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Researchers at University of Ljubljana Target Vibrionaceae (Microbial Ecophysiology of Vibrio ruber)

July 15, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Proteobacteria have been published. According to news originating from Ljubljana, Slovenia, by NewsRx correspondents, research stated, "Bacteria use different adaptation strategies to survive environmental perturbations. In this minireview, adaptation strategies of new red-pigmented Vibrio ruber isolated from coastal environments to different environmental stresses (i.e. salinity, viscosity, UV light, mitomycin C, nutrient availability and temperature) are reviewed."

Our news journalists obtained a quote from the research from the University of Ljubljana, "To cope with environmental stresses Vibrio ruber uses several different adaptive strategies. For example, lipid composition as well as phase behaviour are strongly dependent on salt concentration. Vibrio ruber membrane has no hydroxy fatty acids, but exceptionally high lysolipid content compared to other related Vibrio species. Inorganic nutrient uptake by bacteria is selective, depends on environmental conditions and varies several fold with environmental perturbations. Protein composition, carbon flow through the central metabolic pathways, energy generation as well as secondary metabolite production adapt readily to stress conditions. The activity of glucose-6-phosphate dehydrogenase proved to be a good indicator of Vibrio ruber stress. Cells are able to modulate their local viscosity in response to variations of environmental viscosity. The bacterium harbours several viral genetic elements in its genome, which could be induced by mitomycin C. Environmental conditions during growth of bacteria have a significant effect on lysate carbon turnover. Secondary metabolite prodigiosin confers protection against UV in the environment, which adds to the known repertoire of prodigiosin ecophysiological functions."

According to the news editors, the research concluded: "Vibrio ruber in its short acquaintance with the scientific community (less than ten years) has proven to be an immensely valuable model system for ecophysiological studies of bacteria."

For more information on this research see: Microbial Ecophysiology of Vibrio ruber. Food Technology and Biotechnology, 2014;52(2):198-203. Food Technology and Biotechnology can be contacted at: Faculty Food Technology Biotechnology, Univ Zagreb, Kacieceva 23, 41000 Zagreb, Croatia (see also Proteobacteria).

The news correspondents report that additional information may be obtained from T. Danevcic, Univ Ljubljana, Biotech Fac, Dept. of Food Sci & Technol, Chair Microbiol, SI-1000 Ljubljana, Slovenia. Additional authors for this research include M. Boric and D. Stopar.

Keywords for this news article include: Europe, Slovenia, Ljubljana, Prodigiosin, Vibrionaceae, Biological Pigments, Gammaproteobacteria, Gram-Negative Bacteria, Gram-Negative Facultatively Anaerobic Rods

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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