Ontology highlight
ABSTRACT:
PROVIDER: PRJNA939840 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR23648354_1.fastq.gz | Fastqsanger.gz | |||
| SRR23648354_2.fastq.gz | Fastqsanger.gz | |||
| SRR23648355_1.fastq.gz | Fastqsanger.gz | |||
| SRR23648355_2.fastq.gz | Fastqsanger.gz | |||
| SRR23648356_1.fastq.gz | Fastqsanger.gz |
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Similar Datasets
Project description:au07-05_groundworms - groundworms - Do earthworms affect plant growth through signal molecules? - Plants were grown in a sandy soil from the Centre de Recherche en Ecologie Expérimentale et Prédictive (CEREEP, France), in the presence or absence of earthworms. Soil was dried and sieved at 2 mm before to be put in the pots. There was 2 levels of treatment (presence or absence of earthworms in the soil), and 5 plants per treatments. Keywords: treated vs untreated comparison
2010-10-01 | GSE24393 | GEO
Project description:au07-05_groundworms - groundworms - Do earthworms affect plant growth through signal molecules? - Plants were grown in a sandy soil from the Centre de Recherche en Ecologie Expérimentale et Prédictive (CEREEP, France), in the presence or absence of earthworms. Soil was dried and sieved at 2 mm before to be put in the pots. There was 2 levels of treatment (presence or absence of earthworms in the soil), and 5 plants per treatments. Keywords: treated vs untreated comparison 4 dye-swap - CATMA arrays
2010-09-30 | E-GEOD-24393 | biostudies-arrayexpress
Project description:Background: The soil environment is responsible for sustaining most terrestrial plant life on earth, yet we know surprisingly little about the important functions carried out by diverse microbial communities in soil. Soil microbes that inhabit the channels of decaying root systems, the detritusphere, are likely to be essential for plant growth and health, as these channels are the preferred locations of new root growth. Understanding the microbial metagenome of the detritusphere and how it responds to agricultural management such as crop rotations and soil tillage will be vital for improving global food production. Methods: The rhizosphere soils of wheat and chickpea growing under + and - decaying root were collected for metagenomics sequencing. A gene catalogue was established by de novo assembling metagenomic sequencing. Genes abundance was compared between bulk soil and rhizosphere soils under different treatments. Conclusions: The study describes the diversity and functional capacity of a high-quality soil microbial metagenome. The results demonstrate the contribution of the microbiome from decaying root in determining the metagenome of developing root systems, which is fundamental to plant growth, since roots preferentially inhabit previous root channels. Modifications in root microbial function through soil management, can ultimately govern plant health, productivity and food security.
2020-03-06 | GSE146427 | GEO
Project description:Earthworms enhance plant growth but the precise mechanism by which this occurs is not known. An understanding of the mechanism could potentially support changes in agricultural management reducing fertiliser usage and therefore costs and the carbon footprint of agriculture. We conducted a factorial experiment in which 5 strains of wheat were grown in the presence and absence of earthworms under regular watering and droughted conditions. The different wheat strains all responded in a similar fashion. Plant biomass was greater in the presence of earthworms and under regular watering. The presence of earthworms reduced the impact of drought on plant biomass and also slowed down the rate of drying of the droughted soils. Plant nutrient content (N, P, Si) showed no consistent pattern with treatments but total N, P and Si mirrored plant biomass and decreased in the order earthworm-present watered > earthworm-present droughted > earthworm-absent watered > earthworm-absent droughted. Nutrient availability in the soil, as assessed by chemical extractions showed no consistent pattern with treatments. Differential gene expression of plants was greater between watering treatments than between earthworm treatments. Genes that were differentially expressed between the earthworm treatments predominantly related to plant defences, abiotic stress and control of plant growth though a couple were linked to both nitrogen cycling and stress responses. The soil microbiome of the earthworm-present treatments was more associated with nutrient-rich environments, the promotion of plant growth and the suppression of plant pathogens. Our data suggest that enhanced plant growth was due to changes in the microbiome due to earthworm processing of the soil rather than changes in nutrient availability due to the presence of earthworms.
2025-03-03 | GSE214932 | GEO
Project description:The take-all disease caused by the soilborne fungus Gaeumannomyces graminis var tritici (Ggt) is one of the most-studied and widespread root diseases worldwide. Here, we investigated the ability of the earthworm Aporrectodea caliginosa to induce take-all disease tolerance in Triticum aestivum. In a greenhouse experiment, plants were grown in a sandy soil. Plants were inoculated or not with Ggt and in the presence or absence of earthworms. There was 4 levels of treatment (plants only, inoculated with Ggt, inoculated with earthworms or inoculated with earthworms and Ggt), and 2-3 plants per treatments.
