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47 results for “Temperature resistance”
Data from: Decoupled evolution of foliar freezing resistance, temperature-niche and morphological leaf traits in Chilean Myrceugenia
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Data from: Association mapping reveals candidate loci for resistance and anemic response to an emerging temperature-driven parasitic disease in a wild salmonid fish
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Fitness effects for Ace insecticide resistance mutations are determined by ambient temperature
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Data from: Predictability rather than amplitude of temperature fluctuations determines stress resistance in a natural population of Drosophila simulans
The adaptability of organisms to novel environmental conditions depends on the amount of genetic variance present in the population as well as on the ability of individuals to adjust their phenotype through phenotypic plasticity. Here, we investigated the phenotypic plasticity induced by a single generation's exposure to three different temperature regimes with respect to several life-history and stress-resistance traits in a natural population of Drosophila simulans. We studied a constant as well as a predictably and an unpredictably fluctuating temperature regime. We found high levels of phenotypic plasticity among all temperature regimes, suggesting a strong influence of both temperature fluctuations and their predictability. Increased heat tolerance was observed for flies developed in both types of fluctuating thermal environments compared with flies developed in a constant environment. We suggest that this was due to beneficial hardening when developing in either fluctuating temperature environment. To our surprise, flies that developed in constant and predictably changing environments were similar to each other in most traits when compared to flies from the unpredictably fluctuating environment. The unpredictably changing thermal environment imposed the most stressful condition, resulting in the lowest performance for stress-related traits, even though the absolute temperature changes never exceeded that of the predictably fluctuating environment. The overall decreased stress resistance of flies in the unpredictably fluctuating environment may be the consequence of maladaptive phenotypic plasticity in this setting, indicating that the adaptive value of plasticity depends on the predictability of the environment.
Data from: Temperature-sensitive fitness cost of insecticide resistance in Chinese populations of the diamondback moth Plutella xylostella
Alleles conferring a higher adaptive value in one environment may have a detrimental impact on fitness in another environment. Alleles conferring resistance to pesticides and drugs provide textbook examples of this trade-off as, in addition to conferring resistance to these molecules, they frequently decrease fitness in pesticide/drug-free environments. We show here that resistance to chlorpyrifos, an organophosphate (OP), in Chinese populations of the diamondback moth, Plutella xylostella, is conferred by two mutations of ace1 – the gene encoding the acetylcholinesterase enzyme targeted by OPs – affecting the amino acid sequence of the corresponding protein. These mutations were always linked, consistent with the segregation of a single resistance allele, ace1R, carrying both mutations, in the populations studied. We monitored the frequency of ace1R (by genotyping more than 20 000 adults) and the level of resistance (through bioassays on more than 50 000 individuals) over several generations. We found that the ace1R resistance allele was costly in the absence of insecticide and that this cost was likely recessive. This fitness costs involved a decrease in fecundity: females from resistant strains laid 20% fewer eggs, on average, than females from susceptible strains. Finally, we found that the fitness costs associated with the ace1R allele were greater at high temperatures. At least two life history traits were involved: longevity and fecundity. The relative longevity of resistant individuals was affected only at high temperatures and the relative fecundity of resistant females – which was already affected at temperatures optimal for development – decreased further at high temperatures. The implications of these findings for resistance management are discussed.
Data from: Sulfur resistance of Ce-Mn/TiO2 catalysts for low-temperature NH3–SCR
Ce-Mn/TiO2 catalyst prepared using a simple impregnation method demonstrated a better low-temperature selective catalytic reduction of NO with NH3 (NH3-SCR) activity in comparison with the sol-gel method. The Ce-Mn/TiO2 catalyst loading with 20% Ce had the best low-temperature activity and achieved a NO conversion rate higher than 90% at 140-260°C with a 99.7% NO conversion rate at 180 °C. The Ce-Mn/TiO2 catalyst only had a 6% NO conversion rate decrease after 100 ppm of SO2 was added to the stream. When the SO2 was removed from the stream, the catalyst was able to recover completely. The crystal structure, morphology, textural properties, and valence state of the metals involving the novel catalysts were investigated using X-ray diffraction (XRD), N2 adsorption and desorption analysis, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS), respectively. The decrease of NH3-SCR performance in the presence of 100 ppm SO2 was due to the decrease of the surface area, change of the pore structure, the decrease of Ce4+ and Mn4+ concentration, and the formation of the sulfur phase chemicals which blocked the active sites and changed the valence status of the elements.
