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Gene expression in Arabidopsis thaliana leaves after chilling and/or herbivory by Pieris brassicae or Mamestra brassice larvae or after mechanical wounding

ABSTRACT: Gene expression in Arabidopsis thaliana leaves after chilling and/or herbivory by Pieris brassicae or Mamestra brassice larvae or after mechanical wounding

PROVIDER: PRJNA470583 | ENA |

REPOSITORIES: ENA

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Gene expression in Arabidopsis thaliana leaves after chilling and/or herbivory by Pieris brassicae or Mamestra brassice larvae or after mechanical wounding

Project description:To investigate the impact of a plant´s response to abiotic stress on plant defense against subsequent biotic stress, we determined the transcriptional response of Arabidopsis thaliana to low temperature stress (4°C) and subsequent mechanical wounding or larval feeding damage by the herbivores Mamestra brassicae (generalist) and Pieris brassicae (specialist). In total, 21%, 4% and 14% of all genes responsive to M. brassicae, P. brassicae or mechanical wounding were differentially regulated in previously cold-treated compared to untreated plants.

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Gene expression in Arabidopsis leaves after P. brassicae egg deposition, chilling, and/or herbivory by P. brassicae larvae

2016-06-23 | GSE69623 | GEO

Gene expression in Arabidopsis leaves after P. brassicae egg deposition, chilling, and/or herbivory by P. brassicae larvae

Project description:Plant defence against insects is well known to be affected by previous exposure to cues warning of herbivory. Using Arabidopsis thaliana and the herbivore Pieris brassicae, we addressed the question whether the maintenance of the effects of the warning cue depends on its reliability. We determined the transcriptomes of Arabidopsis leaves that were treated by P. brassicae egg deposition (i) five days after oviposition, (ii) one day after removal of the eggs following the egg treatment, (iii) three days after removal of the eggs, (iv) after two days of herbivory that started one day after removal of the eggs; or that were treated by chilling (v) five days after transfer to 4Â°C, (vi) one day after transfering the plants to 20Â°C following the chilling treatment, (vii) three days after transfering the plants to 20Â°C, (viii) after two days of herbivory that started one day after transfering the plants to 20Â°C. Arabidopsis thaliana Col-0 wild type plants were grown under short day conditions (10 h/14 h light/dark) at 20Â°C for 7 weeks. Subsequently (i) the plants were transferred to 4Â°C for 5 days, or (ii) Pieris brassicae deposited ca. 40 eggs on leaf 17 where they remained for five days, or (iii) as controls plants grew untreated for five days. Next, the plants were transferred back to 20Â°C and the eggs were removed, respectively. Next, all plants rested for 1 day at 20Â°C. Next, P. brassicae larvae were allowed to feed for 2 days on leaf 17 adjacent to the former egg deposit site or at a respective leaf region of chilling-treated or untreated plants. Control plants were not exposed to larvae. From all treated and untreated plants material from a leaf region proximal to the egg deposition and/or feeding site was harvested for transcriptome analysis.

2016-06-23 | E-GEOD-69623 | biostudies-arrayexpress

Mamestra brassicae

Project description:Mamestra brassicae overview

| PRJNA693957 | ENA

Mamestra brassicae

Project description:Mamestra brassicae Transcriptome or Gene expression

| PRJNA543970 | ENA

Gene expression in Arabidopsis leaves after P. brassicae egg deposition and/or herbivory by P. brassicae larvae

Project description:Plants can prepare their defense of impending herbivory, when they previously perceived eggs deposited by herbivores insect which reliably indicates that larvae will soon hatch and feed on the plants. Using Arabidopsis thaliana and Pieris brassicae we addressed the question whether prior egg deposition affects transcriptional changes in feeding-damaged plants. We determined the transcriptomes of Arabidopsis leaves that (i) were for six days deposited with eggs and suffered larval feeding for two days, (ii) suffered larval feeding for two days without prior egg deposition or (iii) were left untreated.

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Pieris brassicae

Project description:Pieris brassicae overview

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Brassica nigra challenged by Pieris brassicae, eggs of Pieris brassicae, Xanthomonas campestris pv. raphani, Brevicoryne brassicae or by combined stresses eggs of P. brassicae / P. brassicae, X. campestris / P. brassicae, B. brassicae / P. brassicae

Project description:Brassica nigra plants, a Brassicaceae close to Arabidopsis thaliana, was used for combined stresses experiments. In this study, we performed a whole-genome microarray analysis on five-week-old plants and compared untreated plants and plants treated different single or dual stresses: the larvae Pieris brassicae, egg extract of Pieris brassicae, the bacterial Xanthomonas campestris pv. raphani, the aphid Brevicoryne brassicae or by combined stresses eggs of P. brassicae / P. brassicae, X. campestris / P. brassicae, B. brassicae / P. brassicae.

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Project description:Sequences of DOP-PCR products in Pieris brassicae

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