Pseudomonas aureofaciens nov. spec. and its pigments.
نویسنده
چکیده
It is well knowni that the genus Pseudomonas comllpirises several p)igment-producing species, an(l that in all cases in whiich the constitution of these pigments lhais l)een estal)lishedl thlehave leen found to l)e plhenlzine (lerivatives. Wrede and Strack (1929) were the first to prove this foI pyocyanine, the pigment produce(l by Pseudomonas aeruginosa (P. pyocyanea). Pyocvanine is now usually consider(ed to be a resonance hybrid of the mesomeric forms of n-methyl 1-hydrioxyphenazine (Hillemann, 1938). K6gl and Postowsky (1930) established that chloioraphine, the green pigiment of Pseudomonas chlororaphis, is the semiquinoine of phenazine-acarboxylic acid amide, while Clemo aind Daglish (1950) proved io(linin, the pigment of Pseudonm,onas iodina, to l)e 1:6-dihydroxyphenazine-din-oxide. In view of these (latta it seems worthwhile to look out for further pigment-producing species within the genus Pseuidomonas in order to check if still other phenazine (lerivatives occur as natural products.' The opportunity presented itself in 1936 when MrI. H. Bouman, working in this laboratory, incidentally came across a bacterium which was easily identified as a Pseudomnonas species, and which attracted attention by an ample formation of yellow crystals in its colonies. Mr. Bouman showed that a crystalline pigment could also be isolated from various liquid medlia in which the bacterium had grown. Some years later his observations were extended, first by MrI. J. J. Ghijsen, and next by Mr. C. J. P. Spruit. They obtained convincing evridence that the pigment as first isolated by Bouman was phenazine-a-carboxy lic acid, and therefore closely related to chlororaphine. At that time war interfered with the work, and the results obtained remained unpublished.
منابع مشابه
A new pyoverdin from Pseudomonas aureofaciens.
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عنوان ژورنال:
- Journal of bacteriology
دوره 72 3 شماره
صفحات -
تاریخ انتشار 1956