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MRNA-seq of Brachypodium distachyon roots inoculated with Serendipita indica (syn. Piriformospora indica)

ABSTRACT: We sequenced mRNA and small RNA (sRNA) profiles in the interaction between Brachypodium distachyon (Bd) and Serendipita indica (Si; syn. Piriformospora indica), at four (4) days post inoculation (DPI). mRNA sequencing reads of Si-colonized and non-colonized roots, as well as axenic fungal cultures were generated. Three biological samples of each were sequenced, with two technical replicates per sample (PE).

INSTRUMENT(S): Illumina HiSeq 1500

ORGANISM(S): Serendipita indica

SUBMITTER: Karl-Heinz Kogel

PROVIDER: E-MTAB-10649 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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sRNA-seq of Brachypodium distachyon roots inoculated with Serendipita indica (syn. Piriformospora indica)

Project description:We sequenced mRNA and small RNA (sRNA) profiles in the interaction between Brachypodium distachyon (Bd) and Serendipita indica (Si; syn. Piriformospora indica), at four (4) days post inoculation (DPI). sRNA sequencing reads of Si-colonized and non-colonized roots, as well as axenic fungal cultures were generated. Three biological samples of each were sequenced, with two technical replicates per sample (SE). Raw reads from sRNA sequencing were submitted to technical adapter trimming (Cutadapt) before upload.

2021-07-15 | E-MTAB-10650 | biostudies-arrayexpress

Transcriptional profiling of Piriformospora indica colonizing living and dead barley roots

Project description:Recent sequencing projects have provided deep insight into fungal lifestyle-associated genomic adaptations. Here we report on the 25 Mb genome of the mutualistic root symbiont Piriformospora indica (Sebacinales, Basidiomycota) and provide a global characterization of fungal transcriptional responses associated with the colonization of living and dead roots. Extensive comparative analysis of the P. indica genome with other Basidiomycota and Ascomycota fungi that have diverse lifestyles strategies identified features typically associated with both, biotrophism and saprotrophism. The tightly controlled expression of the lifestyle-associated gene sets during the onset of the symbiosis, revealed by microarrays analysis, argues for a biphasic root colonization strategy of P. indica. Our finding provides a significant advance in understanding development of biotrophic plant symbionts and suggests a series of incremental shifts along the continuum from saprotrophy towards biotrophy in the evolution of mycorrhizal association from decomposer fungi. P. indica (DSM 11827, DSMZ) was cultivated on complex medium agar plates or liquid medium as described before (Zuccaro et al., 2009). Barley seeds (Hordeum vulgare L. cv. Golden Promise) were surface sterilized with 3 % sodium hypochlorite, rinsed in water and pregerminated for 3 days. To address the experimental design four different treatments were done (P. indica on barley roots on 1/10 PNM medium, P. indica on autoclaved barley roots on 1/10 PNM medium, P. indica on 1/10 PNM medium and P. indica on CM medium), each in three independent biological replications. Root and fungal material was harvested in liquid nitrogen after 24, 36, 48, 72, 120 and 168 hpi. For each time point roots from 15 to 20 living plants or 21 to 36 autoclaved plants were pooled.

2011-09-30 | E-GEOD-31266 | biostudies-arrayexpress

Piriformospora indica on Arabidopsis and barley root material

Project description:Broad-host root endophytes establish long-term interactions with a large variety of plants, thereby playing a significant role in natural and managed ecosystems and in evolution of land plants. To exploit plants as living substrates and to establish a compatible interaction with morphologically and biochemically extremely different hosts, endophytes must respond and adapt to different plant signals and host metabolic states. Here we identified host-adapted colonization strategies and host-specific effector candidates of the mutualistic root endophyte Piriformospora indica by a global investigation of fungal transcriptional responses to barley and Arabidopsis at different symbiotic stages. Additionally we examined the role played by nitrogen in these two diverse associations. Cytological studies and colonization analyses of a barley mutant and fungal RNAi strains show that distinct physiological and metabolic signals regulate host-specific lifestyle in P. indica. This is the foundation for exploring how distinct fungal and host symbiosis determinants modulate biotrophy in one host and saprotrophy in another host and, ultimately, gives hints into the mechanisms underlying host adaptation in root symbioses. Arabidopsis and barley roots were inoculated with Piriformospora indica and grown for 14 days. Additionally P. indica was grown on 1/10 PNM medium alone. Samples were taken 3 and 14 dpi (Arabidopsis), 14 dpi (barley) and 3dpi (1/10 PNM). Each experiment was performed in three independent biological repetitions. Piriformospora indica gene expression examined only.

2013-07-22 | E-GEOD-47775 | biostudies-arrayexpress

Piriformospora indica primes barley for systemic resistance against powdery mildew

Project description:Colonization of barley roots with the basidiomycete fungus Piriformospora indica enhances resistance against the leaf pathogen Blumeria graminis f.sp. hordei (Bgh). To identify genes involved in this mycorrhiza-induced systemic resistance, we used the Affymetrix Barley1 22K gene chip for leaf transcriptome analysis of P. indica-colonized and non-colonized barley plants 12, 24 and 96 hours post inoculation (hpi) with a compatible Bgh strain.