Impact of Muscle Temperature on Muscle Growth and Breakdown: Cooling During Resistance Training
ClinicalTrials.gov study NCT05302791. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Temperature-sensitive fitness cost of insecticide resistance in Chinese populations of the diamondback moth Plutella xylostella
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Data from: Corrosion resistant systems of formate packer fluid for G3/N80/TP110SS pipes at high temperature, high pressure and high H2S/CO2 ratios
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Data from: Sulfur resistance of Ce-Mn/TiO2 catalysts for low-temperature NH3–SCR
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Data from: Predictability rather than amplitude of temperature fluctuations determines stress resistance in a natural population of Drosophila simulans
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Study of expression changes during RPS4-mediated resistance in Arabidopsis using a temperature-inducible system which mirrors NLR activation
GEO Series GSE80424. Arabidopsis thaliana. 6 samples. Type: Expression profiling by high throughput sequencing.
Rice plants exhibiting bacterial blight resistance at high temperature suppress abiotic response
GEO Series GSE95668. Oryza sativa Indica Group. 28 samples. Type: Expression profiling by high throughput sequencing.
Co-overexpression of the constitutively active form of OsbZIP46 and ABA-activated protein kinase SAPK6 improves drought and temperature stress resistance in rice
GEO Series GSE98775. Oryza sativa Japonica Group. 12 samples. Type: Expression profiling by high throughput sequencing.
Dynamics and Characterization of Small RNAs of Virus and Host Origin from Wheat Streak Mosaic Virus- and/or Triticum Mosaic Virus-infected Susceptible and Temperature-Sensitive Resistant Wheat Cultiva
GEO Series GSE54026. Triticum aestivum. 16 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Transcriptome analysis of a heat-resistant jujube cultivar response to high temperature stress
GEO Series GSE136047. Ziziphus jujuba. 15 samples. Type: Expression profiling by high throughput sequencing.
Study of expression changes during RPS4-mediated resistance in Arabidopsis using a temperature-inducible system which mirrors NLR activation II
GEO Series GSE80448. Arabidopsis thaliana. 18 samples. Type: Expression profiling by high throughput sequencing.
Overexpression of NB-LRR Gene AtRPM1(D505V) Improved Drought and Salt Resistance, and Low-temperature Sensitivity in Transgenic Rice
<p><strong><span>FIGURE S1 </span></strong><span>Relative expression of <em>AtRPM1</em>(<em>D505V</em>)<em> </em>in transgenic plants.</span><span> The expression of </span><em><span>AtRPM1</span></em><span>(<em>D505V</em>) in seven independent homozygous rice lines </span><span>was detected </span><span>by qRT-PCR assay. </span><span>The <em>OsActin </em>gene was used as an internal control. Data are shown as means ± SD (n = 3).</span></p> <p><strong><span>FIGURE S2 </span></strong><em><span>Cis</span></em><span>-element analysis in the <em>AtRPM1</em> promoter.</span></p> <p><strong><span>Table S1 </span></strong><span>qRT-PCR</span><span> primers used in this study.</span></p>
Study of expression changes during RPS4-mediated resistance in Arabidopsis using a temperature-inducible system
GEO Series GSE50019. Arabidopsis thaliana. 36 samples. Type: Expression profiling by array.
Comparative transcriptome analysis unveiling molecular mechanisms underlying low temperature resistance in the white mangrove Laguncularia racemosa
GEO Series GSE208631. Laguncularia racemosa. 22 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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