Results 51 to 60 of about 4,037 (202)
The Resilience of Life to Astrophysical Events [PDF]
Scientific Reports 7 (2017) 5419, 2017 Much attention has been given in the literature to the effects of astrophysical events on human and land-based life. However, little has been discussed on the resilience of life itself. Here we instead explore the statistics of events that completely sterilise an Earth-like planet with planet radii in the range $0.5-1.5 R_{Earth}$ and temperatures of $\
arxiv +1 more source
ChemBioChem, EarlyView.This analysis reveals structural heterogeneity in the lipopolysaccharide lipid A from the cold‐adapted Gram‐negative bacterium Polaribacter sp. SM1127, with variations in fatty acid chain number, length, branching, saturation, and hydroxylation degree, likely aiding bacterial adaptation to cold environmental stressors. Lipopolysaccharide is shown to be
Roberta Cirella +9 more
wiley +1 more source
Bacterial sigma factors as targets for engineered or synthetic transcriptional control
Frontiers in Bioengineering and Biotechnology, 2014 Sigma (σ) factors are the predominant constituents of transcription regulation in bacteria. σ factors recruit the core RNA polymerase (RNAP) to recognize promoters with specific DNA sequences. Recently engineering of transcriptional regulators has become
Lakshmi eTripathi +2 more
doaj +1 more source
Synthetic biology for medical biomaterials
Interdisciplinary Medicine, EarlyView.Synthetic biology platform has been utilized to produce a variety of medical biomaterials (MBMs), such as polylactic acid (PLA), polyhydroxyalkanoates (PHAs), hyaluronic acid (HA), collagen (COL), poly(β‐malic acid) (PMLA), poly‐γ‐glutamic acid (γ‐PGA), alginate (ALG), chitosan (CS), bacterial cellulose (BC), and antimicrobial peptides (AMPs).
Tao Xu +4 more
wiley +1 more source
Frontiers in Microbiology, 2021 Microorganisms are capable of colonizing extreme environments like deep biosphere and oil reservoirs. The prokaryotes diversity in exploited oil reservoirs is composed of indigenous microbial communities and artificially introduced microbes.
Katherine Bedoya +6 more
doaj +1 more source
Interactions of rare earth elements with living organisms and emerging biotechnical applications
PLANTS, PEOPLE, PLANET, EarlyView.Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey +6 more
wiley +1 more source
Notulae Botanicae Horti Agrobotanici Cluj-NapocaSeed germination is a vital process, yet extremely sensitive to salinity. This is particularly true for coastal halophytes like the annual oilseed species Cakile maritima, which faces the simultaneous impact of wind, salt-spray and seawater inundations ...
Dorsaf MESSEDI +6 more
doaj +1 more source
Viruses Of Extreme Environments
Postępy Mikrobiologii, 2019 Extremophilic viruses inhabit even the most extreme environments, such as underwater and terrestrial hydrothermal vents, deserts, subpolar areas, deep subsurface sediments, hypersaline environments, and alkaline lakes.
Wołącewicz Mikołaj +3 more
doaj +1 more source
Frontiers in Microbiology, 2022 The genome streamlining theory suggests that reduction of microbial genome size optimizes energy utilization in stressful environments. Although this hypothesis has been explored in several cases of low-nutrient (oligotrophic) and high-temperature ...
Diego Cortez +5 more
doaj +1 more source
A Possible Biogenic Origin for Hydrogen Peroxide on Mars: The Viking Results Reinterpreted [PDF]
, 2006 The adaptability of extremophiles on Earth raises the question of what strategies putative life might have used to adapt to the present conditions on Mars. Here, we hypothesize that organisms might utilize a water-hydrogen peroxide (H2O-H2O2) mixture rather than water as an intracellular liquid.
arxiv +1 more source