Results 61 to 70 of about 1,201 (159)

Lrp as a potential transcriptional regulator involved in stress response in Haloferax mediterranei

Biochimie, 2023
The Archaea domain consists of a heterogeneous group of microorganisms with unique physiological properties that occupy a wide variety of niches in nature. Haloferax mediterranei is an extremely halophilic archaeon classified in the Phylum Euryarchaeota, which requires a high concentration of inorganic salts for optimal growth.
Laura Matarredona, Mónica Camacho, Vanesa Bautista, María-José Bonete, Julia Esclapez   +4 more
openaire   +3 more sources

A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin

Biotechnology and Applied Biochemistry, Volume 73, Issue 2, Page 913-926, April 2026.
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani, Elena Valdés, José María Miralles‐Robledillo, Guillermo Martínez, Carmen Pire, Rosa María Martínez‐Espinosa   +5 more
wiley   +1 more source

Characterization and Functional Evaluation of Carotenoids From Haloarcula rubripromontorii BS2

MicrobiologyOpen, Volume 15, Issue 1, February 2026.
Fractionation and comprehensive characterization of C50 carotenoids from Haloarcula rubripromontorii BS2, identified all‐trans bacterioruberin as the predominant isomer. The haloarchaeal carotenoid exhibited strong antioxidant activity, photostability in oil and was biocompatible with human keratinocytes, highlighting their potential as sustainable ...
Devika N. Nagar, Deepthi Das, Raviprasad Aduri, Judith Maria Braganca   +3 more
wiley   +1 more source

In Silico Analysis of the Enzymes Involved in Haloarchaeal Denitrification

Biomolecules, 2021
During the last century, anthropogenic activities such as fertilization have led to an increase in pollution in many ecosystems by nitrogen compounds. Consequently, researchers aim to reduce nitrogen pollutants following different strategies.
Eric Bernabeu, Jose María Miralles-Robledillo, Micaela Giani, Elena Valdés, Rosa María Martínez-Espinosa, Carmen Pire   +5 more
doaj   +1 more source

Investigations into the characterization, degradation, and applications of biodegradable polymers by mass spectrometry

Mass Spectrometry Reviews, Volume 44, Issue 6, Page 947-988, November/December 2025.
Abstract Biodegradable polymers have been getting more and more attention because of their contribution to the plastic pollution environmental issues and to move towards a circular economy. Nevertheless, biodegradable materials still exhibit various disadvantages restraining a widespread use in the market.
Paola Rizzarelli, Melania Leanza, Marco Rapisarda   +2 more
wiley   +1 more source

Haloferax mediterranei GlnK proteins are post-translationally modified by uridylylation

, 2013
In this work we report for the first time a post-translational modification of PII homologues from the Archaea Domain. Haloferax mediterranei is the first haloarchaea whose PII proteins have been studied, it possesses two of them (GlnK1 and GlnK2), both ...
Pedro Roig, Laia, Bonete, María-José, Camacho, Mónica   +2 more
core   +1 more source

Properties Of The Plasma Membrane Atpases Of The Halophilic Archaebacteria Haloferax Mediterranei And Haloferax Volcanii

Zeitschrift für Naturforschung C, 1992
Both, Haloferax mediterranei and Haloferax volcanii membranes contain ATPases which are capable of hydrolyzing ATP in presence of Mg2+ or Mn2+. The ATPases require high concentrations of NaCl, a pH value of 9, and high temperatures up to 60 °C. Free manganese ions inhibited the enzyme activity of either ATPase. The ATPases of Hf.
Michaela Dane, Kerstin Steinert, Kordula Esser, Susanne Bickel-Sandkötter, Francisco Rodriguez-Valera   +4 more
openaire   +1 more source

Assimilatory nitrate reductase from the haloarchaeon Haloferax mediterranei: purification and characterisation [PDF]

FEMS Microbiology Letters, 2001
Haloferax mediterranei can use nitrate as sole nitrogen source during aerobic growth. We report here the purification and biochemical characterisation of the assimilatory nitrate reductase (EC 1.6.6.2) from H. mediterranei. The enzyme, as isolated, was composed of two subunits (105+/-1.3 kDa and 50+/-1.3 kDa) and behaved as a dimer during gel ...
R M, Martínez-Espinosa, F C, Marhuenda-Egea, M J, Bonete   +2 more
openaire   +2 more sources

The Function of Gas Vesicles in Halophilic Archaea and Bacteria: Theories and Experimental Evidence

Life, 2012
A few extremely halophilic Archaea (Halobacterium salinarum, Haloquadratum walsbyi, Haloferax mediterranei, Halorubrum vacuolatum, Halogeometricum borinquense, Haloplanus spp.) possess gas vesicles that bestow buoyancy on the cells. Gas vesicles are also
Aharon Oren
doaj   +1 more source

Salinity effect on production of PHA and EPS byHaloferax mediterranei

RSC Advances, 2017
Salinity effect on production of PHA and EPS byHaloferax mediterranei.
You-Wei Cui, Xiao-Yu Gong, Yun-Peng Shi, Zhiwu (Drew) Wang   +3 more
openaire   +3 more sources