1971/12/01 by Beverly M. Guirard, Esmond E. Snell · 2 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Environmental Science · #Bacteria #Bacteriophages and microbial interactions #Biochemistry #Biology #Biotin #Carbon source #Ecology #Energy source #Enzyme #Enzyme Production and Characterization #Food science #Microbiology #Organism #Plant-Microbe Interactions and Immunity #Pseudomonas #Pyridoxal #Pyridoxamine #Pyridoxine #Vitamin #Vitamin b6
paper · pdf · doi:10.1128/jb.108.3.1318-1321.1971
openalex publication_date 1971/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
Cultural characteristics of Pseudomonas MA-1, which has been extensively used as a source of enzymes that degrade vitamin B(6), confirm its classification as a pseudomonad. The organism requires biotin for growth; any one of several amino acids is also required for growth when pyridoxine (but not when glucose) serves as the energy source. Growth of Pseudomonas MA-1 is inhibited by one or more unidentified substances formed when pyridoxine is autoclaved with the medium. Modified cultural conditions are described which permit the large-scale growth of the organism with pyridoxine as carbon source.