Document Detail

Synthesis of vitamin B12 by various species of mycobacteria.
MedLine Citation:
PMID:  345687     Owner:  NLM     Status:  MEDLINE    
The synthesis of Vitamin B12 by five reference strains of species of mycobacteria, the influence of cobalt upton the synthesis and the correlation between the phase of growth and quantitative biosynthesis of Vitamin B12 were studied. Assays were performed on cell extracts and culture filtrates using Lactobacillus leichmannii ATCC7830 (tube method). All five species synthesized Vitamin B12, which could be deomonstrated both in cell extracts and in the culture filtrates. An optimum accumulation of Vitamin B12 by BCG and M. phlei could be observed on the 30th day of cultivation. Addition of cobalt did not influence the growth of BCG and M. phlei, but markedly enhanced the production of Vitamin B12. Cells contained much more Vitamin B12 than culture filtrates did. Vitamin B12 levels in M. smegmatis, M. fortuitum and M. asiaticum were lower than those in BCG and M. phlei.
V Karasseva; J G Weiszfeiler; Z Lengyel
Related Documents :
24943207 - Detection of mucor velutinosus in a blood culture after autologous peripheral blood ste...
24726257 - Lab-on-a-chip technologies for stem cell analysis.
24155167 - Conditioned medium as a strategy for human stem cells chondrogenic differentiation.
9443647 - Rapid identification of mycobacterium tuberculosis complex on urine samples by gen-prob...
2338257 - Retinal ischemia and cell proliferation in the rat: the role of soluble mitogens.
12381917 - Bactericidal activity of renal tubular cells: the putative role of human beta-defensins.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe A: Medizinische Mikrobiologie und Parasitologie     Volume:  239     ISSN:  0300-9688     ISO Abbreviation:  Zentralbl Bakteriol Orig A     Publication Date:  1977 Dec 
Date Detail:
Created Date:  1978-05-20     Completed Date:  1978-05-20     Revised Date:  2009-06-05    
Medline Journal Info:
Nlm Unique ID:  0331570     Medline TA:  Zentralbl Bakteriol Orig A     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  514-20     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
BCG Vaccine
Culture Media
Mycobacterium / metabolism*
Mycobacterium bovis / metabolism
Mycobacterium phlei / metabolism
Time Factors
Vitamin B 12 / biosynthesis*
Reg. No./Substance:
0/BCG Vaccine; 0/Culture Media; 68-19-9/Vitamin B 12

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Microbial society and its activity in the soil.
Next Document:  Tetracyclines: bacteriostatic or bactericidal drugs? In vitro studies with rolitetracycline, minocyc...