THE CYTOLOGY OF MICROCOCCUS CRYOPHILUS

The cytology of Micrococcus cryophilus.

In a series of publications DeLamater has claimed that Micrococcuts cryophilus is a unicellular coccus, the nuclei of which divide by a typical mitotic process. In the most recent of these (DeLamater and Woodburn, 1952) the existence of evidence (Bisset, 1950) indicating that many cocci are internally divided by cross-walls is admitted but is described as "unconfirmed". In view of its importanc...

Some properties, including the substrate in vivo, of the delta 9-desaturase in Micrococcus cryophilus.

The delta 9-desaturase of the psychrophilic bacterium Micrococcus cryophilus is shown to be a membrane-bound enzyme that is probably linked to a cyanide- (and azide-) sensitive respiratory chain with oxygen as the final acceptor. It has a pH optimum of 8.7 and contains an essential thiol group, but has no special ion requirements. The desaturase activity of washed membranes could not be increas...

Desaturation of fatty acids by the psychrophilic bacterium Micrococcus cryophilus [proceedings].

l(8)-monoglucoside were non-mutagenic, as were the glucoside tetra-acetates of alizarin, chrysazin and quinizarin. When tested with the bacterial enzymes, all glucosides including the tetra-acetates were mutagenic for strain TA1537, apparently owing to formation of the free aglycones, alizarin, chrysazin, quinizarin and emodin, which are specific for strain TA11537. Emodin glucoside exhibited m...

Micrococcus cryophilus, spec. nov.; a large coccus especially suitable for cytologic study.

The pigments of Micrococcus tetragenus: VI. Micrococcus Tetragenus Infection.

A pattern of variation of Micrococcus tetragenw9 (Reimann, 1936 a, b), the transformation of its bacterial types (Reimann, 1937 a), and the significance of bacterial variation (Reimann, 1937 b,) were described and discussed in a series of papers published in this Journal. A strain of M. tetragenus isolated from the blood of a patient produced white colonies on agar, (Reimann, 1935). During the ...