Production of reddish-brown pigment fromdl-tryptophan by enterobacteria of the Proteus-Providencia group

Polster, M; Svobodová, M

doi:10.1007/bf02144835

Cited by 22 publications

(8 citation statements)

References 2 publications

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“…The strain C1112 T could be differentiated from the closest phylogenetic relative, Providencia stuartii KCTC 2568 T , by means of verious phenotypic characteristics (Table 1). Consistent with the description of other Providencia species, the strain C1112 T developed a characteristic smell on agar containing amino acids (Polster and Svobodova, 1964;Somvanshi et al, 2006 respectively. The phylogenetic tree based on the concatenated 16S rRNA gene and five housekeeping genes was similar to the phylogenetic tree given by Juneja and Lazzaro (2009).…”

Section: Morphology Physiology and Biochemical Characteristicssupporting

confidence: 81%

Providencia thailandensis sp. nov., isolated from seafood processing wastewater

Khunthongpan

Sumpavapol

Tanasupawat

2013

J. Gen. Appl. Microbiol.

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Section: Morphology Physiology and Biochemical Characteristicssupporting

confidence: 81%

Providencia thailandensis sp. nov., isolated from seafood processing wastewater

Khunthongpan

Sumpavapol

Tanasupawat

2013

J. Gen. Appl. Microbiol.

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“…Candida pulcherrimia produces the red pigment pulcherrimin (3). Some Phycomycetes (24), Ascomycetes (24), Basidiomycetes (23), and Schizomycetes (2,11,17,19) produce reddish-brown pigment when grown on media containing tryptophan. Schindler and Zahner (21) reported that a Deuteromycetes, namely Candida lipolytica, produced reddish-brown pigments after growing on a tryptophan medium.…”

Section: Introduction Materials and Methodsmentioning

confidence: 99%

Pigmentation and autofluorescence of Candida species after growth on tryptophan media

Chaskes¹,

Phillips²

1974

Can. J. Microbiol.

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Candida albicans and six other medically important Candida species were cultured on glucose–salts–biotin media containing tryptophan as the major nitrogen source. Candida albicans, C. tropicalis, and C. parapsilosis produced a pink pigment; C. krusei, C. pseudotropicalis, and C. gulliermondii formed brown pigments. Pigmentation of C. stellatoidea was variable, some strains produced brown pigments and others a pink pigment. Production of pink pigment was catalyzed by light. Cultures incubated in the dark produced only trace amounts of the pink pigment. Iron enhanced pigment production. Intense autofluorescence was observed for strains producing the brown pigment and weak autofluorescence for strains producing the pink pigment.

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“…The genus Morganella has traditionally resided in the tribe Proteeae of the family Enterobacteriaceae along with two other genera, Proteus and Providencia (5). Most members of the Proteus-Providencia-Morganella group share a number of biochemical features in common, including a positive methyl red reaction, urease activity, growth in KCN broth, and motility (5); some phenotypic properties, most notably production of phenylalanine deaminase (5), degradation of tyrosine crystals (18), and elaboration of a reddish brown pigment in the presence of DL-tryptophan (16), either are unique features of this group or are traits infrequently observed in other members of the family Enterobacteriaceae. The Proteeae are important human pathogens causing a variety of nosocomial illnesses including urinary tract disease, septicemia, and wound infections.…”

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confidence: 99%

Biochemical investigations of biogroups and subspecies of Morganella morganii

et al. 1996

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We determined the subspecies and biogroup designations for 73 strains of Morganella morganii principally recovered from routine clinical specimens. On the basis of trehalose fermentation, 90% of all strains were identified as M. morganii subsp. morganii (trehalose negative), while the remaining 10% were designated M. morganii subsp. sibonii (trehalose positive). Using three tests (ornithine decarboxylase [ODC] and lysine decarboxylase [LDC] activities and susceptibility to tetracycline), we determined the biogroup designations for these 73 strains. Four of the seven recognized biogroups within the genus Morganella were found in the study, with biogroup A (ODC positive [ODC ؉ ], LDC negative [LDC ؊ ]) predominating (78%); all M. morganii subsp. sibonii strains were found to belong to biogroup G (ODC ؉ , LDC ؊ ). Rapid glycerol fermentation (24 h) was linked to nonmotility and biogroup B strains (ODC ؉ , LDC ؉ ). LDC activity but not tetracycline resistance appeared to be associated with the possession of a 40-to 45-MDa plasmid. The use of three commercial systems (API ZYM, API 50 CH, and Biolog GN) failed to detect any new biochemical tests useful for subspecies identification, with the possible exception of L-phenylalanine utilization as a sole carbon source in the Biolog GN system. No Morganella strain was found to invade either HEp-2 or Vero cell lines, but four of seven M. morganii subsp. morganii strains were cytotoxic on sheets of both cells. This cytotoxic activity appeared to correlate with the rapid expression of beta-hemolytic activity.

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Production of reddish-brown pigment fromdl-tryptophan by enterobacteria of the Proteus-Providencia group

Cited by 22 publications

References 2 publications

Providencia thailandensis sp. nov., isolated from seafood processing wastewater

Providencia thailandensis sp. nov., isolated from seafood processing wastewater

Pigmentation and autofluorescence of Candida species after growth on tryptophan media

Biochemical investigations of biogroups and subspecies of Morganella morganii

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