number 11 (BG-11) medium. Methanol and water extracts prepared from the cultured cyanobacterium after 45 days growth on BG-11 medium. The bi...
متن کاملA Study on the Life Time of the S3-State in the Filamentous Cyanobacterium Oscillatoria chalybea
G. H. Schmid, K. P. Bader, and R. Schulder Universität Bielefeld, Fakultät für Biologie, Lehrstuhl Zellphysiologie Postfach 100131, D-33501 Bielefeld, Bundesrepublik Deutschland Z. Naturforsch. 49c, 108-114 (1994); received July 26/October 11,1993 Filamentous Cyanobacterium, S-State, Metastable S3-State, Kok Model In the filamentous cyanobacterium Oscillatoria chalybea deactivation of the S-sta...
متن کاملStructure and toxicity of a peptide hepatotoxin from the cyanobacterium Oscillatoria agardhii.
A peptide hepatotoxin was isolated by reversed phase liquid chromatography from the cyanobacterium Oscillatoria agardhii and characterized structurally and toxicologically. Amino acid analyses, proton nuclear magnetic resonance and fast atom bombardment mass spectrometry showed that the toxin is a cyclic heptapeptide (mol. wt 1023.5) with the structure cyclo-(Ala-Arg-Asp-Arg-Adda-Glu-N-methylde...
متن کاملFurther Studies on the Induction of Nitrate Reductase by Arginine in the Filamentous Cyanobacterium Oscillatoria chalybea
In an earlier publication we reported on the role o f arginine for the development o f nitrate reductase activity in cells o f the filamentous cyanobacterium Oscillatoria chalybea (Bednarz and Schmid, Z. Naturforsch. 46c, 591 (1991)). In the present paper we present further evidence that arginine is the natural inducer for nitrate reductase activity. Thus, we show that the induc tion is regula...
متن کاملInduction of Nitrate Reductase Activity by Arginine in the Filamentous Cyanobacterium Oscillatoria chalybea
In Oscillatoria chalybea, as in other cyanobacteria, nitrate reduction depends directly on photosynthetic activity. Hence, nitrate reduction occurs only in the light and appears inhibited when photosynthesis is inhibited by the herbicide DCM U. Growth o f Oscillatoria cells is pos sible on a variety o f exogenous nitrogen sources in the medium and appears largely independ ent on the type of n...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1989
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.55.1.261-263.1989