Results 71 to 80 of about 573 (161)

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

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

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

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   +1 more source

Oases of Microbial Life in the Highest Elevation Fumaroles on Earth [PDF]

, 2016
Investigating Earth for life in extreme environments provides insight into what life might exist elsewhere in the universe. Many celestial bodies have dry and cold landscapes.
Solon, Adam
core   +2 more sources

A New Record for Microbial Perchlorate Tolerance: Fungal Growth in NaClO4 Brines and its Implications for Putative Life on Mars [PDF]

, 2020
The habitability of Mars is strongly dependent on the availability of liquid water, which is essential for life as we know it. One of the few places where liquid water might be found on Mars is in liquid perchlorate brines that could form via ...
Heinz, Jacob, Krahn, Tim, Schulze-Makuch, Dirk   +2 more
core   +1 more source

Characterization of novel mevalonate kinases from the tardigrade Ramazzottius varieornatus and the psychrophilic archaeon Methanococcoides burtonii

Acta Crystallographica Section D, Volume 80, Issue 3, Page 203-215, March 2024.
This work reports the purification, biochemical characterization and high‐resolution structures of two novel mevalonate kinases: one from the extremotolerant tardigrade Ramazzottius varieornatus at 2 Å resolution and one from the psychrophilic archaeon Methanococcoides burtonii at 2.2 Å resolution.Mevalonate kinase is central to the isoprenoid ...
Lygie Esquirol, Janet Newman, Tom Nebl, Colin Scott, Claudia Vickers, Frank Sainsbury, Thomas S. Peat   +6 more
wiley   +1 more source

Draft genome sequence of Dethiobacter alkaliphilus strain AHT1T, a gram-positive sulfidogenic polyextremophile [PDF]

Standards in Genomic Sciences, 2017
AbstractDethiobacter alkaliphilus strain AHT1T is an anaerobic, sulfidogenic, moderately salt-tolerant alkaliphilic chemolithotroph isolated from hypersaline soda lake sediments in northeastern Mongolia. It is a Gram-positive bacterium with low GC content, within the phylum Firmicutes.
Emily Denise Melton, Dimitry Y. Sorokin, Lex Overmars, Alla L. Lapidus, Manoj Pillay, Natalia Ivanova, Tijana Glavina del Rio, Nikos C. Kyrpides, Tanja Woyke, Gerard Muyzer   +9 more
openaire   +7 more sources

Enhanced chaotrope tolerance and (S)‐2‐hydroxypropiophenone production by recombinant Pseudomonas putida engineered with Pprl from Deinococcus radiodurans

Microbial Biotechnology, Volume 17, Issue 3, March 2024.
The gene encoding the global regulator PprI from Deinococcus radiodurans, an inducer of pleiotropic proteins promoting DNA repair, was expressed in Pseudomonas putida. The cells harbouring the global transcriptional regulator exhibited high tolerance toward benzaldehyde, acetaldehyde, ethanol, butanol, NaCl, H2O2 and thermal stress, thereby reflecting ...
Reihaneh Kordesedehi, Azar Shahpiri, Mohammad Ali Asadollahi, Davoud Biria, Pablo Iván Nikel   +4 more
wiley   +1 more source

Genome‐scale metabolic modelling of extremophiles and its applications in astrobiological environments

Environmental Microbiology Reports, Volume 16, Issue 1, February 2024.
Metabolic modelling with GEMs is a valuable tool for studying extremophiles and simulating genetic and environmental changes. Integration with other mathematical approaches aids in predicting life forms in astroenvironments, informing the origins of life and space adaptation.
Nuttapol Noirungsee, Sakunthip Changkhong, Kittiya Phinyo, Chutipong Suwannajak, Nahathai Tanakul, Sahutchai Inwongwan   +5 more
wiley   +1 more source