Results 41 to 50 of about 310 (132)

Determination of the Residual Anthracene Concentration in Cultures of Haloalkalitolerant Actinomycetes by Excitation Fluorescence, Emission Fluorescence, and Synchronous Fluorescence: Comparative Study

Journal of Analytical Methods in Chemistry, Volume 2016, Issue 1, 2016., 2016
Polycyclic aromatic hydrocarbons (PAHs) are compounds that can be quantified by fluorescence due to their high quantum yield. Haloalkalitolerant bacteria tolerate wide concentration ranges of NaCl and pH. They are potentially useful in the PAHs bioremediation of saline environments.
Reyna del Carmen Lara-Severino, Miguel Ángel Camacho-López, Jessica Marlene García-Macedo, Leobardo M. Gómez-Oliván, Ángel H. Sandoval-Trujillo, Keila Isaac-Olive, Ninfa Ramírez-Durán, Miguel de la Guardia   +7 more
wiley   +1 more source

Halophiles as a source of polyextremophilic α-amylase for industrial applications

AIMS Microbiology, 2016
Halophiles are perceived as an excellent source of novel enzymes possessing inherent ability to function under saline and hypersaline environment conditions. The article covers and puts in perspective the structural and biocatalytic features of α-amylases from halophilic sources.
Sumit Kumar, Jasneet Grewal, Ayesha Sadaf, R. Hemamalini, Sunil K. Khare   +4 more
openaire   +2 more sources

Unique prokaryotic consortia in geochemically distinct sediments from Red Sea Atlantis II and discovery deep brine pools.

PLoS ONE, 2012
The seafloor is a unique environment, which allows insights into how geochemical processes affect the diversity of biological life. Among its diverse ecosystems are deep-sea brine pools - water bodies characterized by a unique combination of extreme ...
Rania Siam, Ghada A Mustafa, Hazem Sharaf, Ahmed Moustafa, Adham R Ramadan, Andre Antunes, Vladimir B Bajic, Uli Stingl, Nardine G R Marsis, Marco J L Coolen, Mitchell Sogin, Ari J S Ferreira, Hamza El Dorry   +12 more
doaj   +1 more source

Genomic features of lichen‐associated black fungi

IUBMB Life, Volume 77, Issue 1, January 2025.
Abstract Lichens are mutualistic associations consisting of a primary fungal host, and one to few primary phototrophic symbiont(s), usually a green alga and/or a cyanobacterium. They form complex thallus structures, which provide unique and stable habitats for many other microorganisms. Frequently isolated from lichens are the so‐called black fungi, or
Victoria Keller, Anjuli Calchera, Jürgen Otte, Imke Schmitt   +3 more
wiley   +1 more source

Purification and Characterization of a Polyextremophilic α‐Amylase from an Obligate Halophilic Aspergillus penicillioides Isolate and Its Potential for Souse with Detergents

BioMed Research International, Volume 2015, Issue 1, 2015., 2015
An extracellular α‐amylase from the obligate halophilic Aspergillus penicillioides TISTR3639 strain was produced and enriched to apparent homogeneity by ammonium sulfate precipitation and Sephadex G100 gel filtration column chromatography. The mass of the purified amylase was estimated to be 42 kDa by SDS‐PAGE.
Imran Ali, Ali Akbar, Mohammad Anwar, Sehanat Prasongsuk, Pongtharin Lotrakul, Hunsa Punnapayak, Subash C. B. Gopinath   +6 more
wiley   +1 more source

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
N. Bruna, B. Collao, A. Tello, P. Caravantes, N. Díaz-Silva, J. P. Monrás, N. Órdenes-Aenishanslins, M. Flores, R. Espinoza-Gonzalez, D. Bravo, J. M. Pérez-Donoso   +10 more
openaire   +3 more sources

Characterization of Skoliomonas gen. nov., a haloalkaliphilic anaerobe related to barthelonids (Metamonada)

Journal of Eukaryotic Microbiology, Volume 71, Issue 6, November/December 2024.
Abstract Metamonads are a large and exclusively anaerobic group of protists. Additionally, they are one of the three clades proposed to ancestrally possess an “excavate” cell morphology, with a conspicuous ventral groove accompanied by a posterior flagellum with a vane.
Yana Eglit, Shelby K. Williams, Andrew J. Roger, Alastair G. B. Simpson   +3 more
wiley   +1 more source

Archaeal Communities in a Heterogeneous Hypersaline‐Alkaline Soil

Archaea, Volume 2015, Issue 1, 2015., 2015
In this study the archaeal communities in extreme saline‐alkaline soils of the former lake Texcoco, Mexico, with electrolytic conductivities (EC) ranging from 0.7 to 157.2 dS/m and pH from 8.5 to 10.5 were explored. Archaeal communities in the 0.7 dS/m pH 8.5 soil had the lowest alpha diversity values and were dominated by a limited number of ...
Yendi E. Navarro-Noya, César Valenzuela-Encinas, Alonso Sandoval-Yuriar, Norma G. Jiménez-Bueno, Rodolfo Marsch, Luc Dendooven, Antonio Ventosa   +6 more
wiley   +1 more source

Mechanisms of unique chaotropic resistance and biocalcification in a halophilic Virgibacillus isolated from ephemeral microbial mats of the calcium-rich Don Juan pond in Antarctica

Frontiers in Microbiology
IntroductionDon Juan Pond (DJP), located in the McMurdo Dry Valleys of Antarctica, is one of the most extreme cold aquatic environments on our planet and most similar to Mars due to its CaCl₂-rich brines, low water activity, exceptional chaotropicity ...
Laura Marturano, Violetta La Cono, Francesco Smedile, Gina La Spada, Francesca Crisafi, Elena A. Selivanova, Marina E. Ignatenko, Manasi Mudaliyar, Manasi Mudaliyar, Debnath Ghosal, Debnath Ghosal, Enzo Messina, Alfonso Modica, Oleg N. Reva, Sergey N. Gavrilov, Michail M. Yakimov   +15 more
doaj   +1 more source

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

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   +1 more source