| [genetic studies of photobacterium mandapamensis. ii. the classification of mutants with an altered luminescence intensity according to their sensitivity to exogenous aldehyde]. | the collection of 157 dark and dim photobacterium mandapamensis strains was divided into four groups using the addition of 0.2 ml of 0.15% myristis aldehyde to cell suspension. the luminescence did not change in the presence of the aldehyde in 76 mutants, it decreased in 30 mutants, it was 2--8-fold increased in 35 mutants, and it was increased more than 10-fold in 16 mutant strains. 19 strains of those having luminescence in the presence of the aldehyde have mutations in genes controlling the b ... | 1979 | 488711 |
| [luminescence and growth of photobacterium mandapamensis in periodic culture]. | the luminescent photobacterium mandapamensis, strain 54 (the collection of the institute of physics, siberian branch of the ussr academy of sciences), was isolated from the water of the pacific ocean in the equatorial zone and studied in the course of periodic cultivation. the dynamics of changes in the main parameters of the culture, such as luminescence, growth, respiration, heat emission etc., was investigated. the data obtained were used to establish a correlation between changes in these pa ... | 1978 | 713875 |
| [fatty acid makeup changes in the luminescent bacteria, photobacterium mandapamensis, in periodic cultivation]. | the fatty acid composition of the luminescent bacterium photobacterium mandapamensis and its spontaneous dark mutant was studied in dynamics. lipids of the both strains extracted with a methanol -- chloroform mixture contained the following fatty acids: lauric, tridecanoic, myristic, tetradecenic, pentadecanoic, pentadecenic, palmitic, palmitoleic, heptadecanoic, c17-cyclopropanoic, stearic, octadecenic, and nonadecanoic. the content of palmitoleic acid was the highest (57% of the total). not al ... | 1980 | 7207260 |
| [synthetic medium for photobacterium mandapamensis luminescent bacteria]. | | 1980 | 7207266 |
| [lipids of the luminescent bacteria photobacterium mandapamensis]. | the composition of lipids was studied in the luminescent bacterium photobacterium mandapamensis under the conditions of maximal luminescence. the synthesis of total lipids and poly-beta-hydroxybutyric acid (phba) was investigated in dynamics under the conditions of batch cultivation. the major class of lipids was polar lipids (84.3%) represented by phospholipids (phosphatidyl ethanolamine, phosphatidyl glycerol, cardiolipin, lysocardiolipin, lysophosphatidyl ethanolamine) and a minor nonidentifi ... | 1981 | 7219224 |
| [pyruvic acid formation by the luminescent bacterium photobacterium mandapamensis]. | | 1981 | 7321908 |
| [luciferase synthesis regulation in photobacterium mandapamensis]. | the synthesis of luciferase and the dynamics of luminescence were studied in the course of batch cultivation of the strain 54-k obtained from the wild strain of photobacterium mandapamensis after numerous passages. luciferase synthesis bvy the strain was not sensitive to the inhibitor contained in the growth medium and did not require the accumulation of an "audoinductor". since the intensity of luminescence and the content of luciferase per cell did change, the bacterium seemed to possess an ad ... | 1980 | 7412616 |
| phylogenetic analysis of the lux operon distinguishes two evolutionarily distinct clades of photobacterium leiognathi. | the luminous marine bacterium photobacterium mandapamensis was synonymized several years ago with photobacterium leiognathi based on a high degree of phenotypic and genetic similarity. to test the possibility that p. leiognathi as now formulated, however, actually contains two distinct bacterial groups reflecting the earlier identification of p. mandapamensis and p. leiognathi as separate species, we compared p. leiognathi strains isolated from light-organ symbiosis with leiognathid fishes (i.e. ... | 2004 | 15034641 |
| phylogenetic diversity and cosymbiosis in the bioluminescent symbioses of "photobacterium mandapamensis". | "photobacterium mandapamensis" (proposed name) and photobacterium leiognathi are closely related, phenotypically similar marine bacteria that form bioluminescent symbioses with marine animals. despite their similarity, however, these bacteria can be distinguished phylogenetically by sequence divergence of their luminescence genes, luxcdab(f)e, by the presence (p. mandapamensis) or the absence (p. leiognathi) of luxf and, as shown here, by the sequence divergence of genes involved in the synthesi ... | 2007 | 17369329 |
| phylogenetic analysis of the incidence of lux gene horizontal transfer in vibrionaceae. | horizontal gene transfer (hgt) is thought to occur frequently in bacteria in nature and to play an important role in bacterial evolution, contributing to the formation of new species. to gain insight into the frequency of hgt in vibrionaceae and its possible impact on speciation, we assessed the incidence of interspecies transfer of the lux genes (luxcdabeg), which encode proteins involved in luminescence, a distinctive phenotype. three hundred three luminous strains, most of which were recently ... | 2008 | 18359809 |
| utilization of mucus from the coral acropora palmata by the pathogen serratia marcescens and by environmental and coral commensal bacteria. | in recent years, diseases of corals caused by opportunistic pathogens have become widespread. how opportunistic pathogens establish on coral surfaces, interact with native microbiota, and cause disease is not yet clear. this study compared the utilization of coral mucus by coral-associated commensal bacteria ("photobacterium mandapamensis" and halomonas meridiana) and by opportunistic serratia marcescens pathogens. s. marcescens pdl100 (a pathogen associated with white pox disease of acroporid c ... | 2009 | 19395569 |
| catabolite regulation of enzymatic activities in a white pox pathogen and commensal bacteria during growth on mucus polymers from the coral acropora palmata. | colonization of host mucus surfaces is one of the first steps in the establishment of coral-associated microbial communities. coral mucus contains a sulfated glycoprotein (in which oligosaccharide decorations are connected to the polypeptide backbone by a mannose residue) and molecules that result from its degradation. mucus is utilized as a growth substrate by commensal and pathogenic organisms. two representative coral commensals, photobacterium mandapamensis and halomonas meridiana, differed ... | 2009 | 20095241 |
| phylogeny, genomics, and symbiosis of photobacterium. | photobacterium 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 organs of fish. seven photobacterium species are luminous via the activity of the lux genes, luxcdabeg. much recent progress has been made on the ... | 2010 | 20883503 |
| genome sequence of photobacterium mandapamensis strain svers.1.1, the bioluminescent symbiont of the cardinal fish siphamia versicolor. | photobacterium mandapamensis is one of three luminous photobacterium species able to form species-specific bioluminescent symbioses with marine fishes. here, we present the draft genome sequence of p. mandapamensis strain svers.1.1, the bioluminescent symbiont of the cardinal fish siphamia versicolor, the first genome of a symbiotic, luminous photobacterium species to be sequenced. analysis of the sequence provides insight into differences between p. mandapamensis and other luminous and symbioti ... | 2011 | 21478348 |
| natural replacement of vertically inherited lux-rib genes of photobacterium aquimaris by horizontally acquired homologues. | we report here the first instance of a complete replacement of vertically inherited luminescence genes by horizontally acquired homologues. different strains of photobacterium aquimaris contain homologues of the lux-rib genes that have a different evolutionary history. strain bs1 from the black sea contains a vertically inherited lux-rib operon, which presumably arose in the ancestor of this species, whereas the type strain nbrc 104633(t) , from sagami bay, lacks the vertically inherited lux-rib ... | 2012 | 23760826 |