Production of yellow-green fluorescent pigment by Pseudomonas fluorescens
نویسندگان
چکیده
منابع مشابه
Cyanide production by Pseudomonas fluorescens and Pseudomonas aeruginosa.
Of 200 water isolates screened, five strains of Pseudomonas fluorescens and one strain of Pseudomonas aeruginosa were cyanogenic. Maximum cyanogenesis by two strains of P. fluorescens in a defined growth medium occurred at 25 to 30 degrees C over a pH range of 6.6 to 8.9. Cyanide production per cell was optimum at 300 mM phosphate. A linear relationship was observed between cyanogenesis and the...
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The biosynthesis of a yellow-green, fluorescent, water-soluble pigment by Pseudomonas jluorescens occurred only when the bacteria were iron-deficient and was not directly influenced by the nature of the organic carbon source. The pigment formed a very stable Fe3+ complex and was purified in this form. Pseudomonasfluorescens produced only one molecular species of fluorescent pigment; however, it...
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By a simple modification, common commercial dehydrated laboratory media can be used for the evaluation of fluorescent pigment excretion by Pseudomonas species. The addition of sufficient sterile egg white or of the iron-binding egg white protein, conalbumin, to bind all the iron in these media converted them to efficient diagnostic media. The amount of egg white found to be satisfactory was 10%...
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Dimerization-dependent fluorescent proteins (ddFP) are a recently introduced class of genetically encoded reporters that can be used for the detection of protein interactions in live cells. The progenitor of this class of tools was a red fluorescent ddFP (ddRFP) derived from a homodimeric variant of Discosoma red fluorescent protein. Here, we describe the engineering and application of an expan...
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Glucose oxidation by Pseudomonas Jluorescens (1) and Pseudomonas aeruginosa (2) has been shown to proceed via gluconate to 2-ketogluconate without the involvement of phosphorylated intermediates. 2-Ketogluconate is oxidized further in growing cultures (3) and resting cell suspensions (4), but attempts to obtain dried cell preparations or cell-free extracts which oxidize 2-ketogluconate have bee...
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ژورنال
عنوان ژورنال: Brazilian Archives of Biology and Technology
سال: 2006
ISSN: 1516-8913
DOI: 10.1590/s1516-89132006000400009