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17 results for “soil microbiota”
Data for: Soil microbiota explain differences in herbivore resistance between native and invasive populations of a perennial herb
<p><span>Soil microbiota can either slow down or facilitate plant invasions through their effects on plant performance. Associations with soil microbiota can also modify other plant traits such as herbivore resistance, which can indirectly affect the outcome of plant introductions. </span></p> <p><span>We studied the effects of soil microbiota on the perennial herbaceous legume <em>Lupinus polyphyllus</em> that hosts nitrogen-fixing mutualistic bacteria. We compared the plant performance, herbivore resistance, and volatile organic compounds (VOCs) of plants from native (North American) and invasive (Finnish) populations of the species that were inoculated with intact or autoclaved soil from an invasive population. </span></p> <p><span>We found that plants of both origins greatly benefited from the intact soil inoculum with respect to all performance measures considered, suggesting that beneficial nitrogen-fixing rhizobia in the soil play a major role in shaping plant phenotypes. For three traits, effects of the intact soil inoculum were stronger in plants of native origin than in plants of invasive origin (number of leaves, herbivore resistance, and total biomass). With the intact soil inoculum, plants of invasive origin were more resistant to snails than plants of native origin. Strikingly, differences in resistance to snails between plants of different origins disappeared entirely when soil microbes were reduced. Soil inoculum treatment altered the composition of the leaf VOC bouquet similarly regardless of plant origin. </span></p> <p><span>Synthesis: These results demonstrate the ability of <em>L. polyphyllus</em> to associate with and benefit from putatively novel soil microbiota including rhizobia, which has likely contributed to its invasion success. Furthermore, it appears that the invasive populations have adapted to be less reliant on their symbionts, which further facilitates species spread. To our knowledge, this is the first study to demonstrate that differences in herbivore resistance between native and invasive plant populations of the same species can depend entirely on soil microbiota.</span></p>
Data for: Soil domestication by rice cultivation results in plant-soil feedback through shifts in soil microbiota
<p>This repository contains the data for the manuscript entitled "Soil domestication by rice cultivation results in plant-soil feedback through shifts in soil microbiota." Analysis scripts can be found at <a href="https://github.com/bulksoil/SoilDomestication">https://github.com/bulksoil/SoilDomestication</a></p>
Data for: Soil microbiota explain differences in herbivore resistance between native and invasive populations of a perennial herb
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Multifaceted precipitation patterns impact biocrust functionality in drylands: A cascade of variability via species replacement in soil microbiota
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Data from: Vertical distribution of the soil microbiota along a successional gradient in a glacier forefield
Spatial patterns of microbial communities have been extensively surveyed in well-developed soils, but few studies investigated the vertical distribution of microorganisms in newly developed soils after glacier retreat. We used 454-pyrosequencing to assess whether bacterial and fungal community structures differed between stages of soil development (SSD) characterized by an increasing vegetation cover from barren (vegetation cover: 0%/ age: 10 years), sparsely-vegetated (13%/ 60 years), transient (60%/ 80 years) to vegetated (95%/ 110 years) and depths (surface, 5 and 20 cm) along the Damma glacier forefield (Switzerland). Stage of soil development significantly influenced the bacterial and fungal communities. Based on indicator species analyses, metabolically versatile bacteria (e.g. Geobacter) and psychrophilic yeasts (e.g. Mrakia) characterized the barren soils. Vegetated soils with higher C, N and root biomass consisted of bacteria able to degrade complex organic compounds (e.g. Candidatus Solibacter), ligno-cellulolytic Ascomycota (e.g. Geoglossum) and ectomycorrhizal Basidiomycota (e.g. Laccaria). Soil depth only influenced bacterial and fungal communities in barren and sparsely-vegetated soils. These changes were partly due to more silt and higher soil moisture in the surface. In both soil ages, the surface was characterized by OTUs affiliated to Phormidium and Sphingobacteriales. In lower depths, however, bacterial and fungal communities differed between both SSDs. Lower depths of sparsely-vegetated soils consisted of OTUs affiliated to Acidobacteria and Geoglossum whereas depths of barren soils were characterized by OTUs related to Gemmatimonadetes. Overall, plant establishment drives the soil microbiota along the successional gradient but does not influence the vertical distribution of microbiota in recently deglaciated soils.