2013-06-01 | E-GEOD-47479 | biostudies-arrayexpress
Project description:The fate of the carbon stocked in permafrost soils following global warming and permafrost thaw is of major concern in view of the potential for increased CH4 and CO2 emissions from these soils. Complex carbon compound degradation and greenhouse gas emissions are due to soil microbial communities, but their composition and functional potential in permafrost soils are largely unknown. Here, a 2 m deep permafrost and its overlying active layer soil were subjected to metagenome sequencing, quantitative PCR, and microarray analyses. The active layer soil and 2 m permafrost soil microbial community structures were very similar, with Actinobacteria being the dominant phylum. The two soils also possessed a highly similar spectrum of functional genes, especially when compared to other already published metagenomes. Key genes related to methane generation, methane oxidation and organic matter degradation were highly diverse for both soils in the metagenomic libraries and some (e.g. pmoA) showed relatively high abundance in qPCR assays. Genes related to nitrogen fixation and ammonia oxidation, which could have important roles following climatic change in these nitrogen-limited environments, showed low diversity but high abundance. The 2 m permafrost soil showed lower abundance and diversity for all the assessed genes and taxa. Experimental biases were also evaluated and showed that the whole community genome amplification technique used caused large representational biases in the metagenomic libraries. This study described for the first time the detailed functional potential of permafrost-affected soils and detected several genes and microorganisms that could have crucial importance following permafrost thaw. A 2m deep permafrost sample and it overlying active layer were sampled and their metagenome analysed. For microarray analyses, 8 other soil samples from the same region were used for comparison purposes.
2010-05-06 | E-GEOD-20073 | biostudies-arrayexpress
Project description:Purpose: We studied the potential effects of lindane aging in soil on model earthworm Eisenia fetida at the transcriptomic level. Methods: transcriptomes of earthworms were generated by RNA sequencing using Illumina Hiseq Xten platform. Results: There were 1325 DE unigenes in G2 (1074 up and 251 down), 784 DE unigenes in G3 (457 up and 327 down), 3658 DE unigenes in G4 (2294 up and 1364 down), and 1511 DE unigenes in G5 (929 up and 582 down) compared with G1. Except in G2, lindane exposure caused significant impacts on cholinergic and GABAergic synaptic transmission in earthworms in other groups. The metabolic processes of ACh were also altered. It was of note that the term positive regulation of locomotion (GO:0040017) in G5 could be regarded as the phenotype of the interaction of two NTs. Conclusions: We found that aging of lindane prior to exposure promoted the disrupting effects of lindane on earthworm neurotransmission.
2020-08-16 | GSE118678 | GEO
Project description:The fate of the carbon stocked in permafrost soils following global warming and permafrost thaw is of major concern in view of the potential for increased CH4 and CO2 emissions from these soils. Complex carbon compound degradation and greenhouse gas emissions are due to soil microbial communities, but their composition and functional potential in permafrost soils are largely unknown. Here, a 2 m deep permafrost and its overlying active layer soil were subjected to metagenome sequencing, quantitative PCR, and microarray analyses. The active layer soil and 2 m permafrost soil microbial community structures were very similar, with Actinobacteria being the dominant phylum. The two soils also possessed a highly similar spectrum of functional genes, especially when compared to other already published metagenomes. Key genes related to methane generation, methane oxidation and organic matter degradation were highly diverse for both soils in the metagenomic libraries and some (e.g. pmoA) showed relatively high abundance in qPCR assays. Genes related to nitrogen fixation and ammonia oxidation, which could have important roles following climatic change in these nitrogen-limited environments, showed low diversity but high abundance. The 2 m permafrost soil showed lower abundance and diversity for all the assessed genes and taxa. Experimental biases were also evaluated and showed that the whole community genome amplification technique used caused large representational biases in the metagenomic libraries. This study described for the first time the detailed functional potential of permafrost-affected soils and detected several genes and microorganisms that could have crucial importance following permafrost thaw.
2010-03-08 | GSE20073 | GEO
Project description:The potential of the earthworm Eisenia andrei to reduce soil methanogens, and thus methane emissions to the atmosphere, were assayed in a microcosm experiment. Soils were incubated for 2, 4 and 6 months. We measured microarray parameters (methanogenic diversity) at the start of incubation, as well as after 2, 4 and 6 months of incubation in microcosms with or without earthworms. Methanosarcina barkeri was the most abundant genus that was revealed by AnaeroChip in our experiment.
2011-11-11 | E-MEXP-2843 | biostudies-arrayexpress
Project description:Background: Earthworms are essential for a healthy soil ecosystem, performing key functions such as bioturbation. The soil ecosystem can be challenged by natural toxins such as isothiocyanates (ITC), secondary metabolites produced by many commercial crops. This study investigated the effects of the natural toxin, 2-phenylethyl isothiocyanate on the earthworm Eisenia andrei using an ecotoxicogenomics approach that combined standardised ecotoxicological testing with gene expression analyses. Results and discussion: Exposure to 2-Phenylethyl ITC reduced both survival and reproduction of E. andrei in a dose-dependent manner, with an EC50 (reproduction) value of 556 nmol/g soil. Cross-species comparative genomic hybridisation validated the applicability of an existing 4x44k E. fetida microarray to E. andrei. Gene expression profiles revealed the importance of metallothionein (mt) as an early warning signal when E. andrei is exposed to low concentrations of 2-phenylethyl ITC. Allignment of these mt genes with the mt-2 gene of Lumbricus rubellus showed that there must at least have 2 mt genes in the Eisenia sp. genome. At high exposure concentrations of 2-phenylethyl ITC gene expression was mainly affected by inhibiting chitinase activities, inducing an oxidative stress response, and stimulating energy metabolism. KEGG pathway analysis, furthermore, implied that the high concentration may cause impaired light sensitivity, angiogenesis (e.g. wound healing), olfactory perception (olfaction), learning and memory. Conclusions: Increased levels of isothiocyanates may be found in the field in the near future. Risks of such compounds should be carefully investigated before allowing them to enter the soil on a large scale. This is the first study to investigate the effects of an isothiocyanate on an earthworm both on the ecotoxicological and genomic level.
2013-08-11 | GSE43600 | GEO