Results 101 to 110 of about 13,140,877 (372)
Life-Detection Technologies for the Next Two Decades
, 2018 Since its inception six decades ago, astrobiology has diversified immensely to encompass several scientific questions including the origin and evolution of Terran life, the organic chemical composition of extraterrestrial objects, and the concept of ...
Bodas, Dhananjay +22 more
core
Groundwork for Life Detection [PDF]
Bulletin of the AAS, 2021 Tori Hoehler +19 more
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An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots
FEBS Letters, EarlyView.This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino +7 more
wiley +1 more source
An exploration of origin of life for exoplanetary science
Frontiers in Astronomy and Space SciencesThe factors that enable life to begin define the difference between an inhabited planet and one that is simply habitable. While used extensively in Origins, Worlds, and Life: A Decadal Strategy for Planetary Science and Astrobiology 2023–2032 ...
Finnegan Keller +5 more
doaj +1 more source
PROSPECTS FOR LIFE IN THE SUBGLACIAL LAKE VOSTOK, EAST ANTARCTICA
Лëд и снег, 2015 The objective was to estimate the genuine microbial content of ice samples from refrozen water (accretion ice) from the subglacialLakeVostok(Antarctica) buried beneath the 4-km thick East Antarctic ice sheet as well as surface snow nearby Vostok station.
S. A. Bulat, D. Marie, J.-R. Petit
doaj +1 more source
UV Irradiation and Near Infrared Characterization of Laboratory Mars Soil Analog Samples
Frontiers in Astronomy and Space Sciences, 2020 The search for molecular biosignatures at the surface of Mars is complicated by an intense irradiation in the mid- and near-ultraviolet (UV) spectral range for several reasons: (i) many astrobiologically relevant molecules are electronically excited by ...
Teresa Fornaro +11 more
doaj +1 more source
Lipopolysaccharide Detection across the Kingdoms of Life [PDF]
Trends in Immunology, 2017 Studies in recent years have uncovered a diverse set of eukaryotic receptors that recognize lipopolysaccharide (LPS), the major outer-membrane component of Gram-negative bacteria. Indeed, Toll-like receptors, G-protein-coupled receptors, integrins, receptor-like kinases, and caspases have emerged as important LPS-interacting proteins.
openaire +2 more sources
A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins
FEBS Letters, EarlyView.We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue +6 more
wiley +1 more source
The HOMO-LUMO Gap as Discriminator of Biotic from Abiotic Chemistries
LifeLow-molecular-mass organic chemicals are widely discussed as potential indicators of life in extraterrestrial habitats. However, demarcation lines between biotic chemicals and abiotic chemicals have been difficult to define.
Roman Abrosimov, Bernd Moosmann
doaj +1 more source