Data from: Genes, geology, and germs: gut microbiota across a primate hybrid zone are explained by site soil properties, not host species
Gut microbiota in geographically isolated host populations are often distinct. These differences have been attributed to between-population differences in host behaviors, environments, genetics, and geographic distance. However, which factors are most important remains unknown. Here we fill this gap for baboons by leveraging information on 13 environmental variables from 14 baboon populations spanning a natural hybrid zone. Sampling across a hybrid zone allowed us to additionally test whether phylosymbiosis (codiversification between hosts and their microbiota) is detectable in admixed, closely related primates. We found little evidence of genetic effects: neither host genetic ancestry, host genetic relatedness, nor genetic distance between host populations were strong predictors of baboon gut microbiota. Instead, gut microbiota were best explained by the baboons' environments, especially the soil's geologic history and exchangeable sodium. Indeed, soil effects were 15 times stronger than those of host-population FST, perhaps because soil predicts which foods are present, or because baboons are terrestrial and consume soil microbes incidentally with their food. Our results support an emerging picture in which environmental variation is the dominant predictor of host-associated microbiomes. We are the first to show that such effects overshadow host species identity among members of the same primate genus.
Performance and microbiota of Lupinus polyphyllus for Plant and Soil
<p><strong><i>Purpose</i></strong>: In cold climates, glyphosate residues may linger in soils, with effects on plant-microbe interactions and, consequently, plant performance. Here, we explore the influence of glyphosate residues on the endophytic microbiota (bacteria and fungi) and performance of the perennial nitrogen-fixing weed <i>Lupinus polyphyllus</i>.</p> <p><strong><i>Methods</i></strong>:<b> </b>In a common garden, we grew plants from six populations of <i>L. polyphyllus</i> in glyphosate-treated or untreated control soils, with or without additional phosphorus. We sampled plant microbiota (leaves, roots, nodules) and assessed plant performance based on six traits: height, retrogression probability (i.e. shrinkage), biomass, root:shoot ratio, nodule number, and nodule viability.</p> <p><strong><i>Results</i></strong>: The richness of plant endophytic microbial communities was determined by soil phosphorus level rather than by glyphosate treatment. However, for bacteria, the composition of these communities differed between glyphosate-treated and control soils across plant tissue types; no difference was observed for fungi. The plant bacterial communities in both soil types were dominated by potential nitrogen-fixing bacteria belonging to family Bradyrhizobiaceae, and particularly so in glyphosate-treated soils. Overall, though, these changes in plant bacterial communities had a minor effect on plant performance: the only difference we detected was that the probability of retrogression was occasionally higher in glyphosate-treated soils than in control soils.</p> <p><strong><i>Conclusion</i></strong>: Our findings indicate that glyphosate-based herbicides, when applied at the recommended frequency and concentration, may not have critical effects on the growth of short-lived weeds after the safety period has passed; however, the endophytic microbiota of such weeds may experience longer-lasting shifts in community structure.</p>
All data and code from Honeyman, et al. 2022: Statistical learning and uncommon soil microbiota explain biogeochemical responses after wildfire
<p>The zipped folder contains all data and code necessary to reproduce analyses from the manuscript. Note that raw sequencing reads are available at NCBI SRA under BioProject PRJNA767436.</p>
Data from: Long-term effects of host-specific soil microbiota on plant interactions
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Data from: Genes, geology, and germs: gut microbiota across a primate hybrid zone are explained by site soil properties, not host species
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Data from: Vertical distribution of the soil microbiota along a successional gradient in a glacier forefield
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Data from: Mimicking a rainfall gradient to test the role of soil microbiota for mediating plant species responses to drier conditions
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Performance and microbiota of Lupinus polyphyllus for Plant and Soil
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A soil fungus confers plant resistance against a phytophagous insect by disrupting the symbiotic role of its gut microbiota
<p>Dataset related to the manuscript titled "A hidden interkingdom competition underlies plant-insect interactions".</p> <p>Please, read the README.txt file for more info about zipped data content. </p>
The immune response and microbiota profiles during co-infection with P. vivax and soil-transmitted helminths
GEO Series GSE144792. Homo sapiens. 2 samples. Type: Expression profiling by high throughput sequencing.
The supplement material of 'Could land abandonment with human intervention benefit cropland restoration? From the perspective of soil microbiota'
<p>Figure S1 The study area and experimental plots. Figure S2 The correlation analysis of soil properties in each year, based on Spearman’s Rank correlation analysis. Only significant Spearman’s coefficients are shown (p < 0.05). Figure S3 Mantel test between soil properties and microbial community structure. *, ** and *** are used to show statistical significance at the 0.05, 0.01, and 0.001 level, respectively. Figure S4 The results of linear discriminant analysis effect size (LEfSe) on bacterial and fungal communities. The cutoff of LDA score is 2. Figure S5 The relative importance ranks of edaphic and human factors on microbial communities, based on %IncMSE of random forests model.</p>
The effects of soil phosphorous content on microbiota are driven by the plant phosphate starvation response
GEO Series GSE129396. Arabidopsis thaliana. 49 samples. Type: Expression profiling by high throughput sequencing.
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International Brain Laboratory public data
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OpenNeuro
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