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Beet leafhopper transmitted virescence phytoplasma

ABSTRACT: Beet leafhopper transmitted virescence phytoplasma overview

PROVIDER: PRJNA35671 | ENA |

REPOSITORIES: ENA

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Grapevine comparative early transcriptome profiling reveals that Flavescence dorée phytoplasma represses plant responses induced by vector feeding in susceptible varieties

Project description:Flavescence dorée is the most serious grapevine yellows disease in Europe. It is caused by phytoplasmas which are transmitted from grapevine to grapevine by the leafhopper Scaphoideus titanus. Differences in susceptibility among grapevine varieties suggest the existence of specific genetic features associated with resistance to the phytoplasma and/or possibly with its vector. In this work, RNA-Seq was used to compare early transcriptional changes occurring during the three-trophic interaction between the phytoplasma, its vector and the grapevine, represented by two different cultivars, one very susceptible to the disease and the other scarcely susceptible. Background: Flavescence dorée is the most serious grapevine yellows disease in Europe. It is caused by phytoplasmas which are transmitted from grapevine to grapevine by the leafhopper Scaphoideus titanus. Differences in susceptibility among grapevine varieties suggest the existence of specific genetic features associated with resistance to the phytoplasma and/or possibly with its vector. In this work, RNA-Seq was used to compare early transcriptional changes occurring during the three-trophic interaction between the phytoplasma, its vector and the grapevine, represented by two different cultivars, one very susceptible to the disease and the other scarcely susceptible. The comparison of the transcriptomic responses highlighted both passive and active defense mechanisms against the vector and/or the pathogen in the scarcely-susceptible variety, as well as the capacity of the phytoplasmas to repress the defense reaction against the insect in the susceptible variety.

2019-06-13 | E-MTAB-7710 | biostudies-arrayexpress

Beet leafhopper transmitted virescence phytoplasma

Project description:Mycoplasma-like plant pathogen

| PRJNA13618 | ENA

phytoplasma in plants vs. phytoplasma in insects (co-hybridizations)

Project description:Transcriptional profiling of phytoplasma grown in plant (Chrysanthemum coronarium) and grown in insect (Macrosteles striifrons). Two-condition experiment, phytoplasma-infected plant and phytoplasma-infected insect. Biological replicates: 6 phytoplasma-infected plants and 6 phytoplasma-infected insects, independently grown and harvested. One replicate per array.

2012-01-16 | E-GEOD-30302 | biostudies-arrayexpress

phytoplasma in plants vs. phytoplasma in insects (single hyb expts)

Project description:Transcriptional profiling of phytoplasma grown in plant (Chrysanthemum coronarium) and grown in insect (Macrosteles striifrons). Two-condition experiment, phytoplasma-infected plant and phytoplasma-infected insect. Biological replicates: 4 phytoplasma-infected plants and 4 phytoplasma-infected insects, independently grown and harvested. One replicate per array.

2012-01-16 | E-GEOD-29274 | biostudies-arrayexpress

phytoplasma in plants vs. phytoplasma in insects (co-hybridizations)

Project description:Transcriptional profiling of phytoplasma grown in plant (Chrysanthemum coronarium) and grown in insect (Macrosteles striifrons).

2012-01-16 | GSE30302 | GEO

phytoplasma in plants vs. phytoplasma in insects (single hyb expts)

Project description:Transcriptional profiling of phytoplasma grown in plant (Chrysanthemum coronarium) and grown in insect (Macrosteles striifrons).

2012-01-16 | GSE29274 | GEO

Comparative transcriptome analysis provides molecular insights into the interaction of Beet necrotic yellow vein virus and Beet soil-borne mosaic virus with their host sugar beet

Project description:Beet necrotic yellow vein virus (BNYVV) and Beet soil-borne mosaic virus (BSBMV) belong to the genus Benyvirus. Both viruses share a similar genome organization, but disease development induced in their major host plant sugar beet displays striking differences. BNYVV induces excessive lateral root (LR) formation by hijacking auxin-regulated pathways; whereas BSBMV infected roots appear asymptomatic. To elucidate transcriptomic changes associated with the virus-specific disease development of BNYVV and BSBMV, we performed a comparative transcriptome analysis of a virus infected susceptible sugar beet genotype.

2019-11-06 | E-MTAB-8187 | biostudies-arrayexpress

Phytoplasma-responsive small RNAs in Mexican lime trees

Project description:Background: Witches’ broom disease of Mexican lime (Citrus aurantifolia L.), which is caused by the phytoplasma “Candidatus Phytoplasma aurantifolia”, is a devastating disease that results in significant economic losses. Plants adapt to abiotic stresses by regulating gene expression at the transcriptional and post-transcriptional levels. MicroRNAs (miRNAs) are a recently identified family of molecules that regulate plant responses to environmental stresses through post-transcriptional gene silencing. Methods: Using a high-throughput approach to sequence small RNAs, we compared the expression profiles of miRNAs in healthy Mexican lime trees and in plants infected with “Ca. Phytoplasma aurantifolia”. Results: Our results demonstrated the involvement of different miRNAs in the response of Mexican lime trees to infection by “Ca. Phytoplasma aurantifolia”. We identified miRNA families that are expressed differentially upon infection with phytoplasmas. Most of the miRNAs had variants with small sequence variations (isomiRs), which are expressed differentially in response to pathogen infection. Conclusions: It is likely that the miRNAs that are expressed differentially in healthy and phytoplasma-infected Mexican lime trees are involved in coordinating the regulation of hormonal, nutritional, and stress signalling pathways, and the complex interactions between them. Future research to elucidate the roles of these miRNAs should improve our understanding of the level of diversity of specific plant responses to phytoplasmas.

2013-03-09 | GSE44279 | GEO

Candidatus Phytoplasma

Project description:Candidatus Phytoplasma overview

| PRJNA187009 | ENA

Transcriptional changes of phytoplasma under host switching between plant and insect

Project description:This SuperSeries is composed of the following subset Series: GSE29274: phytoplasma in plants vs. phytoplasma in insects (single hyb expts) GSE30302: phytoplasma in plants vs. phytoplasma in insects (co-hybridizations) Refer to individual Series

2012-01-16 | E-GEOD-30804 | biostudies-arrayexpress

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