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共检索到58条 ,权限内显示50条;
Data from: Resolving coral photoacclimation dynamics through coupled photophysiological and metabolomic profiling
- 负责人：
- DOI：
- doi:10.5061/dryad.bn695rf
- 摘要：
- at 7 and 21 days for untargeted LC-MS and GC-MS metabolomic profiling revealed metabolic reorganization before acclimation was detected using PAM fluorometry
Data from: Chemical preservation of tail feathers from Anchiornis huxleyi, a theropod dinosaur from the Tiaojishan Formation (Upper Jurassic, China)
- 负责人：
- DOI：
- doi:10.5061/dryad.1281jm4
- 摘要：
- ), solid-state 13C nuclear magnetic resonance (13C CP-MAS NMR) and pyrolysis- gas chromatography-mass spectrometry in the presence of TMAH (TMAH-Py-GC-MS
Data from: Discrimination of volatiles in herbal formula Baizhu Shaoyao San before and after processing using needle trap device with multivariate data analysis
- 负责人：
- DOI：
- doi:10.5061/dryad.6jg5g
- 摘要：
- Chinese herbal formula that is widely applied in the treatment of gastrointestinal diseases, we developed a GC–MS-based needle trap device combined
Potential Impacts of Climate Change on World Food Supply: Datasets from a Major Crop Modeling Study;;Potential Impacts of Climate Change on World Food Supply, v1 (1995\u20132110)
- 负责人：
- 关键词：
- agriculture climate
- DOI：
- doi:10.7927/h43r0qr1
- 摘要：
- egional changes in grain crop yields due to global climate change. Equilibrium and transient scenarios output from General Circulation Models (GCMs) with three levels of farmer
Data from: Non-linear effect of sea ice: Spectacled Eider survival declines at both extremes of the ice spectrum
- 负责人：
- DOI：
- doi:10.5061/dryad.s1c5m5k
- 摘要：
- . We then used matrix population models to project population trajectories using General Circulation Model (GCM) outputs of daily sea ice cover. GCMs projected
Data from: Comparative chemical analysis of volatile compounds of Echinops ilicifolius using hydrodistillation and headspace solid-phase microextraction and the antibacterial activities of its essential oil
- 负责人：
- DOI：
- doi:10.5061/dryad.37838
- 摘要：
- ) and headspace solid-phase microextraction (HS-SPME) methods were subsequently analysed by GC and GC/MS and compared. Thirty-seven and 20 components of the flower of E. ilicifolius were characterized
Data from: Oscillayers: a dataset for the study of climatic oscillations over Plio-Pleistocene time scales at high spatial-temporal resolution
- 负责人：
- DOI：
- doi:10.5061/dryad.27f8s90
- 摘要：
- generated for the Holocene, Last Interglacial and Pliocene showed good agreement with independent General Circulation Models (GCMs) for respective time periods in terms
Data from: Metabolic adaptations in a range-expanding arthropod
- 负责人：
- DOI：
- doi:10.5061/dryad.78cc8
- 摘要：
- Despite an increasing number of studies documenting life-history evolution during range expansions or shifts, we lack a mechanistic understanding of the underlying physiological processes. In this explorative study, we used a metabolomics approach to study physiological changes associated with the recent range expansion of the two-spotted spider mite (Tetranychus urticae). Mite populations were sampled along a latitudinal gradient from range core to edge and reared under benign common garden conditions for two generations. Using gas chromatography–mass spectrometry, we obtained metabolic population profiles, which showed a gradual differentiation along the latitudinal gradient, indicating (epi)genetic changes in the metabolome in association with range expansion. These changes seemed not related with shifts in the mites’ energetic metabolism, but rather with differential use of amino acids. Particularly, more dispersive northern populations showed lowered concentrations of several essential and nonessential amino acids, suggesting a potential downregulation of metabolic pathways associated with protein synthesis.
Data from: Research on catalytic pyrolysis of algae based on Py-GC /MS
- 负责人：
- 关键词：
- DOI：
- doi:10.5061/dryad.22829q7
- 摘要：
- In order to improve the quality of catalysis products of algae, composite molecular sieve catalyst was prepared by digestion and crystallization of HZSM-5 to reduce the oxygen content of the catalytic products.?According to the analysis of the pyrolysis products, the best preparation conditions were chosen of TPAOH solution 2.0mol/L, CTAB solution 10wt%, crystallization temperature?110?, digestion-crystallization time: 24-24h. The results indicate that the main function of catalysts is to promote the conversion of alcohols into hydrocarbons by reducing energy barriers. Catalyzed by the composite molecular sieve, the content of alcohols in the pyrolysis products decreased from more than 30% to less than 10%, the content of hydrocarbons increased from 20% to nearly 60%, while all the adverse components remained at a low level, which indicates that the catalytic pyrolysis products are of high quality.?The great deoxidation effect of composite molecular sieves is not only due to the expansion of the range of organic matter during re-pyrolysis, but also the increasing of the residence time of pyrolysis products inside the structure for the external mesoporous structure.
Data from: Selection on male sex pheromone composition contributes to butterfly reproductive isolation
- 负责人：
- DOI：
- doi:10.5061/dryad.768sd
- 摘要：
- Selection can facilitate diversification by inducing character displacement in mate choice traits that reduce the probability of maladaptive mating between lineages. Although reproductive character displacement (RCD) has been demonstrated in two-taxa case studies, the frequency of this process in nature is still debated. Moreover, studies have focused primarily on visual and acoustic traits, despite the fact that chemical communication is probably the most common means of species recognition. Here, we showed in a large, mostly sympatric, butterfly genus, a strong pattern of recurrent RCD for predicted male sex pheromone composition, but not for visual mate choice traits. Our results suggest that RCD is not anecdotal, and that selection for divergence in male sex pheromone composition contributed to reproductive isolation within the Bicyclus genus. We propose that selection may target olfactory mate choice traits as a more common sensory modality to ensure reproductive isolation among diverging lineages than previously envisaged.
