Detection of pigment precursors in white clinical strains of Serratia marcescens.
نویسندگان
چکیده
Filter paper strips containing a pigment precursor extracted from Serratia marcescens strain 933 were used to determine whether white, clinical S. marcescens strains could form pigment syntrophically. In all, 114 strains (113 of clinical origin) were tested, and 99% were found to develop colors ranging from violets to pinks.
منابع مشابه
Factors influencing pigment production in a mutant strain of Serratia marcescens.
A high frequency of mutations affecting color production is characteristic of the HY strain of Serratia marcescens. After ultraviolet irradiation, mutants ranging from white, through pink and orange, to deep red shades darker than the wild type can be obtained (Labrum and Bunting, 1953). Many of the white and pink mutants emit diffusible substances which can be utilized by other color mutants g...
متن کاملCell surface hydrophobicity of pigmented and nonpigmented clinical Serratia marcescens strains.
The cell surface hydrophobicity of 10 pigmented and 4 nonpigmented clinical Serratia marcescens strains was studied, based on the ability of the strains to adhere to hydrocarbons and to polystyrene. The cell surface hydrophobicity depended greatly on growth temperature; all of the strains tested were adherent following growth at 30 degrees C, whereas none was adherent following growth at 38 deg...
متن کاملStudies on pigmentation of serratia marcescens. III. The characteristics of an orange variant.
The production of color variants of Serratia marcescens by means of ultraviolet light irradiation has been reported by Labrum and Bunting (1953). These variants exhibited several shades of pink, orange, or white pigmentation, and differed markedly from the natural or wild-type red color. Rizki (1954a) demonstrated that several of these pink, orange, and white variants were capable of inducing r...
متن کاملMetabolic and regulatory engineering of Serratia marcescens: mimicking phage-mediated horizontal acquisition of antibiotic biosynthesis and quorum-sensing capacities.
Serratia marcescens is an important cause of opportunistic human infections. Many, but not all, strains produce prodigiosin, a secondary metabolic, red-pigment antibiotic, the biosynthesis of which is directed by the pig gene cluster. Quorum sensing (QS) involves the production and detection of chemical signal molecules as a means to regulate gene expression in response to population cell densi...
متن کاملThe inhibitory effect of a Lactobacillus acidophilus derived biosurfactant on Serratia marcescens biofilm formation
Objective(s):Serratia marcescens is one of the nosocomial pathogen. The ability to form biofilm is an important feature in the pathogenesis of S. marcescens. The aim of this study was to determine the anti-adhesive properties of a biosurfactant isolated from Lactobacillus acidophilus ATCC 4356, on S. marcescens strains. Materials and Methods: Lactobacillus acidophilus ATCC 4356, was selected a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of clinical microbiology
دوره 9 2 شماره
صفحات -
تاریخ انتشار 1979