The aerobic decomposition of choline by microorganisms

✍ Scribed by Kortstee, G. J. J.

• Book ID: 104762478
• Publisher: Springer-Verlag
• Year: 1970
• Weight: 535 KB
• Volume: 71
• Category: Article
• ISSN: 0003-9276
• DOI: 10.1007/bf00410157

✦ Synopsis

The ability to decompose choline is widespread among aerobic microorganisms since representatives of the genera Agrobacterium, Arthrobacter, Micrococcus, Pseudomonas, Rhizobium, and Streptomyces and a large number of coryneform bacteria were found to grow with choline as the sole C-and N-source.

2. Almost all the coryneforms isolated from soil and dairy waste activated sludge displayed this ability in contrast to those isolated from cheese and, be it to a less extent, those from the phyllosphere. The significance of choline utilization in the taxonomy of coryneform bacteria is discussed.

3. All the choline-utilizing bacteria tested were found to be able to grow with betaine, I~,N-dimethylglycine, or sarcosine as the sole C-and N-source. Cholinegrown cells, as contrasted to those grown with yeast extract and glucose, of Pseudomonas/luorescens and Arthrobacter S a respired the latter three compounds at a rate