Dataset Information

Analysis of Erysiphe pisi proteome

ABSTRACT: Erysiphe pisi causes powdery mildew disease in garden pea. It is a biotrophic ascomycete member necessitating a living host for its survival. An attempt to identify the global proteome of E. pisi pathogen is made using a sensitive and reliable nano LC-MS/MS approach. The protein profiling of two isolates of E. pisi; Ep01 and Ep02 varying for virulence upon testing on a commercial cultivar, Arkel led to the detection of a total of 211 and 214 distinct proteins in Ep01 and Ep03 isolates respectively. In addition, a total of 203 and 207proteins from Ep01 and Ep03 isolates respectively were found to be hypothetical or proteins with not yet predicted functions based on GO (biological process). The protein accessions detected in these isolates were categorized into functional protein classes with some of the identified proteins reported to be involved in pathogenesis or virulence. The proteins belonging to the functional classes like stress related, signal transduction and secondary metabolite formation might be involved in virulence and pathogenesis. The proteome proposed in this study would serve as a reference proteome to facilitate the understanding of the functional aspects of an obligate biotrophic fungal pathogen.

INSTRUMENT(S): LTQ Orbitrap Discovery

ORGANISM(S): Erysiphe Pisi

TISSUE(S): Fungal Asexual Spore, Mycelium

DISEASE(S): Fungal Infectious Disease

SUBMITTER: Ragiba Makandar

LAB HEAD: Prof. Ragiba Makandar

PROVIDER: PXD010238 | Pride | 2019-04-02

REPOSITORIES: Pride

ACCESS DATA

Dataset's files

Source:

Items per page:

1 - 5 of 24

Publications

Shotgun proteomics provides an insight into pathogenesis-related proteins using anamorphic stage of the biotroph, Erysiphe pisi pathogen of garden pea.

Bheri Malathi M M Bhosle Sheetal S Makandar Ragiba R

Microbiological research 20190212

E. pisi is an ascomycete member causing powdery mildew disease of garden pea. It is a biotrophic pathogen, requiring a living host for its survival. Our understanding of molecular mechanisms underlying its pathogenesis is limited. The identification of proteins expressed in the pathogen is required to gain an insight into the functional mechanisms of an obligate biotrophic fungal pathogen. In this study, the proteome of the anamorphic stage of E. pisi pathogen has been elucidated through the nan ...[more]

PMID: 30928027

Similar Datasets

Project description:Livestock-associated (LA) methicillin-resistant Staphylococcus aureus (MRSA) and strains of sequence type 398 (ST398), which first became known for its widespread colonization of pigs but are now also rapidly emerging in the number of human colonization and infections. The ability of broad host adaption in combination with a consciously evolves by acquisition of virulence gene or mobile genetic elements (MGE) have been increasingly addressed ST398 lineage a serious threat to public health. The present study was aimed to track out how the diverse ST398 lineage, which colonized or infected in a broad range of reservoirs and various geographic regions, is actually reflected in the course of virulence evolution. We therefore profiled the extracellular proteome, representing the main reservoir of virulence factors, of 30 representative clinical isolates using label-free quantitative mass spectrometry. The results show that these isolates can be divided into five distinct clusters based on their exoproteome identities and abundance signatures. The majority of proteins identified were predicted as cytoplasmic proteins showing substantial heterogeneity among our 30 investigated isolates. Only 50% of isolates their exoproteome clustering of isolates can be correlated the clustering based on genome sequences suggested that the large-scale extend of genotype changes over time. To assess the virulence and cytotoxicity of the 30 investigated isolates, we employed infection models based on Galleria mellonella and HeLa cells. The results uncovered the grouping of clinical isolates based on their virulence or cytotoxicity have apparently distinctive exoproteome signatures and particular exoproteins could play decisive roles in pathogenicity of this specific S. aureus lineage. Altogether, the combination of exoproteome and virulence analysis contribute to the comprehensive insights for the impact of genome diversity on the global production of virulence factors of this zoonotic lineage, and more importantly, our outcomes as well as our approach provided an effective pipeline to define proteomic signatures of S. aureus virulence.

Project description:Yunnan Province, China is thought to be the original source of biovar Orientalis of Yersinia pestis, the causative agent of the third plague pandemic that has spread globally since the end of the 19th century. Although encompassing a large area of natural plague foci, Y. pestis strains have rarely been found in live rodents during surveillance in Yunnan, and most isolates are from rodent corpses and their fleas. In 2017, 10 Y. pestis strains were isolated from seven live rodents and three fleas in Heqing County (HQ) of Yunnan. These strains were supposed to have low virulence to local rodents Eothenomys miletus and Apodemus chevrieri because the rodents were healthy and no dead animals were found in surrounding areas, as had occurred in previous epizootic disease. We performed microscopic and biochemical examinations of the isolates,and compared their whole-genome sequences and transcriptome with those of 10 high virulence Y. pestis strains that were isolated from the adjacent city (Lijiang). We analyzed the phenotypic, genomic, and transcriptomic characteristics of live rodent isolates. The isolates formed a previously undefined monophyletic branch of Y. pestis that was named 1.IN5. Six SNPs, two indels, and one copy number variation were detected between live rodent isolates and the high virulence neighbors. No obvious functional consequence of these variations was found according to the known annotation information. Among the genes that were differentially expressed between the live rodent isolates and their high virulence neighbors, we detected five iron transfer-related genes that were significantly up-regulated in live rodent isolates compared with high virulence isolates (|log2 (FC) | >1, p.adjust <0.05), indicating these genes may be related to the low-virulence phenotype. The novel genotype of Y. pestis reported here provides further insights into the evolution and spread of plague as well as clues that may help to decipher the virulence mechanism of this notorious pathogen.

			Action	DRS
	Ep01-B3a.RAW	Raw
	Ep01-B3a.dat	Other
	Ep01-B3a.mzid.gz	Mzid
	Ep01-B3a.pride.mztab.gz	Mztab
	Ep01-B4.RAW	Raw