Ontology highlight
ABSTRACT:
PROVIDER: PRJNA563509 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR10058209.fastq.gz | Fastqsanger.gz | |||
| SRR10058210.fastq.gz | Fastqsanger.gz | |||
| SRR10058211.fastq.gz | Fastqsanger.gz | |||
| SRR10058212.fastq.gz | Fastqsanger.gz | |||
| SRR10058213.fastq.gz | Fastqsanger.gz |
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Project description:Roots of Arabidopsis thaliana do not engage in symbiotic association with mycorrhizal fungi but host taxonomically diverse fungal communities that influence health and disease states. We sequenced the genomes of 41 isolates representative of the A. thaliana root mycobiota for comparative analysis with 79 other plant-associated fungi. We report that root mycobiota members evolved from ancestors having diverse lifestyles and retained diverse repertoires of plant cell wall-degrading enzymes (PCWDEs) and effector-like small secreted proteins. We identified a set of 84 gene families predicting best endophytism, including families encoding PCWDEs acting on xylan (GH10) and cellulose (AA9). These genes also belong to a core transcriptional response induced by phylogenetically-distant mycobiota members in A. thaliana roots. Recolonization experiments with individual fungi indicated that strains with detrimental effects in mono-association with the host not only colonize roots more aggressively than those with beneficial activities but also dominate in natural root samples. We identified and validated the pectin degrading enzyme family PL1_7 as a key component linking aggressiveness of endophytic colonization to plant health.
2021-11-03 | GSE169629 | GEO
Project description:The recent release of a large number of genomes from ectomycorrhizal, orchid mycorrhizal and root endophytic fungi have provided deep insight into fungal lifestyle-associated genomic adaptation. Comparative analyses of symbiotic fungal taxa showed that similar outcomes of interactions in distant related root symbioses are examples of convergent evolution. The order Sebacinales represents a sister group to the Agaricomycetes (Basidiomycota) that is comprised of ectomycorrhizal, ericoid-, orchid- mycorrhizal, root endophytic fungi and saprotrophs (Oberwinkler et al., 2013). Sebacinoid taxa are widely distributed from arctic to temperate to tropical ecosystems and are among the most common and species-rich groups of ECM, OM and endophytic fungi (Tedersoo et al., 2012, Tedersoo et al., 2010, Oberwinkler et al., 2013). The root endophyte Piriformospora indica and the orchid mycorrhizal fungus S. vermifera (MAFF 305830) are non-obligate root symbionts which were shown to be able to interact with many different experimental hosts, including the non-mycorrhizal plant Arabidopsis thaliana. These two fungi display similar colonization strategies in barley and in Arabidopsis and the ability to establish beneficial interactions with different hosts (Deshmukh et al., 2006). Colonization of the roots by P. indica and S. vermifera results in enhanced seed germination and biomass production as well as increased resistance against biotic and abiotic stresses in its experimental hosts, including various members of the Brassicaceae family, barley, Nicotiana attenuata and switchgrass (Ghimire, 2011, Ghimire et al., 2009, Ghimire et al., 2011, Waller et al., 2008, Barazani et al., 2007, Deshmukh et al., 2006). Microarray experiments were performed to identify and characterize conserved sebacinoid genes as key determinants in the Sebacinales symbioses.
2015-06-01 | GSE60736 | GEO
Project description:The interactions of crops with root-colonizing endophytic microorganisms are highly relevant to agriculture, because endophytes can modify plant resistance to pests and increase crop yields. We investigated the interactions between the host plant <i>Zea mays</i> and the endophytic fungus <i>Trichoderma virens</i> at 5 days postinoculation grown in a hydroponic system. Wild-type <i>T. virens</i> and two knockout mutants, with deletion of the genes <i>tv2og1</i> or <i>vir4</i> involved in specialized metabolism, were analyzed. Root colonization by the fungal mutants was lower than that by the wild type. All fungal genotypes suppressed root biomass. Metabolic fingerprinting of roots, mycelia, and fungal culture supernatants was performed using ultrahigh performance liquid chromatography coupled to diode array detection and quadrupole time-of-flight tandem mass spectrometry. The metabolic composition of <i>T. virens</i>-colonized roots differed profoundly from that of noncolonized roots, with the effects depending on the fungal genotype. In particular, the concentrations of several metabolites derived from the shikimate pathway, including an amino acid and several flavonoids, were modulated. The expression levels of some genes coding for enzymes involved in these pathways were affected if roots were colonized by the ∆<i>vir4</i> genotype of <i>T. virens</i>. Furthermore, mycelia and fungal culture supernatants of the different <i>T. virens</i> genotypes showed distinct metabolomes. Our study highlights the fact that colonization by endophytic <i>T. virens</i> leads to far-reaching metabolic changes, partly related to two fungal genes. Both metabolites produced by the fungus and plant metabolites modulated by the interaction probably contribute to these metabolic patterns. The metabolic changes in plant tissues may be interlinked with systemic endophyte effects often observed in later plant developmental stages.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.
2021-07-08 | MTBLS1964 | MetaboLights
Project description:In the study, two soybean genotypes were selected to conduct high and low P, high and low Mg, and AM fungal inoculation treatments, combined with RNA-seq sequencing technique in order to investigate the physiological and molecular mechanisms of the symbiosis between soybean and AM fungi affected by P and Mg treatments. The results showed that both Mg application and AM fungal inoculation were beneficial to promote soybean growth under low P condition. And there was a synergistic effect between the Mg concentration and the P concentration in the root of HN112 under the inoculation condition. RNA-seq sequencing was carried out using the roots of P-efficient soybean HN89 under different Mg and inoculation treatments with low P condition, and the difference of gene expression profiles was analyzed between high and low Mg treatments, and different inoculation treatments. According to the analysis of GO function classification and KEGG enrichment, under high Mg condition, the metabolic pathway was mainly enriched in lipid metabolism and glucose metabolism pathway under the inoculation treatment compared with the non-inoculation treatment, which regulated carbon metabolism pathway. Under the low Mg condition, the metabolic pathway was mainly enriched in the photosynthesis- antenna protein pathway to regulate the photosynthesis pathway under the inoculation treatment compared with the non-inoculation treatment. At the same time, the inoculation treatment significantly increased soybean root starch concentration under low Mg condition, compared with the non-inoculation treatment, suggesting that the significant up-regulation of a large number of photosynthesis related genes might be related to the significant increase of starch concentration at this treatment.
2022-06-13 | GSE132679 | GEO
Project description:Willow root fungal endophytic metagenome, ITS1 amplicons
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Project description:As an important adaptation to drought stress, several agronomic species, such as soybean and maize, can maintain the primary root substantial elongation rates at low water potentials, whereas shoot growth stops completely. In soybean, kinematic characterization of the spatial patterns of cell expansion within the root elongation zone showed that at low water potentials, elongation rates were preferentially maintained toward the root apex but were progressively inhibited at more basal locations, resulting in a shortened growth zone. To explore the molecular mechanism of root elongation in response to water stress, we set out to examine the expression of soybean genes in different root regions after 5 hours (5h) and 48 hours (48h) water stress treatment using the Affymetrix Soybean GeneChip containing 37,500 G. max probe sets.
2020-08-15 | GSE102749 | GEO
Project description:Prairie Root Endophytic Bacterial Communities
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Project description:Inoculation of endophytic fungal communities
| PRJNA518913 | ENA