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492 results for “Starvation”
673_2023_02_13_proteinAggregates_starvation_2_0_twice_ura7ha_ura7hr_ura8_ura8ha_ura8hr_00 (part 5)
High throughput time lapse experiment. Details can be found on the 'txt' files inside.
Intergenerations effects of starvation on Athalia
<p>Intergenerational effects, also known as parental effects in which the offspring phenotype is influenced by the parental phenotype, can occur in response to factors that occur not only in early but also in late parental life. However, little is known about how these parental life stage-specific environments interact with each other and with the offspring environment to influence offspring phenotypes, particularly in organisms that realize distinct niches across ontogeny. We examined the effects of parental larval starvation and adult reproductive environment on offspring traits under matching or mismatching offspring larval starvation conditions using the holometabolous, haplodiploid insect <i>Athalia rosae</i> (turnip sawfly). We show that parental larval starvation had trait-dependent intergenerational effects on both life-history and consumption traits of offspring larvae, partly in interaction with offspring conditions, while there was no significant effect of parental adult reproductive environment. In addition, while offspring larval starvation led to numerous gene- and pathway-level expression differences, parental larval starvation impacted far fewer genes and only the ribosomal pathway. Our findings reveal that parental starvation evokes complex intergenerational effects on offspring life-history traits, consumption patterns as well as gene expression, although the effects are less pronounced than those of offspring starvation.</p>
Fig. 1 in Starvation time and predatory efficiency of spider species on Bemisia tabaci (Homoptera: Aleyrodidae)
Fig. 1. Feeding efficiency of different spider species in the laboratory experiment.
Climate warming causes photobiont degradation and C starvation in a boreal climate sentinel lichen
<p>The long-term potential for acclimation by lichens to warming climates is poorly known, despite their prominent roles in forested ecosystems. Although often considered "extremophiles", lichens may not readily acclimate to novel climates well beyond historical norms. In a previous study (Smith et al. 2018), Evernia mesomorpha transplants in a whole-ecosystem climate change experiment showed drastic mass loss after one year of warming. We examined the causes of this warming-induced mass loss by measuring physiological, functional, and reproductive attributes of lichen transplants. Severe loss of mass and physiological function occurred above +2ºC of warming. Loss of algal symbionts ("bleaching") and turnover in algal community compositions increased with temperature and were the clearest impacts of experimental warming. Enhanced CO 2 had no significant physiological or symbiont composition effects. The functional loss of algal photobionts led to significant loss of mass and specific thallus mass (STM), which in turn reduced water-holding capacity (WHC). Although algal genotypes remained detectable in thalli exposed to higher temperatures, within-thallus photobiont communities shifted in composition towards greater diversity. Analogous to the effects of climate change on corals, the balance of symbiont carbon metabolism in lichens is central to their resilience to changing conditions.</p>
Impacts of neonicotinoid insecticides on bumble bee energy metabolism are revealed under nectar starvation
<p>Bumble bees are an important group of insects that provide essential pollination services as a byproduct of their foraging behaviors. These pollination services are driven, in part, by energetic exchanges between flowering plants and individual bees. Thus, it is important to examine bumble bee energy metabolism and explore how it might be influenced by external stressors, which contribute to declines in global pollinator populations. Two stressors that are commonly encountered by bees include insecticides and nutritional stress. Our study examines the effects of neonicotinoid insecticide exposure alone, and in combination with nutritional stress, on bumble bee metabolism using a novel metabolomic approach. We hypothesized that exposure to the insecticide imidacloprid would disrupt bumble bee energy metabolism, leading to changes in key metabolites involved in energy metabolism. We exposed Bombus impatiens workers to imidacloprid according to one of three exposure paradigms designed to explore how sustained versus more limited imidacloprid exposure influences energy metabolites. After bees were exposed to imidacloprid, they were subjected to artificial nectar starvation. Our results showed that the strongest effects of imidacloprid were observed when treated bees also experienced artificial nectar starvation, suggesting a combinatorial effect of neonicotinoids and nutritional stress on energy metabolism. Overall, this study provides important insights into the mechanisms underlying the impact of neonicotinoid insecticides on bumble bees and underscores the need for further investigation into the complex interactions between environmental stressors and bee metabolism.</p>
DATA FOR: Carbon starvation following a decade of experimental drought consumes old reserves in Pinus edulis
<ol> <li>Pre-dawn water potential data used in Fig. 2.</li> <li>Gas exchange data (Anet) used in Fig. 2, along with transpiration data used in supplemental Fig. S8.</li> <li>Fv/fm data used in Fig. 2.</li> <li>Needle growth, shoot growth, and browning data used in Fig. 2.</li> <li>Bole respiration rate data used in Fig. 3.</li> <li>NSC concentration data used in Fig. 5.</li> <li>Respired carbon mass used to calculate total NSC pool ages in Fig. 6b, along with radiocarbon calendar dated ages of sapwood NSC.</li> <li>Raw ring widths from all cross dated trees used to generate BAI for analysis presented in Fig. 4.</li> </ol>
Effect of Aldosterone on Energy Starvation in Heart Failure
ClinicalTrials.gov study NCT00574119. IPD Sharing: NO. Countries: 1. Publications: 5.
Role of UGT344J7 in the response of the bird cherry-oat aphid to starvation and high temperature stress
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Short neuropeptide F regulates the starvation mediated enhanced locomotor activity in Drosophila
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Intergenerations effects of starvation on Athalia
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Impacts of neonicotinoid insecticides on bumble bee energy metabolism are revealed under nectar starvation
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Loss of the starvation-and-light fruitbody formation trigger in the myxomycete Physarum roseum
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All or nothing: switch to high current reproductive investment under risk of starvation in male kelp crab
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Starvation increases susceptibility to bacterial infection and promotes systemic pathogen proliferation in Drosophila melanogaster females
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Climate warming causes photobiont degradation and C starvation in a boreal climate sentinel lichen
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Adaptation to starvation requires a flexible circadian clockwork in Neurospora crassa (RNAseq)
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Cricket thermal preferences and starvation
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Crystal structure of the coild-coil oligomerisation domain of the transcription factor PHOSPHATE STARVATION RESPONSE 1 (PHR1) from Arabidopsis - native dataset form 3
<p>gzipped tar archive contains the raw diffraction images (Pilatus 2M-F detector, SLS beamline PXIII), the data processing directory (xds_nat1) and the scaled and converted structure factors (xdsconv_nat1).</p>
Crystal structure of the coild-coil oligomerisation domain of the transcription factor PHOSPHATE STARVATION RESPONSE 1 (PHR1) from Arabidopsis - native dataset form 2
<p>the gzipped tar archive contains the raw diffraction images (Swiss Light Source beamline PXIII, Pilatus 2M-F detector), the data processing directory (xds_nat1) and the scaled and converted structure factors (xdsconv_nat1)</p>
Crystal structure of the coild-coil oligomerisation domain of the transcription factor PHOSPHATE STARVATION RESPONSE 1 (PHR1) from Arabidopsis - native dataset form 1
<p>gz tar archive contains the diffraction images (Pilatus 2M-F detector, SLS beamline PXIII), the data processing files (xds_nat1) and the scaled and converted data in mtz format (xdsconv_nat1)</p>
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Allen Brain Atlas
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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.
OpenNeuro
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