Response of plant-associated bacterial community to simulated climate changes
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REPOSITORIES: ENA
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Project description:Response of soil bacterial communities to simulated climate changes
| PRJEB7649 | ENA
Project description:Microbial community response and pedogenesis under simulated climate change in Antarctic soils
| PRJEB85863 | ENA
Project description:Soil transplant serves as a proxy to simulate climate change in realistic climate regimes. Here, we assessed the effects of climate warming and cooling on soil microbial communities, which are key drivers in Earth’s biogeochemical cycles, four years after soil transplant over large transects from northern (N site) to central (NC site) and southern China (NS site) and vice versa. Four years after soil transplant, soil nitrogen components, microbial biomass, community phylogenetic and functional structures were altered. Microbial functional diversity, measured by a metagenomic tool named GeoChip, and phylogenetic diversity are increased with temperature, while microbial biomass were similar or decreased. Nevertheless, the effects of climate change was overridden by maize cropping, underscoring the need to disentangle them in research. Mantel tests and canonical correspondence analysis (CCA) demonstrated that vegetation, climatic factors (e.g., temperature and precipitation), soil nitrogen components and CO2 efflux were significantly correlated to the microbial community composition. Further investigation unveiled strong correlations between carbon cycling genes and CO2 efflux in bare soil but not cropped soil, and between nitrogen cycling genes and nitrification, which provides mechanistic understanding of these microbe-mediated processes and empowers an interesting possibility of incorporating bacterial gene abundance in greenhouse gas emission modeling.
2013-10-30 | GSE51592 | GEO
Project description:Soil transplant serves as a proxy to simulate climate change in realistic climate regimes. Here, we assessed the effects of climate warming and cooling on soil microbial communities, which are key drivers in EarthM-bM-^@M-^Ys biogeochemical cycles, four years after soil transplant over large transects from northern (N site) to central (NC site) and southern China (NS site) and vice versa. Four years after soil transplant, soil nitrogen components, microbial biomass, community phylogenetic and functional structures were altered. Microbial functional diversity, measured by a metagenomic tool named GeoChip, and phylogenetic diversity are increased with temperature, while microbial biomass were similar or decreased. Nevertheless, the effects of climate change was overridden by maize cropping, underscoring the need to disentangle them in research. Mantel tests and canonical correspondence analysis (CCA) demonstrated that vegetation, climatic factors (e.g., temperature and precipitation), soil nitrogen components and CO2 efflux were significantly correlated to the microbial community composition. Further investigation unveiled strong correlations between carbon cycling genes and CO2 efflux in bare soil but not cropped soil, and between nitrogen cycling genes and nitrification, which provides mechanistic understanding of these microbe-mediated processes and empowers an interesting possibility of incorporating bacterial gene abundance in greenhouse gas emission modeling. Fifty four samples were collected from three soil types (Phaeozem,Cambisol,Acrisol) in three sites (Hailun, Fengqiu and Yingtan) along a latitude with reciprocal transplant; Both with and without maize cropping in each site; Three replicates in every treatments.
2013-10-30 | E-GEOD-51592 | biostudies-arrayexpress
Project description:Selection and simulated climate-warming effects on Brook Charr sperm DNA methylation
| PRJNA944546 | ENA
Project description:Rice plants cultivated on mountain areas are frequently exposed to acid fog and natural fog events. In this report, we analyzed the expression profiles of the rice plant with acid fog (SiAF) or neutral fog (SiNF) treatment for 1 and 7 days. Microarray results suggested that ROS generation was induced by not only SiAF, but also SiNF treatment, and it occurred in apoplast, not in organelles. Genes for defense- and stress-responses was also induced by both SiAF and SiNF treatments. The induction occurred in plants treated with SiAF for both 1 day and 7 days, and it was also detected in plants treated with SiAF for 7 days. These results suggest that both SiAF and SiNF treatments are abiotic stresses accompanying ROS generation in apoplast. Comparison between continuous fog treated shoots and control shoots. Biological replicates: 3 simulated acid fog (pH 3.0) treated (SiAF) for 1 day; 3 simulated acid fog (pH 3.0) treated (SiAF) for 7 days; 3 simulated neutral fog (SiNF) treated for 1 day; 3 simulated neutral fog (SiNF) treated for 7 days; 3 controls for 1 day; 3 controls for 7 days. Independently grown and harvested. Cultivar: Hinohikari 1 sample derived from 5 plants grown under the same conditons. Total: 18 samples, 12 comparisons.
2012-06-30 | E-GEOD-31196 | biostudies-arrayexpress
Project description:16S rRNA V3-V4 amplicon sequencing of simulated saline soil microbial communitie
| PRJNA1335863 | ENA
Project description:Response of alpine soil bacterial community to simulated warming
| PRJNA800209 | ENA
Project description:Predicting how climate change affects biotic interactions and their evolution poses a challenge. Plant-insect herbivore interactions are particularly sensitive to climate change, as climate-induced changes in plant quality cascade into the performance of insect herbivores. Whereas the immediate survival of herbivore individuals depends on plastic responses to climate change induced nutritional stress, long-term population persistence via evolutionary adaptation requires genetic variation for these responses. In order to assess the prospects for population persistence under climate change, it is therefore crucial to characterise response mechanisms to climate change induced stressors, and quantify their variability in natural populations. Here, we test developmental and transcriptomic responses to water limitation induced host plant quality change in a Glanville fritillary butterfly (Melitaea cinxia) metapopulation. We combine nuclear magnetic resonance spectroscopy on the plant metabolome, larval developmental assays and an RNA seq analysis of the larval transcriptome. We observed that responses to feeding on water limited plants, in which amino acids and aromatic compounds are enriched, showed marked intrapopulation variation, with individuals of some families performing better on control and others on water limited plants. The transcriptomic responses were concordant with the developmental responses: Families exhibiting opposite developmental responses also produced opposite transcriptomic responses, e.g. in growth associated intracellular signalling. The opposite developmental and transcriptomic responses are associated with between families differences in organic compound catabolism and storage protein production. The results reveal heritable intrapopulation variability in plasticity, suggesting potential for evolutionary responses to drought-induced changes in host plant quality in the Finnish M. cinxia metapopulation.
2021-02-25 | GSE159376 | GEO