A5037442331- Polar Research and Ecology
- Microbial Community Ecology and Physiology
- Biocrusts and Microbial Ecology
- Paleontology and Stratigraphy of Fossils
- Peripheral Nerve Disorders
- Orthopedic Surgery and Rehabilitation
- Genomics and Phylogenetic Studies
- Planetary Science and Exploration
- Building materials and conservation
- Methane Hydrates and Related Phenomena
- Shoulder Injury and Treatment
- Lichen and fungal ecology
- Nerve Injury and Rehabilitation
- Calcium Carbonate Crystallization and Inhibition
- Geology and Paleoclimatology Research
Johns Hopkins University
2017-2022
Summary In hyperarid deserts, endolithic microbial communities colonize the rocks’ interior as a survival strategy. Yet, composition of these and drivers promoting their assembly are still poorly understood. We analysed diversity community endoliths from four different lithic substrates – calcite, gypsum, ignimbrite granite collected in zone Atacama Desert, Chile. By combining microscopy, mineralogy, spectroscopy high throughput sequencing, we found to be highly specific substrate, although...
Microorganisms, in the most hyperarid deserts around world, inhabit inside of rocks as a survival strategy. Water is essential for life, and ability rock substrate to retain water its habitability. Here we report mechanism by which gypsum from Atacama Desert, Chile, provide colonizing microorganisms. We show that microorganisms can extract crystallization (i.e., structurally ordered) rock, inducing phase transformation (CaSO
In hyper-arid deserts, endolithic microbial communities survive in the pore spaces and cracks of rocks, an environment that enhances water retention filters UV radiation. The rock colonization zone is enriched far-red light (FRL) depleted visible light. This poses a challenge to cyanobacteria, which are primary producers communities. Many species cyanobacteria capable Far-Red-Light Photoacclimation (FaRLiP), process FRL induces synthesis specialized chlorophylls remodeling photosynthetic...
Spatial heterogeneity in microbial communities is observed all natural ecosystems and can stem from both adaptations to local environmental conditions as well stochastic processes. Extremophile inhabiting evaporitic halite nodules (salt rocks) the Atacama Desert, Chile, are a good model ecosystem for investigating factors leading microbiome heterogeneity, due their diverse taxonomic composition spatial segregation of individual nodules. We investigated abiotic governing across different...
Cyanobacteria are essential to microbial communities inhabiting translucent rocks in hyper-arid deserts. Metagenomic studies revealed unique adaptations of these cyanobacteria, but validation the corresponding metabolic pathways remained challenging without access isolates. Here, we present high-quality metagenome-assembled genomes for and their heterotrophic companions, isolated from endolithic substrates.
The purpose of the study was to develop a method for locating surface projections structures related radial tunnel using thumb interphalangeal joint (IPJ) coefficients. Distances from vertical and transverse planes through lateral epicondyle humerus entry (arcade Frohse – AF) exit points deep branch nerve (DBRN) supinator muscle were measured on nine cadavers. Average distances used find coefficients in terms IPJ widths. accuracy these AF tested by ink injection five other average width...
Abstract In hyper-arid deserts, endolithic microbial communities survive in the pore spaces and cracks of rocks, an environment that enhances water retention filters UV radiation. The rock colonization zone is enriched far-red light (FRL) depleted visible light. This poses a challenge to cyanobacteria, which are primary producers communities. Many species cyanobacteria capable Far-Red Light Photoacclimation (FaRLiP), process FRL induces synthesis specialized chlorophylls remodeling...
ABSTRACT The expansion of desertification across our planet is accelerating as the result human activity and global climate change. In hyper-arid deserts, endolithic microbial communities colonize rocks’ interior a survival strategy. Yet, composition these drivers promoting their assembly are still poorly understood. Using sampling strategy that minimized regime biogeography effects, we analyzed diversity community endoliths from four different lithic substrates – calcite, gypsum, ignimbrite...
Abstract Cyanobacteria are essential to microbial communities inhabiting translucent rocks in hyper-arid deserts. Metagenomic studies revealed unique adaptations of these cyanobacteria but validation the corresponding metabolic pathways remained challenging without access isolates. Here we present high-quality metagenome assembled genomes for cyanobacteria, and their heterotrophic companions, isolated from endolithic substrates.