Characterization of Chromatium salexigens sp. nov., a Halophilic Chromatiaceae Isolated from Mediterranean Salinas

Cartigny, Pierre; Baulaigue, Renée; Matheron, Robert

doi:10.1016/s0723-2020(88)80014-6

Cited by 73 publications

(44 citation statements)

References 17 publications

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“…Thin greenish and reddish laminated mats have been observed in particular hypersaline lagoons in the commercial salterns in the Salin-de-Giraud (Camargue, France) (Cornée, 1983;Caumette et al, 1988Caumette et al, , 1991Caumette et al, , 1994. These mats are present for most of the year and are fully developed in spring and summer, from May to September.…”

Section: Description Of Microbial Mats and Isolation Of Pure Strainsmentioning

confidence: 99%

“…In these lagoons the salinity of the water column (20-40 cm depth) ranged from 130 to 200 %. These microbial mats consisted principally of a green layer of cyanobacteria overlying a purple layer of phototrophic sulfur bacteria belonging to the family Chromatiaceae (Caumette et al, 1988(Caumette et al, , 1991(Caumette et al, , 1994.…”

Section: Description Of Microbial Mats and Isolation Of Pure Strainsmentioning

confidence: 99%

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Isolation and characterization of spirilloid purple phototrophic bacteria forming red layers in microbial mats of Mediterranean salterns: description of Halorhodospira neutriphila sp. nov. and emendation of the genus Halorhodospira

Hirschler-Réa

Matheron

Riffaud

et al. 2003

International Journal of Systematic and Evolutionary Microbiology

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Microbial mats developing in the hypersaline lagoons of a commercial saltern in the Salin-de-Giraud (Rhô ne delta) were found to contain a red layer fully dominated by spirilloid phototrophic purple bacteria underlying a cyanobacterial layer. From this layer four strains of spirilloid purple bacteria were isolated, all of which were extremely halophilic. All strains were isolated by using the same medium under halophilic photolithoheterotrophic conditions. One of them, strain SG 3105 was a purple non-sulfur bacterial strain closely related to Rhodovibrio sodomensis with a 16S rDNA sequence similarity of 98?8 %. The three other isolated strains, SG 3301 T , SG 3302 and SG 3304, were purple sulfur bacteria and were found to be very similar. The cells were motile by a polar tuft of flagella. Photosynthetic intracytoplasmic membranes of the lamellar stack type contained BChl a and spirilloxanthin as the major carotenoid. Phototrophic growth with sulfide as electron donor was poor; globules of elemental sulfur were present outside the cells. In the presence of sulfide and CO 2 good growth occurred with organic substrates. Optimum growth occurred in the presence of 9-12 % (w/v) NaCl at neutral pH (optimal pH 6?8-7) and at 30-35˚C. The DNA base composition of strains SG 3301 T and SG 3304 were 74?5 and 74?1 mol% G+C, respectively.According to the 16S rDNA sequences, strains SG 3301 T and SG 3304 belonged to the genus Halorhodospira, but they were sufficiently separated morphologically, physiologically and genetically from other recognized Halorhodospira species to be described as a new species of the genus. They are, therefore, described as Halorhodospira neutriphila sp. nov. with strain SG 3301 T as the type strain (=DSM 15116 T ).

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Section: Description Of Microbial Mats and Isolation Of Pure Strainsmentioning

confidence: 99%

Section: Description Of Microbial Mats and Isolation Of Pure Strainsmentioning

confidence: 99%

Isolation and characterization of spirilloid purple phototrophic bacteria forming red layers in microbial mats of Mediterranean salterns: description of Halorhodospira neutriphila sp. nov. and emendation of the genus Halorhodospira

Hirschler-Réa

Matheron

Riffaud

et al. 2003

International Journal of Systematic and Evolutionary Microbiology

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“…Utilization of carbon sources and electron donors was tested in triplicate in basal liquid medium with substrate concentrations as given in Table 1. Growth tests for utilizable substrates, the utilization of optimum concentrations of NaCl and MgCl, .6H,O, optimum pH, optimum temperature and sulfide tolerance were performed in completely filled 25 ml screw-cap tubes as described by Caumette et al (1988).…”