2011-10-06 | E-MEXP-3389 | biostudies-arrayexpress

Transcriptome and Proteomic Analysis of Mango (Mangifera indica Linn) Fruits

Project description:Transcriptome and Proteomic Analysis of Mango (Mangifera indica Linn) Fruits

2015-02-20 | PXD000808 | Pride

Expression data from Arabidopsis thaliana root and piriformaspora indica during log and short term interaction

Project description:Piriformospora indica, an endophytic fungus of Sebacinales, colonizes the roots of many plant species including Arabidopsis thaliana. The symbiotic interaction promotes plant per-formance, growth and resistance/tolerance against abiotic and biotic stress. We demonstrate that exudated compounds from the fungus activate stress and defense responses in the Arabidopsis roots and shoots before the two partners are in physical contact. They induce stomata closure, stimulate reactive oxygen species (ROS) production, stress-related phytohormone accumulation and activate defense and stress genes in the roots and/or shoots. Once a physical contact is established, the stomata re-open, ROS and phytohormone levels decline, and the gene expression pattern indicates a shift from defense to mutualistic interaction. We propose that exudated compounds from P. indica induce stress and defense responses in the host. Root colonization results in the downregulation of defense responses and the activation of genes involved in promoting plant growth, metabolism and performance. Twelve day-old (48 h cold treatment and 10 days of illumination) Arabidopsis seedlings of equal sizes were selected for co-cultivation experiments. They were transferred to PNM plates with a nylone membrane on the top (Johnson et al. 2011) and exposed to a fungal plug 5 mm in diameter or a KM plug of the same size without fungal hyphae (control). The plugs were placed 3 cm away from the closest root part . The light intensity (80 Â± 5 Î¼mol m-2 sec-1) was checked every third day to ensure that both P. indica- and mock-treated seedlings receive equal amounts of light.

2016-05-30 | E-GEOD-58771 | biostudies-arrayexpress

Barley root gene expression during colonisation by Piriformospora indica

Project description:The fungal mutualist Piriformospora indica is colonising barley roots thereby mediating various beneficial effects to its host. The interaction is characterised by an initial biotrophic interaction stage which is followed by a cell death-dependent colonisation phase. We used microarrays to identify the global programme of gene expression during the colonisation process of barley roots by P. indica and to obtain informations into plant defense and metabolic reprogramming. In three independent experiments plants were inoculated with Piriformospora indica. Samples from inoculated roots were taken at 1, 3, and 7 days after inoculation. Samples from uninfected control plants were taken at the same time points.

2010-05-19 | E-GEOD-13756 | biostudies-arrayexpress

Gene expression profiles in HepG2 cells treated with the methanol leaf extract of Tamarindus indica (T. indica)

Project description:The leaf extract of T. indica had been reported to posses high phenolic content and showed high antioxidant activities. However, scientific data on the molecular mechanisms underlying the beneficial properties of the leaf extract are still lacking. In this study, the effects of the leaf extract on the expression of genes in cultured HepG2 cells were investigated using microarray technology. The leaf extract significantly regulated the expression of genes involved with consequential impact on the coagulation system, cholesterol biosynthesis, xenobiotic metabolism signaling and antimicrobial response. HepG2 cells were seeded and treated with an IC20 concentration of the methanol leaf extract of T. indica for 24 h. Following this, cells were trypsinized and then preciptated by centrifugation. Cells were washed with phosphate buffer saline (PBS) before total cellular RNA (tcRNA) were extracted from the cells. tcRNA from both untreated and T. indica leaf-treated HepG2 cells were selected for RNA extraction and hybridization on Affymetrix microarrays. All experiments were done in triplicate. The microarray analysis was performed on Affymetrix Human Gene 1.0 S.T Array according to the manufacturer's protocol. The gene sets were then subjected to analysis of variance (ANOVA) in the Partek Genomics Suite software to determine significantly expressed genes which was set according to P value less than 0.05 and fold change difference of equal to or greater than 1.5.

2015-08-01 | E-GEOD-71606 | biostudies-arrayexpress

Salt stress in salt sensitive Oryza sativa Indica group IR29

Project description:Oryza sativa Indica group IR29 (salt sensitive) seedlings were subjected to salt stress or control conditions and sampled at five time points over the course of 24 hours. RNA samples extracted were assayed using the Illumina HiSeq 2000 platform.

2017-10-02 | E-MTAB-1913 | biostudies-arrayexpress

Salt stress in salt sensitive Oryza sativa Indica group Pokkali (salt sensitive)

Project description:Oryza sativa Indica group Pokkali (salt sensitive) seedlings were subjected to salt stress or control conditions and sampled at five time points over the course of 4 hours. RNA samples extracted were assayed using the Illumina HiSeq 2000 platform.

2020-01-01 | E-MTAB-1914 | biostudies-arrayexpress

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