Results 71 to 80 of about 8,069 (190)

Extracts from Microalgae and Archaea from the Andalusian Coast: A Potential Source of Antiproliferative, Antioxidant, and Preventive Compounds

open access: yesJournal of Marine Science and Engineering
Marine and extreme environments harbor a huge diversity of microorganisms able to produce new bioactive metabolites with beneficial health effects. In this study, ethanol, aqueous, methanol, and acetone extracts and protein hydrolysates were obtained ...
Cristina Luque   +9 more
doaj   +1 more source

Structure determination of the phosphatidylglycerosulfate (diether analog) from Halobacterium cutirubrum

open access: yesJournal of Lipid Research, 1973
A novel phosphosulfolipid has been isolated as the potassium salt from the extremely halophilic bacterium Halobacterium cutirubrum; its molecular formula was established as C46H93PSK2.
A.J. Hancock, M. Kates
doaj   +1 more source

An identity card for sabkha dolomite

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
An ‘identity card’ for modern sabkha dolomite from Qatar reveals its mineralogical, geochemical and microbial characteristics. This integrated dataset provides a benchmark for recognising similar dolomites in the rock record and for calibrating paleoenvironmental proxies used in climate and biosignature studies.
Tomaso R. R. Bontognali   +6 more
wiley   +1 more source

Characterization and synthesis of mono- and diphytanyl ethers of glycerol

open access: yesJournal of Lipid Research, 1968
The methanolyzed lipids of the extreme halophile, Halobacterium cutirubrum, were separated into glycerol diether and glycerol monoether fractions. The diether was shown by synthesis to be 2,3-di-O-(3′R,7′R,ll′R,15′-tetramethylhexadecyl)-sn-glycerol.
C.N. Joo, T. Shier, M. Kates
doaj   +1 more source

Characterization and Functional Evaluation of Carotenoids From Haloarcula rubripromontorii BS2

open access: yesMicrobiologyOpen, 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   +3 more
wiley   +1 more source

Diversity of FAAL enzymes and prediction of their substrate specificity using FAALPred

open access: yesProtein Science, Volume 35, Issue 2, February 2026.
Abstract FAALs (fatty acyl‐AMP ligases) recruit and incorporate fatty acids during the biosynthesis of secondary metabolites. Their diversity, distribution, and substrate specificity remain poorly understood, which limits functional predictions from sequence data.
Anne Liong   +2 more
wiley   +1 more source

Synthesis retinal analogues of spiropyran derivaties, investigation they interactions with bacteriorhodopsin from H. salinarum

open access: yesТонкие химические технологии, 2006
The opportunity of design of analogue retinal with replacement of trimethylhexenic ring of a molecule on spiropyran moiety is shown. Process of interaction of the synthesized retinal analogues with bacterioopsin from apomembrane Halobacterium salinarum ...
A. V. Laptev   +2 more
doaj  

Integrated biclustering of heterogeneous genome-wide datasets for the inference of global regulatory networks

open access: yesBMC Bioinformatics, 2006
Background The learning of global genetic regulatory networks from expression data is a severely under-constrained problem that is aided by reducing the dimensionality of the search space by means of clustering genes into putatively co-regulated groups ...
Baliga Nitin S   +2 more
doaj   +1 more source

Seasonal Fluctuations of the Seagrass Holobiont under Contrasting Environmental Conditions

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
(A) The inharmonious state of the Coorong and the different sample types collect with throughout this study. (B, C) Biofilm, including the presence of diatoms and bacteria, attached on the leaves of Ruppia. ABSTRACT Microbial communities are widely recognised as indicative of ecosystem health.
Tamar Jamieson   +4 more
wiley   +1 more source

Occurrence of squalene, di- and tetrahydrosqualenes, and vitamin MK8 in an extremely halophilic bacterium, Halobacterium cutirubrum

open access: yesJournal of Lipid Research, 1969
The nonpolar (acetone-soluble) lipids of the extremely halophilic bacterium, Halobacterium cutirubrum, were found to consist of red carotenoid pigments (43%) and squalenes (48%) with a small amount of a vitamin K-type quinone. The squalenes were shown by
T.G. Tornabene   +3 more
doaj   +1 more source

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