Nicotiana tabacum
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA136777 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Polygalacturonase-inhibiting proteins (PGIPs) in plant cell walls inhibit fungal endopolygalacturonases (ePGs). Their action directly limits the effective ingress of the pathogen and is thought to lead to an up-regulated defense response. We previously showed that, PGIP activity, ePG inhibition and decreased Botrytis cinerea susceptibility were correlated in tobacco plants over-expressing grapevine (Vitis vinifera) Vvpgip1. In order to evaluate the base-line impact of PGIP over-expression, the transcriptome and hormone profiles of two transgenic lines with characterized resistance phenotypes were investigated in the absence of pathogen infection.
2011-12-08 | GSE26324 | GEO
Project description:Polygalacturonase-inhibiting proteins (PGIPs) in plant cell walls inhibit fungal endopolygalacturonases (ePGs). Their action directly limits the effective ingress of the pathogen and is thought to lead to an up-regulated defense response. We previously showed that, PGIP activity, ePG inhibition and decreased Botrytis cinerea susceptibility were correlated in tobacco plants over-expressing grapevine (Vitis vinifera) Vvpgip1. In order to evaluate the base-line impact of PGIP over-expression, the transcriptome and hormone profiles of two transgenic lines with characterized resistance phenotypes were investigated in the absence of pathogen infection. Three microarray slides in total were hybridized: two slides using Vvpgip1 line 37 and WT, with a dye swap included to account for dye bias; and one slide using Vvpgip1 line 45 as test and WT as reference.
2011-12-08 | E-GEOD-26324 | biostudies-arrayexpress
Project description:RNA-seq analysis on wild-type and SgRVE6 over-expressing transgenic tobacco
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Project description:Transgenic tobacco (Nicotiana tabacum) expressing Caenorhabditis elegans cell death genes, Ced4 and Ced3, show evidence suggesting such expressions protect the plants from infestation by the plant parasitic nematode Meloidogyne incognita. Although positive results have been correlated with the gene expressions (data in preparation for publication; a draft of the publication can be provided upon request), the mechanism by which the nematode protection is manifested is not clearly understood. One possibility is that the C. elegans cell death proteins produced by the transgenic plants are being ingested and incorporated into the nematode’s own cell death pathway, leading to their demise. Alternatively, it is also possible that expression of the C. elegans cell death genes promotes the endogenous resistance genes of the plant, leading to nematode resistance. We want to test the later hypothesis by conducting a reference design microarray experiment to establish the expression profile of Ced3, and Ced4 homozygous plants and Ced3xCed4 double heterozygous plants in comparison with wild-type tobacco plants. If the hypothesis is correct, we expect to detect increased expression of pathogenicity-related genes in the transgenic plants. Furthermore, characterization of the expression profiles in these transgenic plants will provide us directionality for our future research on the elucidation of this resistance mechanism. Keywords: Reference design
2007-09-01 | GSE8277 | GEO
Project description:Transgenic tobacco (Nicotiana tabacum) expressing Caenorhabditis elegans cell death genes, Ced4 and Ced3, show evidence suggesting such expressions protect the plants from infestation by the plant parasitic nematode Meloidogyne incognita. Although positive results have been correlated with the gene expressions (data in preparation for publication; a draft of the publication can be provided upon request), the mechanism by which the nematode protection is manifested is not clearly understood. One possibility is that the C. elegans cell death proteins produced by the transgenic plants are being ingested and incorporated into the nematode’s own cell death pathway, leading to their demise. Alternatively, it is also possible that expression of the C. elegans cell death genes promotes the endogenous resistance genes of the plant, leading to nematode resistance. We want to test the later hypothesis by conducting a reference design microarray experiment to establish the expression profile of Ced3, and Ced4 homozygous plants and Ced3xCed4 double heterozygous plants in comparison with wild-type tobacco plants. If the hypothesis is correct, we expect to detect increased expression of pathogenicity-related genes in the transgenic plants. Furthermore, characterization of the expression profiles in these transgenic plants will provide us directionality for our future research on the elucidation of this resistance mechanism. Keywords: Reference design 27 hybs total
2007-09-01 | E-GEOD-8277 | biostudies-arrayexpress
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