Results 181 to 190 of about 8,078 (206)
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Continuous pollution monitoring using Photobacterium phosphoreum
Resources, Conservation and Recycling, 1996Abstract Photobacterium phosphoreum is a marine bacterium which is used extensively as a bioluminescent indicator of pollutants, where the presence of toxicants diminishes light output. To evaluate the utility of cell immobilisation in continuous toxicity testing, the sensitivity of P.
Uck-Han Chun +3 more
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Archives of Microbiology, 2022
This study investigated the impact of Brochothrix (B.) thermosphacta and Pseudomonas (Ps.) fragi on the transcriptomes of Photobacterium (P.) phosphoreum and P. carnosum on chicken meat under modified atmosphere (MA) and air atmosphere (AA). P. phosphoreum TMW2.2103 responded to MA with a reduced transcript number related to cell division and an ...
Philippa, Hauschild +2 more
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This study investigated the impact of Brochothrix (B.) thermosphacta and Pseudomonas (Ps.) fragi on the transcriptomes of Photobacterium (P.) phosphoreum and P. carnosum on chicken meat under modified atmosphere (MA) and air atmosphere (AA). P. phosphoreum TMW2.2103 responded to MA with a reduced transcript number related to cell division and an ...
Philippa, Hauschild +2 more
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Biochemistry, 1985
The properties of lumazine proteins purified from the marine bioluminescent bacteria Photobacterium phosphoreum, a psychrophile, and Photobacterium leiognathi, a relatively thermophilic species, are compared. An accurate 1:1 stoichiometry of binding of the ligand 6,7-dimethyl-8-ribityllumazine to each lumazine protein is established by back-titration ...
D J, O'Kane, J, Lee
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The properties of lumazine proteins purified from the marine bioluminescent bacteria Photobacterium phosphoreum, a psychrophile, and Photobacterium leiognathi, a relatively thermophilic species, are compared. An accurate 1:1 stoichiometry of binding of the ligand 6,7-dimethyl-8-ribityllumazine to each lumazine protein is established by back-titration ...
D J, O'Kane, J, Lee
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Photobacterium phosphoreum Toxicity Data Index
Water Quality Research Journal, 1991Abstract This toxicity data index gives a compilation of some 1350 acute toxicity data of individual organic compounds for the luminescent marine bacterium Photobacterium phosphoreum, commonly known as Microtox™ test. The index contains 5-min, 15-min and 30-min toxicity data in both logarithmic (log (L/mmol) and non-logarithmic (mg/L ...
Virginia S. Palabrica, Klaus L.E. Kaiser
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Physical characterization of lumazine proteins from Photobacterium
Biochemistry, 1985The physicochemical properties of Photobacterium lumazine proteins have been investigated. The molecular weights obtained by several physical techniques are in good agreement, and the averages are 2% and 8% higher than the minimum molecular weights from amino acid and ligand content.
D J, O'Kane, J, Lee
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Identification of n-nonaldehyde in photobacterium fisheri
Chemistry and Physics of Lipids, 1971Abstract The bioluminescent bacterium Photobacterium fisheri has been shown to contain free fatty aldehydes as naturally occurring lipids. These aldehydes were present in an amount equal to 0.43 μmole/100 mg lipid. The principal fatty aldehyde was shown to be n -nonaldehyde (9:0) with trace amounts of 16:0 and 16:1 also present.
W J, Ferrell +2 more
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Phylogeny, genomics, and symbiosis ofPhotobacterium
FEMS Microbiology Reviews, 2011Photobacterium comprises several species in Vibrionaceae, a large family of Gram-negative, facultatively aerobic, bacteria that commonly associate with marine animals. Members of the genus are widely distributed in the marine environment and occur in seawater, surfaces, and intestines of marine animals, marine sediments and saline lake water, and light
Henryk, Urbanczyk +2 more
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Bulletin of Environmental Contamination and Toxicology, 2010
The acute toxicities of five naphthoquinone compounds to Photobacterium phosphoreum were determined. We evaluated the mechanism of toxicity using the structure-activity relationship technique. The results showed that some factors, including the species of substituents, shape/size of molecule and oil-water partition coefficient (log P) played the ...
Feng, Ding +8 more
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The acute toxicities of five naphthoquinone compounds to Photobacterium phosphoreum were determined. We evaluated the mechanism of toxicity using the structure-activity relationship technique. The results showed that some factors, including the species of substituents, shape/size of molecule and oil-water partition coefficient (log P) played the ...
Feng, Ding +8 more
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Statistical Optimization of Bioluminescence of Photobacterium posphoreum KCTC2852.
Journal of Bioscience and Bioengineering, 2001In this study, media optimization by statistically designed experiments stimulated an increase in the intensity and stability of bioluminescence of Photobacterium phosphoreum KCTC 2852 during continuous cultivation. The Plackett-Burman design method selected two components (NaCl, yeast extract) among nine components of the seawater complete (SC) medium.
B, Lee, J, Lee, D, Shin, E, Kim
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A sediment-contact bioassay with Photobacterium phosphoreum
Environmental Toxicology and Chemistry, 1990Abstract A new, rapid test is reported for the toxicity screening of sediments using inhibition of Photobacterium phosphoreum. The bacteria are placed in direct contact with the sediment and the change in luminescence of the Photobacterium is used to determine the toxicity of the sediment relative to a control site. This sediment-contact
Henry Brouwer, Tom Murphy, Lucy McArdle
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