Biomaterial Database

[Growth of Micrococcus lysodeikticus bacteria on a deuterated medium]. 1978

V A Eremin, and L N Chekulaeva, and E F Kharat'ian, and D N Ostrovskiĭ

The object of this work was to prepare deuterated growth media and to adapt Micrococcus lysodeikticus to a medium containing deuterated-substituted organic substances and deuterium oxide instead of water. M. lysodeikticus was grown on a medium prepared from the "deuterated-cells" of Chlorella, and was capable of absorbing selectively protons from such a medium containing high concentrations of deuterium. Its deuterated cells ("monsters") produced structures consisting of several (up to 8) smaller cells, angular in shape and having a thicker (2--3 times) cell wall. Apparently, adaptation to a deuterated medium is accompanied with changes in the cell wall biosynthesis as a result of which the separation of daughter cells is interfered with in the course of cell division, and the cells are more resistant to the action of lysozyme.

UI	MeSH Term	Description	Entries
D008837	Micrococcus	A genus of gram-positive, spherical bacteria found in soils and fresh water, and frequently on the skin of man and other animals.
D010940	Plant Proteins	Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which PLANT PROTEINS, DIETARY is available.	Plant Protein,Protein, Plant,Proteins, Plant
D002708	Chlorella	Nonmotile unicellular green algae potentially valuable as a source of high-grade protein and B-complex vitamins.	Chlorellas
D003470	Culture Media	Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.	Media, Culture
D003903	Deuterium	The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.	Deuterons,Hydrogen-2,Hydrogen 2
D000222	Adaptation, Physiological	The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.	Adaptation, Physiologic,Adaptations, Physiologic,Adaptations, Physiological,Adaptive Plasticity,Phenotypic Plasticity,Physiological Adaptation,Physiologic Adaptation,Physiologic Adaptations,Physiological Adaptations,Plasticity, Adaptive,Plasticity, Phenotypic