Shielding of bacterial spores against galactic cosmic radiation by meteorite material. Shielding of bacterial spores against galactic cosmic radiation.

Slides:

Advertisements

Similar presentations

Electron microscopy of C. albicans cell wall.

Advertisements

Inferring chromatin organization.

Increase in biologically effective UV irradiance (biologically effective dose) with decreasing simulated ozone column thickness as measured by the spore.

Screenshot of JCVI's Advanced Reference Viewer ( jcvi

Frequency of inactivated spores of B

Allosteric site of B. subtilis PRPP synthase.

Cross-section of a spore of B. subtilis.

The microsporidian sex-related locus.

Biochemical function of PRPP

Solar spectrum in space (thin line) and on Earth's surface (thick line). Solar spectrum in space (thin line) and on Earth's surface (thick line). Below.

Comparison of amino acid regions forming [4Fe-4S] clusters in the SplB amino acid sequences from Bacillus anthracis (B.an), B. amyloliquefaciens (B.am),

Human ARDS. Photomicrographs from the lungs of 2 different patients with ARDS, stained with hematoxylin and eosin (H&E) are shown. Human ARDS. Photomicrographs.

Phylogenetic analysis of PurR from low-GC Gram-positive bacteria.

N-Glycosidic bond formation with PRPP

Phrap assemblies visualized with the Consed (53) program.

Possible secondary structure of the S. enterica prs leader.

Biostack experiment, a method to study the biological effects of single heavy ions of cosmic radiation. Biostack experiment, a method to study the biological.

Alignments of the complete genome sequences of the B

CTL killing and hepatocyte replacement.

Current model for Fe-S cluster assembly by the Suf system.

Structures of hydrophobic signaling molecules produced by diatoms and bacteria. Structures of hydrophobic signaling molecules produced by diatoms and bacteria.

Population dynamics of P. syringae pv

Summary of major events in Earth history relating to the appearance of eukaryotic groups and the appearance of O2 in the atmosphere and in marine environments.

Structures of P. aeruginosa ExoU and its chaperone, SpcU (PDB ID 3TU3), shown as a cartoon. Structures of P. aeruginosa ExoU and its chaperone, SpcU (PDB.

Role of lipopolysaccharide in K. pneumoniae virulence.

Role of capsule in K. pneumoniae virulence.

Electron micrograph of negatively stained protofilaments assembled in vitro from E. coli FtsZ (1 μM FtsZ, 50 mM MES [morpholineethanesulfonic acid] [pH.

Schematic representation of the hydrolysis of amorphous and microcrystalline cellulose by noncomplexed (A) and complexed (B) cellulase systems. Schematic.

Antibiofilm strategies arising from fundamental research.

Hector H. García et al. Clin. Microbiol. Rev. 2002; doi: /CMR

UV resistance of spores and vegetative cells of B

Scheme for recovery of viral nucleic acid from microarray spots.

T4P gene clusters in C. perfringens and C. difficile.

Protein structures of various PFT classes.

Extreme resistance of D

SMase cleavage sites in sphingomyelin and cellular activities of the reaction products. SMase cleavage sites in sphingomyelin and cellular activities of.

Physiological effects of heat shock.

Diagram of the relationship between the T4 transcriptional pattern and the different mechanisms of DNA replication and recombination. Diagram of the relationship.

Prophage genome map of the C. diphtheriae prophage encoding DT

Schematics depicting a stylized cross section of dark ocean habitats (top; adapted from reference 259 by permission of Macmillan Publishers Ltd., copyright.

Roberta B. Carey et al. Clin. Microbiol. Rev. 2018; doi: /CMR

Molecular models for module exchange between phages.

MEED exposure facility mounted on the camera beam of the lunar orbiter of the Apollo 16 mission (A) and sample cuvette for exposing dry layers of microorganisms.

Structure of an exporter.

Binding of mRNA to the 30S ribosomal subunit.

Electron micrographs of bacteriophage T4.

Mechanisms of XRV and ERV transmission.

General scheme of the events triggered by C

Linear relationship between the dose of ionizing radiation and, from top to bottom, the extent of DNA degradation and the delay in DNA synthesis. Linear.

Conserved motifs in the ABC

Fluconazole zone diameter distributions for all Candida spp

Absorption spectra of PRs in relation to light attenuation patterns in different marine environments. Absorption spectra of PRs in relation to light attenuation.

The selective advantage (relative fitness) of a mutant genome (with its associated cloud) alters the rate of dominance in a population. The selective advantage.

Thermodynamic cycle for ligand binding to a periplasmic-BP.

Integron structure and gene capture mechanism.

Model of transition to extant bipolar systems from an ancestral tetrapolar system in basidiomycete MAT loci. Model of transition to extant bipolar systems.

Intrastrand biases (nucleotide skew) in the T4 genome.

General overview of the bioinformatic pipelines for the 16S rRNA gene microbial profiling and shotgun metagenomics. General overview of the bioinformatic.

Mono-ADP-ribosylation cycle and the corresponding products of protein mono-ADP-ribosylation. Mono-ADP-ribosylation cycle and the corresponding products.

Increasing research interest in marine sponge-microorganism associations. Increasing research interest in marine sponge-microorganism associations. (A)

Alignment of PilT retraction ATPases.

Contributions of shape to nutrient acquisition.

Repair kinetics of radiation-induced DNA damage under microgravity conditions. Repair kinetics of radiation-induced DNA damage under microgravity conditions.

IF2 and structural homologues.

Diagrammatic representation of individual cnidarian host gastrodermal cells with resident symbionts. Diagrammatic representation of individual cnidarian.

Sequence alignment of colicin lysis proteins.

(A) Crystal structure of the monomer of PGI/PMI from Pyb

Acquisition of global regulators during the evolution of streptomycetes. Acquisition of global regulators during the evolution of streptomycetes. The multilocus.

16S rRNA-based phylogeny of sponge-associated cyanobacteria and chloroplasts. 16S rRNA-based phylogeny of sponge-associated cyanobacteria and chloroplasts.

Structure of an ATP-bound ABC dimer.

Presentation transcript:

Shielding of bacterial spores against galactic cosmic radiation by meteorite material. Shielding of bacterial spores against galactic cosmic radiation by meteorite material. The dashed line gives the annual dose profile (in Grays per year), which increases for the outer 10 cm due to secondary radiation and then decreases. The solid line gives the exposure time for a survival rate of 10−6 (survival of 100 spores from an initial population of 108 spores). (Data from reference 109.)‏ Wayne L. Nicholson et al. Microbiol. Mol. Biol. Rev. 2000; doi:10.1128/MMBR.64.3.548-572.2000