GEO DataSets

(Submitter supplied) Arbuscular mycorrhizal fungi arguably form the most successful and wide-spread endosymbiosis with plants. In general terms there is very little host-specificity in this interaction, indicating an extremely broad compatibility. However, host preferences as well as varying symbiotic efficiencies have been observed, the molecular basis of which is still largely unknown. Secreted proteins (SPs) may act as fungal effectors to control symbiotic efficiency in a host-dependent manner. more...

Organism:

Rhizophagus irregularis

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19734 GPL23542

18 Samples

Download data: XLSX

(Submitter supplied) Since we reasoned that RiNLE1 exerts its functions inside host nuclei, we explored the influence of RiNLE1 on plant gene expression. Therefore, we applied a dexamethasone (DEX) inducible promoter system (Borghi, 2010) to induce RiNLE1 expression (lacking signal peptide) in Medicago roots. As a control we replaced the RiNLE1 coding sequence by a short nonsense sequence.

Organism:

Medicago truncatula

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26728

6 Samples

Download data: XLSX

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Medicago sativa; Sinorhizobium meliloti; Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL4652

114 Samples

Download data: CEL

(Submitter supplied) Legumes interact with soil fungi, leading to the development of arbuscular mycorrhizal (AM) roots. Diffusible AM fungal signals were identified as sulphated and non-sulphated LCOs (sMyc-LCOs and nsMyc-LCOs). Applying Myc-LCOs on roots of symbiotic mutants, we used GeneChips to detail the global programme of gene expression in these mutants in response to the external application of Myc-LCOs. Keywords: Expression profiling by array

Organism:

Sinorhizobium meliloti; Medicago sativa; Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL4652

48 Samples

Download data: CEL

(Submitter supplied) Legumes interact with rhizobia, leading to the development of root nodules. Diffusible rhizobial signals were identified as Nod-LCOs. Applying Nod-LCOs on plantlet roots, we used GeneChips to detail the global programme of gene expression in response to the external application of Nod-LCOs.

Organism:

Medicago sativa; Medicago truncatula; Sinorhizobium meliloti

Type:

Expression profiling by array

Platform:

GPL4652

30 Samples

Download data: CEL

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Sinorhizobium meliloti; Medicago sativa; Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL4652

60 Samples

Download data: CEL

(Submitter supplied) Legumes interact with soil fungi, leading to the development of arbuscular mycorrhizal (AM) roots. Diffusible AM fungal signals were identified as sulphated and non-sulphated LCOs (sMyc-LCOs and nsMyc-LCOs). Applying Myc-LCOs on roots of symbiotic mutants, we used GeneChips to detail the global programme of gene expression in these mutants in response to the external application of Myc-LCOs.

Organism:

Medicago sativa; Medicago truncatula; Sinorhizobium meliloti

Type:

Expression profiling by array

Platform:

GPL4652

24 Samples

Download data: CEL

(Submitter supplied) Legumes interact with soil microbes, leading to the development of nitrogen-fixing root nodules and arbuscular mycorrhizal (AM) roots. While nodule initiation by diffusible lipochitooligosaccharide (LCO) Nod-factors of bacterial origin (Nod-LCOs) is well characterized, diffusible AM fungal signals were only recently identified as sulphated and non-sulphated LCOs (sMyc-LCOs and nsMyc-LCOs). Applying Myc-LCOs in parallel to Nod-LCOs, we used GeneChips to detail the global programme of gene expression in response to the external application of symbiotic LCOs.

Organism:

Medicago sativa; Medicago truncatula; Sinorhizobium meliloti

Type:

Expression profiling by array

Platform:

GPL4652

36 Samples

Download data: CEL

(Submitter supplied) Purpose: The recent publication of the fungal mutualist R. irregularis genome facilitated transcriptomic studies. We here wanted to understand the large host range of this fungus, throught its gene regulation in divergent plants Methods: mRNA from Medicago truncatula (legume), Brachypodium distachyon (grass) and Lunularia cruciata (liverwort) in association with R. irregularis were sequenced. Reads were mapped on the genome assembly with the software CLC workbench. more...

Organism:

Brachypodium distachyon; Lunularia cruciata; Medicago truncatula; Rhizophagus irregularis

Type:

Expression profiling by high throughput sequencing

4 related Platforms

12 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Rhizophagus intraradices; Gigaspora gigantea; Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL4059

18 Samples

Download data

(Submitter supplied) Most vascular flowering plants have the ability to form mutualistic associations with soil fungi from the Glomeromycota. The resulting symbiosis is called an arbuscular mycorrhiza and they are widespread in terrestrial ecosystems throughout the world. Although the physical interaction between the symbionts occurs in the root cortex, the symbiosis impacts the physiology of the whole plant. To gain a better understanding of the AM symbiosis, we have used the 16000 feature array to examine gene expression in the leaves of mycorrhizal plants to explore the transcriptional changes that are triggered systemically as a result of the AM symbiosis. more...

