Journal ArticleDOI
Potential of halotolerant and halophilic microorganisms for biotechnology.
Rosa Margesin,Franz Schinner +1 more
TLDR
Halotolerant microorganisms play an essential role in food biotechnology for the production of fermented food and food supplements and the degradation or transformation of a range of organic pollutants and theproduction of alternative energy are other fields of applications of these groups of extremophiles.Abstract:
Halotolerant or halophilic microorganisms, able to live in saline environments, offer a multitude of actual or potential applications in various fields of biotechnology. The technical applications of bacteriorhodopsin comprise holography, spatial light modulators, optical computing, and optical memories. Compatible solutes are useful as stabilizers of biomolecules and whole cells, salt antagonists, or stress-protective agents. Biopolymers, such as biosurfactants and exopolysaccharides, are of interest for microbially enhanced oil recovery. Other useful biosubstances are enzymes, such as new isomerases and hydrolases, that are active and stable at high salt contents. Halotolerant microorganisms play an essential role in food biotechnology for the production of fermented food and food supplements. The degradation or transformation of a range of organic pollutants and the production of alternative energy are other fields of applications of these groups of extremophiles.read more
Citations
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Journal ArticleDOI
Phylogenetic diversity of bacterial and archaeal communities inhabiting the saline Lake Red located in Sovata, Romania
Andrea K. Borsodi,Tamás Felföldi,István Máthé,Vivien Bognár,Mónika Knáb,Gergely Krett,Laura Jurecska,Erika Tóth,Károly Márialigeti +8 more
TL;DR: According to the results of 16S rRNA gene-based denaturing gradient gel electrophoresis (DGGE), the richness of Bacteria was higher than Archaea on the basis of the number and position of dominant bands in the gel.
Journal ArticleDOI
Metabolomic characterization of halophilic bacterial isolates reveals strains synthesizing rare diaminoacids under salt stress.
TL;DR: A metabolomic analysis of representative halophilic bacterial isolates from a saltern region in India revealed salt-dependent increase in the levels of metabolites that are directed from the glycolytic pathway, pentose phosphate pathway and citric acid cycle, rightly suggesting that at any salt-stress condition provided, cellular homeostasis was favored over growth.
Journal ArticleDOI
Purification and characterization of halo-alkali-thermophilic protease from Halobacterium sp. strain HP25 isolated from raw salt, Lake Qarun, Fayoum, Egypt
TL;DR: Its stability and activity in the presence of organic solvents and detergents also allow the use of this enzyme for further novel applications and as an additive in detergent formulations.
Journal ArticleDOI
Culturable halophilic bacteria inhabiting Algerian saline ecosystems: A source of promising features and potentialities
Taha Menasria,Taha Menasria,Mercedes Monteoliva-Sánchez,Leyla Benammar,Mabrouka Benhadj,Ammar Ayachi,Hocine Hacene,Ana González-Paredes,Margarita Aguilera +8 more
TL;DR: This study on halophilic bacteria of unexplored saline niches provides potential sources ofBiocatalysts and novel bioactive metabolites as well as promising candidates of biocontrol agents and eco-friendly tools for heavy metal bioremediation.
Journal ArticleDOI
Halomonas rifensis sp. nov., an exopolysaccharide-producing, halophilic bacterium isolated from a solar saltern.
TL;DR: A polyphasic taxonomic study was conducted on strain HK31(T), a moderately halophilic bacterium isolated from a solar saltern in Chefchaouen, Morocco, which represents a novel species of the genus Halomonas, for which the nameHalomonas rifensis is proposed.
References
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Journal ArticleDOI
Microbial production of surfactants and their commercial potential.
JD Desai,Ibrahim M. Banat +1 more
TL;DR: Biosurfactants are more effective, selective, environmentally friendly, and stable than many synthetic surfactants, and the most promising applications are cleaning of oil-contaminated tankers, oil spill management, transportation of heavy crude oil, enhanced oil recovery, recovery of crude oil from sludge, and bioremediation of sites contaminated with hydrocarbons, heavy metals, and other pollutants.
Journal ArticleDOI
Potential commercial applications of microbial surfactants.
TL;DR: Biosurfactants are amphiphilic compounds of microbial origin with considerable potential in commercial applications within various industries and have advantages over their chemical counterparts in biodegradability and effectiveness at extreme temperature or pH and in having lower toxicity.
Journal ArticleDOI
Biology of moderately halophilic aerobic bacteria
TL;DR: The moderately halophilic heterotrophic aerobic bacteria form a diverse group of microorganisms and approaches to the study of genetic processes have recently been developed, opening the way toward an understanding of haloadaptation at the molecular level.
Journal ArticleDOI
Bioenergetic Aspects of Halophilism
TL;DR: Examinination of microbial diversity in environments of increasing salt concentrations indicates that certain types of dissimilatory metabolism do not occur at the highest salinities.
Journal ArticleDOI
Halophilic adaptation of enzymes.
TL;DR: It is described how thermodynamic observations, such as parameters pertaining to solvent–protein interactions or enzyme-unfolding kinetics, depend strongly on solvent composition and reveal the important role played by water and ion binding to halophilic proteins.
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