Section: Methodsmentioning

confidence: 99%

“…The laminated microbial mat was composed of halophilic phototrophic purple bacteria, as described previously (Caumette et al, 1988(Caumette et al, , 1991a. From the anoxic sediment, rich in acid-volatile sulfide due to a high sulfate reduction activity , the enrichment culture of fermentative bacteria showed a large variety of cell types.…”

Section: Enrichment and Isolationmentioning

confidence: 99%

“…Many types of halophilic bacteria have been isolated from the Dead Sea, inland salt lakes or subterranean waters in oilfields (Oren, 1992 ;Ollivier et al, 1994 ;Rainey et al, 1995 ;Imhoff & Siilling, 1996 ;Ravot et al, 1997). Some of them were isolated from thalassohaline environments such as solar salterns ; they include phototrophic bacteria of the family Chromatiaceae (Caumette et al, 1988(Caumette et al, , 1991a(Caumette et al, , 1997, sulfate-reducing bacteria (Caumette et al, 1991 b) and fermentative bacteria (Zhilina & Zavarzin, 1990 ;Zhilina et al, 1991aZhilina et al, , b, 1992Liaw & Mah, 1992;Simankova et al, 1993). During ecological investigations in solar salterns of the French Mediterranean coast (Salin-de-Giraud, Camargue, Rhiine Delta), we isolated several new species of phototrophs and sulfate reducers that developed at the sediment surface of certain hypersaline ponds characterized by gypsum deposits and (Caumette, 1993 ;Caumette et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

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Haloanaerobacter salinarius sp. nov., a novel halophilic fermentative bacterium that reduces glycine-betaine to trimethylamine with hydrogen or serine as electron donors; emendation of the genus Haloanaerobacter

Mouné

Manac′h

Hirschler

et al. 1999

International Journal of Systematic and Evolutionary Microbiology

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A novel halophilic fermentative bacterium has been isolated from the black sediment below a gypsum crust and a microbial m a t in hypersaline ponds of Mediterranean salterns. Morphologically, physiologically and genetically this organism belongs to the genus Haloanaerobacter. Haloanaerobacter strain SG 3903T (T = type strain) is composed of non-sporulating long flexible rods with peritrichous flagella, able to grow in the salinity range of 5-30% NaCI, with an optimum a t 14-15%. The strain grows by fermenting carbohydrates or by using the Stickland reaction with either serine or H, as electron donors and glycine-betaine as acceptor, which is reduced to trimethylamine. The two species described so far in the genus Haloanaerobacter are not capable of Stickland reaction with glycine-betaine + serine; however, Haloanaerobacter chitinovorans can use glycine-betaine with H, as electron donor. Strain SG 3903T thus represents the first described strain in the genus Haloanaerobacter capable of the Stickland reaction with two amino acids. Although strain SG 3903T showed 67 O/ O DNA-DNA relatedness to H. chitinovorans, it is physiologically sufficiently different from the two described species to be considered as a new species which has been named Haloanaerobacter salinarius sp. nov.

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Phototrophic Purple and Green Bacteria in Marine and Hypersaline Environments

Imhoff

2003

Encyclopedia of Environmental Microbiology

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Characterization of Chromatium salexigens sp. nov., a Halophilic Chromatiaceae Isolated from Mediterranean Salinas

Cited by 73 publications

References 17 publications

Isolation and characterization of spirilloid purple phototrophic bacteria forming red layers in microbial mats of Mediterranean salterns: description of Halorhodospira neutriphila sp. nov. and emendation of the genus Halorhodospira

Isolation and characterization of spirilloid purple phototrophic bacteria forming red layers in microbial mats of Mediterranean salterns: description of Halorhodospira neutriphila sp. nov. and emendation of the genus Halorhodospira

Haloanaerobacter salinarius sp. nov., a novel halophilic fermentative bacterium that reduces glycine-betaine to trimethylamine with hydrogen or serine as electron donors; emendation of the genus Haloanaerobacter

Phototrophic Purple and Green Bacteria in Marine and Hypersaline Environments

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