Organism:

Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL4059

6 Samples

Download data

(Submitter supplied) Most vascular flowering plants have the ability to form mutualistic associations with soil fungi from the Glomeromycota. The resulting symbiosis is called an arbuscular mycorrhiza and they are widespread in terrestrial ecosystems throughout the world. Significant alteration occurs at physiological and molecular levels in both symbionts. To gain a better understanding of the AM symbiosis, we use a 16000 feature oligonucleotide based array to examine gene expression in an arbuscular mycorrhizal symbioses, M. more...

Organism:

Gigaspora gigantea; Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL4059

6 Samples

Download data

(Submitter supplied) Most vascular flowering plants have the ability to form mutualistic associations with soil fungi from the Glomeromycota. The resulting symbiosis is called an arbuscular mycorrhiza and they are widespread in terrestrial ecosystems throughout the world. Significant alteration occurs at physiological and molecular levels in both symbionts. To gain a better understanding of the AM symbiosis, we use a 16000 feature oligonucleotide based array to examine gene expression in an arbuscular mycorrhizal symbioses, M. more...

Organism:

Medicago truncatula; Rhizophagus intraradices

Type:

Expression profiling by array

Platform:

GPL4059

6 Samples

Download data

(Submitter supplied) The Medicago Genome Oligo Set Version 1.0 (Qiagen Operon, Alameda, CA) includes 70-mer oligonucleotides representing 16,086 M. truncatula tentative consensus sequences (TCs) from The Institute of Genome Research (TIGR) Gene Index Database (www.tigr.org/tdb/tgi/mtgi/) MtGI Release 5.0 as well as both positive and negative controls. Details of this oligo set are available at http://oligos.qiagen.com/arrays/omad.php. more...

Organism:

Medicago truncatula

4 Series

18 Samples

Download data

(Submitter supplied) Arbuscular mycorrhizal (AM) associations enhance the phosphorous and nitrogen nutrition of host plants, but little is known about their role in potassium (K+) nutrition. Medicago truncatula plants were co-cultured with the AM fungus Rhizophagus irregularis under high and low K+ regimes for six weeks. We determined how K+ deprivation affects plant development, mineral acquisition, and how these negative effects are tempered by the AM colonization. more...

Organism:

Medicago truncatula

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17491

14 Samples

Download data: FPKM_TRACKING

(Submitter supplied) RNA-sequencing of Hordeum vulgare cv. Ingrid wild type and Hvmlo1-5 mutant in non-mycorrhizal (control) and mycorrhizal roots at 17 days post inoculation (dpi) and 26 dpi.

Organism:

Hordeum vulgare

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22077

24 Samples

Download data: TSV

(Submitter supplied) The autoregulation of mycorrhization (AOM) describes a plant regulatory mechanism that limits the number of infection events by arbuscular mycorrhizal fungi. The key signal mediator is a receptor kinase (GmNARK) that acts in the shoots. Early signals of the mycorrhizal symbiosis induce a root-derived signal that activates GmNARK in the shoot finally leading to a systemic repression of subsequent infections in the root. more...

Organism:

Glycine max

Type:

Expression profiling by array

Platform:

GPL4592

30 Samples

Download data: CEL

(Submitter supplied) We analyzed the impact of different phosphate levels on the regulation of plant and fungal transcriptomes.

Organism:

Sorghum bicolor; Populus trichocarpa; Rhizophagus irregularis

Type:

Expression profiling by high throughput sequencing

5 related Platforms

27 Samples

Download data: CSV, TXT

(Submitter supplied) In this work we aimed to get a first overview on S-stress responses in leaf and root tissues of mycorrhized and non mycorrhized plants. Several hundred genes showed a significant different transcript accumulation. Their annotation and GO ID association allowed us to investigate the our data in order to identify biological processes and molecular functions preferentially affected, and to better understand in which terms the symbiotic relation avoid the plant to face deleterious S-deficiency effects.

Organism:

Medicago truncatula

Type:

Expression profiling by array

Platform:

GPL19188

42 Samples

Download data: PAIR

(Submitter supplied) Key genes involved in symbiosis have been lost in nonmycorrhizal plants such as Arabidopsis thaliana. We studied the effects on gene expression in A. thaliana expressing an abbreviated, functional version of one of genes, the transcription factor Interacting Protein of DMI3 (IPD3-min), under low nutrient conditions in the presence and absence of a mycorrhizal fungi, Rhizophagus. We conducted the same transcriptome analysis with a cyclops-4 knockout mutant in Lotus japonicus to compare with the expression profile of a mycorrhizal host model lacking IPD3.

Organism:

Arabidopsis thaliana; Lotus japonicus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL33123 GPL28290

44 Samples

Download data: TXT