Results 41 to 50 of about 531 (195)

Deep Hypersaline Anoxic Basins as Untapped Reservoir of Polyextremophilic Prokaryotes of Biotechnological Interest [PDF]

Marine Drugs, 2020
Deep-sea hypersaline anoxic basins (DHABs) are considered to be among the most extreme ecosystems on our planet, allowing only the life of polyextremophilic organisms.
Stefano Varrella, Michael Tangherlini, Cinzia Corinaldesi   +2 more
doaj   +3 more sources

Physiological and genomic insights into abiotic stress of halophilic archaeon Natrinema altunense 4.1R isolated from a saline ecosystem of Tunisian desert

Genetica, 2023
Halophilic archaea are polyextremophiles with the ability to withstand fluctuations in salinity, high levels of ultraviolet radiation, and oxidative stress, allowing them to survive in a wide range of environments and making them an excellent model for ...
Cherif, Ameur, Mahjoubi, Mouna, Boussetta, Ayoub, Sghaier, Haitham, Youssef, Noha, Linares-Pastén, Javier A., Ouzari, Hadda Imene, Najjari, Afef, Belloum, Rahma   +8 more
core   +2 more sources

In vitro biosynthesis of Ag, Au and Te-containing nanostructures by Exiguobacterium cell-free extracts

BMC Biotechnology, 2020
Background The bacterial genus Exiguobacterium includes several species that inhabit environments with a wide range of temperature, salinity, and pH. This is why the microorganisms from this genus are known generically as polyextremophiles.
Javier Orizola, Mirtha Ríos-Silva, Claudia Muñoz-Villagrán, Esteban Vargas, Claudio Vásquez, Felipe Arenas   +5 more
doaj   +2 more sources

Nucleotide Second Messenger-Based Signaling in Extreme Acidophiles of the Acidithiobacillus Species Complex: Partition Between the Core and Variable Gene Complements [PDF]

Frontiers in Microbiology, 2019
Cyclic and linear nucleotides are key elements of the signal transduction networks linking perception of the environment to specific cellular behavior of prokaryotes. These molecular mechanisms are particularly important in bacteria exposed to different,
Ana Moya-Beltrán, Ana Moya-Beltrán, Ana Moya-Beltrán, Camila Rojas-Villalobos, Camila Rojas-Villalobos, Mauricio Díaz, Nicolás Guiliani, Raquel Quatrini, Raquel Quatrini, Matías Castro, Matías Castro   +10 more
doaj   +4 more sources

Extremophiles: photosynthetic systems in a high-altitude saline basin (Altiplano, Chile) [PDF]

International Aquatic Research, 2016
Studies of different hypersaline systems have revealed various types of limitation. We evaluated the phototrophic microbial assemblages over a whole seasonal cycle (wet vs dry) in the Salar de Alconcha, a high-altitude (4250 m altitude) saline basin ...
Alejandro Angel, Irma Vila, Venecia Herrera   +2 more
doaj   +2 more sources

UV-Resistant Actinobacteria from High-Altitude Andean Lakes: Isolation, Characterization and Antagonistic Activities [PDF]

Photochemistry and Photobiology, 2017
Polyextremophiles are present in a wide variety of extreme environments in which they must overcome various hostile conditions simultaneously such as high UVB radiation, extreme pHs and temperatures, elevated salt and heavy-metal concentration, low ...
Kurth, Daniel, Albarracín, Virginia Helena, Kurth, Daniel German, María Cecilia Rasuk, Luciano Raúl Portero, Farías, María Eugenia, Virginia Helena Albarracín, Rasuk, María Cecilia, Daniel Kurth, Ferrer, Gabriela Mónica, Gabriela Mónica Ferrer, María Eugenia Farías, Portero, Luciano Raúl   +12 more
core   +2 more sources

Singular adaptations in the carbon assimilation mechanism of the polyextremophile cyanobacterium Chroococcidiopsis thermalis [PDF]

Photosynthesis Research, 2023
Abstract Cyanobacteria largely contribute to the biogeochemical carbon cycle fixing ~ 25% of the inorganic carbon on Earth. However, the carbon acquisition and assimilation mechanisms in Cyanobacteria are still underexplored regardless of being of great importance for shedding light on the origins of autotropism ...
Pere Aguiló‐Nicolau, Jeroni Galmés, Giacomo Fais, Sebastià Capó‐Bauçà, Giacomo Cao, Concepción Íñiguez   +5 more
openalex   +6 more sources

Protease Production from Polyextremophilic Bacteria

International Journal of Current Microbiology and Applied Sciences, 2016
A B S T R A C T Extremophilic organisms which are capable of surviving in two different extreme environmental conditions simultaneously are known as polyextremophiles. These organisms are known to be potent producers of bioactive compounds namely enzymes
J. Sharma, N. Mathur, A. Singh
semanticscholar   +2 more sources

Synthesis of salt-stable fluorescent nanoparticles (quantum dots) by polyextremophile halophilic bacteria [PDF]

Scientific Reports, 2019
AbstractHere we report the biological synthesis of CdS fluorescent nanoparticles (Quantum Dots, QDs) by polyextremophile halophilic bacteria isolated from Atacama Salt Flat (Chile), Uyuni Salt Flat (Bolivia) and the Dead Sea (Israel). In particular, a Halobacillus sp. DS2, a strain presenting high resistance to NaCl (3–22%), acidic pH (1–4) and cadmium
Nicolás Bruna, Bernardo Collao, Alejandra Tello, P. Caravantes, N. Díaz-Silva, J. P. Monrás, Nicolás Órdenes-Aenishanslins, Marcos Flores, Rodrigo Espinoza-González, Denisse Bravo, José M. Pérez‐Donoso   +10 more
openalex   +4 more sources

Concurrent metabolism of pentose and hexose sugars by the polyextremophile Alicyclobacillus acidocaldarius

Journal of Industrial Microbiology and Biotechnology, 2017
Abstract Alicyclobacillus acidocaldarius is a thermoacidophilic bacterium capable of growth on sugars from plant biomass. Carbon catabolite repression (CCR) allows bacteria to focus cellular resources on a sugar that provides efficient growth, but also allows sequential, rather than simultaneous use when more than one sugar is present ...
Brady D. Lee, William A. Apel, Linda C. DeVeaux, Peter P. Sheridan   +3 more
openalex   +4 more sources