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The release of glutamic acid from the obligate marine psychrophilic bacterium Vibrio marinus MP‐1 under various physical conditions has shown that at least two glutamate pools are potentially present. One, designated amino acid pool one, is loosely bound to the cell and is not found in cells...
Growth of the blue‐green alga Anacystis nidulans treated with methyl methane sulphonate (MMS) at pH 5 or 6 was better than that at pH 7 or 8, both in regard to the duration of the lag‐phase and the growth rate. Toxicity of MMS was directly proportional to the temperature at which the cells had...
If Torulopsis utilis is grown in mineral solutions containing 2.5 and 5% sugar the yields of yeast dry matter are only 80% and 26%, respectively, relative to the theoretical value if an economical coefficient of 50% is used. In the presence of 30% of waste liquor of the citric acid fermentation...
With the help of bromouracil mutagenesis and selection of haloless plaques after chloroform treatment 15 haloless mutants of phage T4 were isolated.
Unusual structures ‐ crystals, crystal‐associated microtubules, and bundles of microtubules ‐ have been observed in protoplasts, but not in normally grown cells of Saccharomyces carlsbergensis and S. cerevisiae. The leaflet‐like crystals (diameter 0.3‐3 μm, thickness 0.01‐0.1 μm) occurred in the...
Using 4 different methods, a total of 126 Bacillus strains representing 33 different species, was examined for their ability to degrade methoxylated and demethylated pectin. The highest number of pectinolytic strains (35) was found with a newly developed, tubed polypectate‐gel, which gave...
In replacementexperiments L‐tryptophan was rapidly metabolized by Candida guilliermondii, strain H17, cultivated before in a medium containing n‐alkanes as sole carbon sources. After growth in a medium containing glucose tryptophan utilization was suppressed. Thin layer chromatography showed...
Aus der Fraktion der polaren Lipide von Brucella melitensis, Br. abortus und Bordetella pertussis wurde ein phosphatfreies Lipid isoliert, das aus vier Bausteinen besteht: Ornithin, Athylenglykol und zwei Fettsäuren. Äthylenglykoll ist darin esterartig mit Ornithin und mit einer der beiden...
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