Chloride dependence of growth in bacteria

Roeßler, Markus; Sewald, Xaver; Müller, Volker

doi:10.1016/s0378-1097(03)00509-3

Cited by 53 publications

(34 citation statements)

References 28 publications

(28 reference statements)

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“…The strains M4 and Col22 withstood high (6%) NaCl levels and in particular strain M4 grew well in up to 8% NaCl for 24 to 48 h. Hence, M4 may be defined as an halophilic strain and Col22 as an halotolerant strain 21 . Strains MA, M and O grew in NaCl concentrations from 0 to 3%, in agreement with other reported results showing that P. mirabilis strain AF008582 (DSM 4479) grows at levels of about 4% NaCl 15 .…”

Section: Discussionsupporting

confidence: 92%

Occurrence of Proteus mirabilis associated with two species of venezuelan oysters

Fernández-Delgado

Contreras

García-Amado

et al. 2007

Rev. Inst. Med. trop. S. Paulo

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SUMMARYThe fecal contamination of raw seafood by indicators and opportunistic pathogenic microorganisms represents a public health concern. The objective of this study was to investigate the presence of enteric bacteria colonizing oysters collected from a Venezuelan touristic area. Oyster samples were collected at the northwestern coast of Venezuela and local salinity, pH, temperature, and dissolved oxygen of seawater were recorded. Total and fecal coliforms were measured for the assessment of the microbiological quality of water and oysters, using the Multiple Tube Fermentation technique. Analyses were made using cultures and 16S rRNA gene sequencing. Diverse enrichment and selective culture methods were used to isolate enteric bacteria. We obtained pure cultures of Gram-negative straight rods with fimbriae from Isognomon alatus and Crassostrea rhizophorae. Our results show that P. mirabilis was predominant under our culture conditions. We confirmed the identity of the cultures by biochemical tests, 16S rRNA gene sequencing, and data analysis. Other enterobacteria such as Escherichia coli, Morganella morganii and Klebsiella pneumoniae were also isolated from seawater and oysters. The presence of pathogenic bacteria in oysters could have serious epidemiological implications and a potential human health risk associated with consumption of raw seafood.

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Section: Discussionsupporting

confidence: 92%

Occurrence of Proteus mirabilis associated with two species of venezuelan oysters

Fernández-Delgado

Contreras

García-Amado

et al. 2007

Rev. Inst. Med. trop. S. Paulo

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“…Other studies in prokaryotic organisms showed the importance of Cl − in the metabolism of different groups of halophilic prokaryotes, both archaeal and bacterial [reviewed by Muller & Oren, and Roessler, Sewald & Muller, ]. However, apart from the above‐mentioned work, there has been relatively little interest in the effects of Cl − in bacteria, an area which needs further development.…”

Section: Cl− Effects In Bacterial Cellsmentioning

confidence: 99%

The chloride anion as a signalling effector

Valdivieso

Santa‐Coloma

2019

Biological Reviews

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The specific role of the chloride anion (Cl−) as a signalling effector or second messenger has been increasingly recognized in recent years. It could represent a key factor in the regulation of cellular homeostasis. Changes in intracellular Cl− concentration affect diverse cellular functions such as gene and protein expression and activities, post‐translational modifications of proteins, cellular volume, cell cycle, cell proliferation and differentiation, membrane potential, reactive oxygen species levels, and intracellular/extracellular pH. Cl− also modulates functions in different organelles, including endosomes, phagosomes, lysosomes, endoplasmic reticulum, and mitochondria. A better knowledge of Cl− signalling could help in understanding the molecular and metabolic changes seen in pathologies with altered Cl− transport or under physiological conditions. Here we review relevant evidence supporting the role of Cl− as a signalling effector.

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“…(Supplementary Table 7). Strict chloride dependence of growth or significant stimulation was first reported for H. halophilus (Claus et al, 1983; Roeßler and Muller, 1998) and then it has also been described in other microorganisms including V. fischeri (Roeßler et al, 2003), at high salt concentrations. Interestingly, germination of endospores, activation of compatible solute transporters, flagella production and motility are among the specific physiological processes described as chloride-dependent (Dohrmann and Muller, 1999; Roeßler et al, 2000; Averhoff and Müller, 2010).…”

Section: Discussionmentioning

confidence: 89%

The Ecological Coherence of Temperature and Salinity Tolerance Interaction and Pigmentation in a Non-marine Vibrio Isolated from Salar de Atacama

et al. 2016

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The occurrence of microorganisms from the Vibrio genus in saline lakes from northern Chile had been evidenced using Numerical Taxonomy decades before and, more recently, by phylogenetic analyses of environmental samples and isolates. Most of the knowledge about this genus came from marine isolates and showed temperature and salinity to be integral agents in shaping the niche of the Vibrio populations. The stress tolerance phenotypes of Vibrio sp. Teb5a1 isolated from Salar de Atacama was investigated. It was able to grow without NaCl and tolerated up to 100 g/L of the salt. Furthermore, it grew between 17° and 49°C (optimum 30°C) in the absence of NaCl, and the range was expanded into cold temperature (4–49°C) in the presence of the salt. Other additional adaptive strategies were observed in response to the osmotic stress: pigment production, identified as the known antibacterial prodigiosin, swimming and swarming motility and synthesis of a polar flagellum. It is possible to infer that environmental congruence might explain the cellular phenotypes observed in Vibrio sp. considering that coupling between temperature and salinity tolerance, the production of antibacterial agents at higher temperatures, flagellation and motility increase the chance of Vibrio sp. to survive in salty environments with high daily temperature swings and UV radiation.

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Chloride dependence of growth in bacteria

Cited by 53 publications

References 28 publications

Occurrence of Proteus mirabilis associated with two species of venezuelan oysters

Occurrence of Proteus mirabilis associated with two species of venezuelan oysters

The chloride anion as a signalling effector

The Ecological Coherence of Temperature and Salinity Tolerance Interaction and Pigmentation in a Non-marine Vibrio Isolated from Salar de Atacama

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