Results 41 to 50 of about 80,337 (315)
Nature Communications, 2019 The S-layer is a proteinaceous envelope often found in bacterial and archaeal cells. Here, the authors use CRISPR-based technology to silence slaB, encoding the S-layer membrane anchor, to show that an intact S-layer is important for cell division and ...
Isabelle Anna Zink +5 more
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Biomolecules, 2020 Prokaryotes are constantly coping with attacks by viruses in their natural environments and therefore have evolved an impressive array of defense systems.
Isabelle Anna Zink +2 more
doaj +1 more source
Frontiers in Microbiology, 2021 Halophilic archaea have been proposed to exchange DNA and proteins using a fusion-based mating mechanism. Scanning electron microscopy previously suggested that mating involves an intermediate state, where cells are connected by an intercellular bridge ...
Shamphavi Sivabalasarma +7 more
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FEBS Letters, EarlyView.The Arabidopsis mutants hls1 hlh1 and amp1 lamp1 exhibit pleiotropic developmental phenotypes. Although the functions of the causative genes remain unclear, they act in the same genetic pathway and are thought to generate non‐cell‐autonomous signals.
Takashi Nobusawa, Makoto Kusaba
wiley +1 more source
Angewandte Chemie, EarlyView.This article describes a modular strategy to construct artificial cells able to regulate mammalian cell protein expression via vesicle‐based RNA communication. Considering the important role of extracellular vesicles in genetic information transfer, this artificial exosome design is a significant advance toward mimicking nucleic acid communication ...
Alexander B. Cook +4 more
wiley +2 more sources
Lipidomic chemotaxonomy aligned with phylogeny of Halobacteria
Frontiers in Microbiology, 2023 Archaea play an important role in global biogeochemical cycles and are considered ancestral to eukaryotes. The unique lipid composition of archaea, characterized by isoprenoid alkyl chains and ether linkage to glycerol-1-phosphate, offers valuable ...
Wenyong Yao +11 more
doaj +1 more source
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
Discovery of fructans in Archaea [PDF]
Carbohydrate Polymers, 2019 Fructans are fructose-based oligo- and polysaccharides derived from sucrose that occur in a plethora of Eubacteria and plants. While fructan-producing (fructanogenic) Eubacteria are abundant in hypersaline environments, fructan production by Archaea has never been reported before.
Kirtel, Onur +3 more
openaire +5 more sources
FEBS Letters, EarlyView.Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley +1 more source
Structure and in situ organisation of the Pyrococcus furiosus archaellum machinery
eLife, 2017 The archaellum is the macromolecular machinery that Archaea use for propulsion or surface adhesion, enabling them to proliferate and invade new territories.
Bertram Daum +7 more
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