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Potential involvement of Aspergillus flavus laccases in peanut invasion at low water potential
submitted by diltovit 35 minutes ago - Topic: Biology
Aspergillus flavus accumulates carcinogenic aflatoxins in peanuts, mainly in immature kernels during drought. Aspergillus flavus invasion induces accumulation of phytoalexins, mostly stilbenoids in peanut, as a plant defence mechanism. Because fungal laccases are often related to pathogenicity an...



A Genetically Encoded Acrylamide Functionality
submitted by kothylc234 38 minutes ago - Topic: Biology
Nε-Acryloyl-l-lysine, a noncanonical amino acid with an electron deficient olefin, is genetically encoded in Escherichia coli using a pyrrolysyl-tRNA synthetase mutant in coordination with tRNACUAPyl. The acrylamide moiety is stable in cells, whereas it is active enough to perform a diverse set ...

Siderocalin Outwits the Coordination Chemistry of Vibriobactin, a Siderophore of Vibrio cholerae
submitted by kothylc234 38 minutes ago - Topic: Biology
The human protein siderocalin (Scn) inhibits bacterial iron acquisition by binding catechol siderophores. Several pathogenic bacteria respond by making stealth siderophores that are not recognized by Scn. Fluvibactin and vibriobactin, respectively of Vibrio fluvialis and Vibrio cholerae, include ...

The Confounding Effect of Nitrite on N2O Production by an Enriched Ammonia-Oxidizing Culture
submitted by tetas2095 38 minutes ago - Topic: Environment
The effect of nitrite (NO2–) on the nitrous oxide (N2O) production rate of an enriched ammonia-oxidizing bacteria (AOB) culture was characterized over a concentration range of 0–1000 mg N/L. The AOB culture was enriched in a nitritation system fed with synthetic anaerobic digester liquor. The...

CO2 Mitigation Potential of Mineral Carbonation with Industrial Alkalinity Sources in the United States
submitted by tetas2095 38 minutes ago - Topic: Environment
The availability of industrial alkalinity sources is investigated to determine their potential for the simultaneous capture and sequestration of CO2 from point-source emissions in the United States. Industrial alkalinity sources investigated include fly ash, cement kiln dust, and iron and steel s...



Bioconcentration of Perfluorinated Alkyl Acids: How Important Is Specific Binding?
submitted by tetas2095 38 minutes ago - Topic: Environment
Perfluorinated alkyl acids (PFAAs) are important global pollutants with unique pharmacokinetics. Evidence is accumulating that their behavior within organisms is affected by interaction with a number of proteins. In mammals, serum albumin, fatty acid binding proteins (FABPs) and organic anion tra...

Prediction of mortality and functional decline by changes in eGFR in the very elderly: the Leiden 85-plus study
submitted by shohed 40 minutes ago - Topic: Health
The prevalence of chronic kidney disease is high in the elderly, but the effects of a decrease in the eGFR on mortality and functioning are still unclear. The aim of this study was to determine whether the combination of the eGFR and the eGFR slope is a predictor of mortality and functional decli...

Tuite, γ-Ca3(PO4)2, formed by chlorapatite decomposition in a shock vein of the Suizhou L6 chondrite
submitted by chotokiloy 42 minutes ago - Topic: Geography
Tuite, γ-Ca3(PO4)2, was first discovered as the high-pressure phase of whitlockite in shock veins of the Suizhou L6 meteorite. This study reports the finding of tuite in a shock vein of the same Suizhou chondrite as a product of decomposition of chlorapatite, where it coexists with coarse-graine...

Petrography and geochemistry of impactites and volcanic bedrock in the ICDP drill core D1c from Lake El'gygytgyn, NE Russia
submitted by chotokiloy 42 minutes ago - Topic: Geography
The 3.6 Ma old and 18 km diameter El'gygytgyn impact structure in NE Siberia was drilled in 2008/09 by ICDP (International Continental Scientific Drilling Program). A 517 m long core hole (D1c) was drilled into the outer flank of the central uplift structure, with an overall core recovery of a...

Magmatic history and parental melt composition of olivine-phyric shergottite LAR 06319: Importance of magmatic degassing and olivine antecrysts in Martian magmatism
submitted by chotokiloy 42 minutes ago - Topic: Geography
Several olivine-phyric shergottites contain enough olivine that they could conceivably represent the products of closed-system crystallization of primary melts derived from partial melting of the Martian mantle. Larkman Nunatak (LAR) 06319 has been suggested to represent a close approach to a Mar...

Lesiones cutáneas agudas tras intervenciones quirúrgicas. Aproximación clínica
submitted by colthrapi 47 minutes ago - Topic: Health
Dentro del ámbito hospitalario no es infrecuente que los dermatólogos debamos valorar lesiones cutáneas inflamatorias que surgen en intervenciones quirúrgicas realizadas por otros servicios. Estas lesiones pueden ser de causa física o química. La povidona yodada es la causa descrita más fr...

Using 222Rn to estimate submarine groundwater discharge (SGD) and the associated nutrient fluxes into Xiangshan Bay, East China Sea
submitted by geriishkoyyar 48 minutes ago - Topic: Geography
Continuous radon (222Rn) monitoring was conducted at two stations (site A and site B) with different perpendicular distance from the shoreline in Xiangshan Bay, East China Sea. Based on a 222Rn balance model (various sources and sinks of 222Rn in coastal water), the average rate of SGD was estima...

Scale-dependent foraging ecology of a marine top predator modelled using passive acoustic data
submitted by mahommod 50 minutes ago - Topic: Biology
Understanding which environmental factors drive foraging preferences is critical for the development of effective management measures, but resource use patterns may emerge from processes that occur at different spatial and temporal scales. Direct observations of foraging are also especially chall...

Heat stress and the fitness consequences of climate change for terrestrial ectotherms
submitted by mahommod 50 minutes ago - Topic: Biology
Climate change will increase both average temperatures and extreme summer temperatures. Analyses of the fitness consequences of climate change have generally omitted negative fitness and population declines associated with heat stress.Here we examine how seasonal and interannual temperature varia...

The Problems of Mexico: An Analysis of a Sociological Discourse
submitted by dlaviliss 51 minutes ago - Topic: Geography
Based on an empirical analysis of articles published between 1987 and 2006 in three major Mexican sociological journals, my research traces the continuities and discontinuities in the study of the alleged malfunctioning of Mexican society. The study of how sociologists represented Mexican society...




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