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ABSTRACT: Pea root mycobiomes

PROVIDER: PRJNA526546 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8719000_1.fastq.gz	Fastqsanger.gz
	SRR8719000_2.fastq.gz	Fastqsanger.gz
	SRR8719010_1.fastq.gz	Fastqsanger.gz
	SRR8719010_2.fastq.gz	Fastqsanger.gz
	SRR8719020_1.fastq.gz	Fastqsanger.gz

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Responsivity of two pea genotypes to the symbiosis with rhizobia and arbuscular mycorrhiza fungi – a proteomics aspect of the “Efficiency of Interactions with Beneficial Soil Microoganisms” trait

Project description:It is well-known that individual pea (Pisum sativum L.) cultivars differ in their symbiotic responsivity. This trait is typically manifested with an increase in seed weights due to inoculation with rhizobial bacteria and arbuscular mycorrhizal fungi. The aim of this work was to characterize the alterations in root proteome of highly responsive pea genotype k-8274 and low-responsive genotype k-3358 grown in non-sterile soil, which were associated with root colonization with rhizobial bacteria and arbuscular mycorrhiza fungi in comparison to proteome shifts caused by soil supplementation with mineral nitrogen salts. Our results clearly indicate that supplementation of the soil with mineral nitrogen-containing salts switched the root proteome of both genotypes to assimilation of the available nitrogen, whereas the processes associated with nitrogen fixation were suppressed. Surprisingly, inoculation with rhizobial bacteria had only a minor effect on root proteomes of the both genotypes. The most pronounced response was observed for highly responsive k-8274 genotype inoculated simultaneously with rhizobial bacteria and arbuscular mycorrhizal fungi. This response involved activation of the proteins related to redox metabolism and suppression of excessive nodule formation. In turn, the low-responsive genotype k-3358 demonstrated a pronounced inoculation-induced suppression of protein metabolism and enhanced diverse defense reactions in pea roots under the same soil conditions. The results of the study shed light on the molecular basis of differential symbiotic responsivity in different pea cultivars.

2025-02-24 | PXD058701 | Pride

Transcriptomic response to concentrated pea root exudate

Project description:The secretion of metabolites by plant roots is a key determinant of microbial growth and colonisation. We have used Pisum sativum and its natural symbiont Rhizobium leguminosarum (it can form N2 fixing nodules on pea roots) to study the natural metabolites secreted by roots. To do this root secretion was harvested from pea plants grown under sterile conditions. This root exudate was then concentrated and used as a sole carbon and nitrogen source for growth of the bacteria in the laboratory. These bacteria were harvested in mid-exponential growth and RNA extracted for microarray analysis. As control cultures the bacteria were grown on 30 mM pyruvate as a carbon source and 10 mM ammonium chloride as a nitrogen source and RNA extracted. Two colour microarrays were performed using root exudate cultures versus pyruvate ammonia grown cultures. This was done in biological triplicate.

2016-05-25 | E-MTAB-4790 | biostudies-arrayexpress

Transcription profiling by array of Rhizobium leguminosarum bivar viciae strain Rlv3841 grown on pyruvate ammonia AMS with the addition of pea root washing

Project description:Rhizobium leguminosarum bivar viciae strain Rlv3841 was grown in the laboratory on pyruvate (10mM) ammonia (10mM) AMS. The effect of addition of pea root washing was compared to an untreated control.

2010-10-02 | E-MEXP-2846 | biostudies-arrayexpress

Project description:Pea seedling root transcriptome data

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Comparative transcriptomic analyses of vegetable and grain pea (Pisum sativum L.) seed development

Project description:Pea (Pisum. sativum L.) is a traditional and important edible legume that can be sorted into grain pea and vegetable pea according to their harvested maturely or not. Vegetable pea by eating the fresh seed is becoming more and more popular in recent years. These two type peas display huge variations of the taste and nutrition, but how seed development and nutrition accumulation of grain pea and vegetable pea and their differences at the molecular level remains poorly understood. To understand the genes and gene networks regulate seed development in grain pea and vegetable pea, high throughput RNA-Seq and bioinformatics analysis were used to compare the transcriptomes of vegetable pea and grain pea developing seed. RNA-Seq generated 18.7 G raw data, which was then de novo assembled into 77,273 unigenes with a mean length of 930 bp. Functional annotation of the unigenes was carried out using the nr, Swiss-Prot, COG, GO and KEGG databases. There were 459 and 801 genes showing differentially expressed between vegetable pea and grain pea at early and late seed maturation phases, respectively. Sugar and starch metabolism related genes were dramatically activated during pea seed development. The up-regulated of starch biosynthesis genes could explain the increment of starch content in grain pea then vegetable pea; while up-regulation of sugar metabolism related genes in vegetable pea then grain pea should participate in sugar accumulation and associated with the increase in sweetness of vegetable pea then grain pea. Furthermore, transcription factors were implicated in the seed development regulation in grain pea and vegetable pea. Thus, our results constitute a foundation in support of future efforts for understanding the underlying mechanism that control pea seed development and also serve as a valuable resource for improved pea breeding.

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Proteomic screening for potentially amyloidogenic proteins of Rhizobium leguminosarum in effective and ineffective root nodules of Pisum sativum L.

Project description:We studied potentially amyloidogenic proteins (e.g. protein forming polymers and complexes that are resistant to treatment with ionic detergents) in root nodules formed by two lines of garden pea (P. sativum L.): Sprint-2 (Fix+ phenotype) and Sprint-2Fix- (sym31) (Fix- phenotype) inoculated with the Rhizobium leguminosarum bv. viciae RCAM1026 root nodule bacteria. The Fix+ phenotype is characterized by effective (ability to fix nitrogen) root nodules formation. The Fix- line is a descendant of the Fix+ line and forms ineffective root nodules (unable to fix nitrogen) with undifferentiated bacteroids. We demonstrated the presence of both plant and bacterial proteins in detergent resistant fractions, including previously identified amyloid proteins RopA and RopB of R. leguminosarum and vicilin of P. sativum L.

2022-10-25 | PXD035724 | Pride

Transcriptional changes of the extracellular matrix in chronic thromboembolic pulmonary hypertension governs right ventricle remodeling and recovery [ext327_rnaseq]

Project description:The present prospective study included a total number of 3 patients with a final diagnosis of chronic thromboembolic pulmonary hypertension (CTEPH), who were treated by pulmonary endarterectomy (PEA) at the Kerckhoff Heart and Thorax Center between 2016 and 2020. Biopsies of the myocardial interventricular septum from 3 patients were collected at baseline (BL) before PEA surgery (pre-septal-PEA) In this case, to account for technical and safety aspects, the specimens were taken from the myocardial interventricular septum. The aim of the Study was a comparative characterization of RNA-profiles of septum in CTEPH patients after PEA surgery (postPEA) compared to before PEA surgery (pre-septal-PEA).

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