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Spider mite egg extract modifies Arabidopsis response to future infestations

ABSTRACT: Spider mite egg extract modifies Arabidopsis response to future infestations

PROVIDER: PRJNA714877 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13977103_1.fastq.gz	Fastqsanger.gz
	SRR13977103_2.fastq.gz	Fastqsanger.gz
	SRR13977104_1.fastq.gz	Fastqsanger.gz
	SRR13977104_2.fastq.gz	Fastqsanger.gz
	SRR13977105_1.fastq.gz	Fastqsanger.gz

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Spider mite egg extract modifies Arabidopsis response to future infestations

Project description:Transcriptional plant responses are specially under the scope on herbivore oviposition studies. However, most of the information comes from Lepidopteran models, where egg laying and feeding are separate events, and little is known regarding the plant reaction to those pests where females feed and oviposit simultaneously. The present study unveiled the oviposition-induced transcriptomic response of plants to Tetranychus urticae eggs. Transcriptional evidence indicated that the early events on the plant response to the egg extract involved ATP, Ca2+ and ROS disbalances. The main phytohormones triggered were JA and ET, with which also participated secondary metabolites, volatiles and glucosinolates as defence mechanisms. Many of the regulated genes are also involved during pathogen-defence mechanisms. Negative regulation of defence mechanisms happened at 72 h. Female fertility was significantly reduced when fed on plants pre-exposed to the eggs, while feeding increased on those plants pre-exposed for 72 h.

2021-09-15 | GSE168993 | GEO

Spider mite egg extract modifies Arabidopsis response to future infestations.

Project description:Transcriptional plant responses are an important aspect of herbivore oviposition studies. However, most of our current knowledge is derived from studies using Lepidopteran models, where egg-laying and feeding are separate events in time. Little is known regarding plant response to pests where females feed and oviposit simultaneously. The present study characterized oviposition-induced transcriptomic response of Arabidopsis to Tetranychus urticae egg extracts. Transcriptional evidence indicates that early events in plant response to the egg extract involve responses typical to biotic stresses, which include the alteration in the levels of Ca2+ and ROS, the modification of pathways regulated by the phytohormones jasmonic acid and ethylene, and the production of volatiles and glucosinolates as defence mechanisms. These molecular changes affect female fertility, which was significantly reduced when mites fed on plants pre-exposed to the egg extract. However, longer periods of plant exposure to egg extract cause changes in the transcriptional response of the plant reveal a trend to a decrease in the activation of the defensive response. This alteration correlated with a shift at 72 h of exposition in the effect of the mite feeding. At that point, plants become more susceptible and suffer higher damage when challenged by the mite.

| S-EPMC8421376 | biostudies-literature

Spirodiclofen resistance in the spider mite Tetranychus urticae

Project description:The goal of our microarray experiments was to compare the gene expression profile of two spirodiclofen resistant spider mite strains (SR-VP and SR-TK) with that of a susceptible spider mite strain (LS-VL)

2013-06-26 | GSE43538 | GEO

Barley transcriptional responses to specialist and generalist spider mite herbivores

Project description:Spider mites, including the two-spotted spider mite (Tetranychus urticae, TSSM) and the Banks grass mite (Oligonychus pratensis, BGM), are becoming increasingly important agricultural pests. The TSSM is an extreme generalist documented to feed on more than 1100 plant hosts. In contrast, the BGM is a grass specialist, with hosts including important cereal crops like maize, wheat, sorghum and barley. Historically, studies of plant-herbivore interactions have focused largely on insects. However, far less is known about plant responses to spider mite herbivores, especially in grasses, and whether responses differ between generalists and specialists. To identify plant defense pathways responding to spider mites, we collected time course RNA-seq data from barley (Hordeum vulgare L.) infested with TSSMs and BGMs. Additionally, and as a comparison to the physical damage caused by spider mite feeding, a wounding treatment was also included.

2016-06-24 | GSE83676 | GEO

Maize transcriptional responses to specialist and generalist spider mite herbivores

Project description:Spider mites, including the two-spotted spider mite (Tetranychus urticae, TSSM) and the Banks grass mite (Oligonychus pratensis, BGM), are becoming increasingly important agricultural pests. The TSSM is an extreme generalist documented to feed on more than 1100 plant hosts. In contrast, the BGM is a grass specialist, with hosts including important cereal crops like maize, wheat, and sorghum. Historically, studies of plant-herbivore interactions have focused largely on insects. As such, far less is known about plant responses to spider mite herbivores, especially in grasses, and whether responses differ between generalist and specialist mites. To identify plant defense pathways responding to spider mites, we collected time course RNA-seq data from maize (Zea mays) infested with TSSMs and BGMs. Additionally, and as a comparison to the physical damage caused by spider mite feeding, a wounding treatment was also included. In total, four biological samples were generated per treatment.

2017-06-17 | GSE100121 | GEO

Spirodiclofen resistance in the spider mite Tetranychus urticae

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spider mite Tetranychus truncatus sample

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spider mite Tetranychus truncatus samples

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Spider mite preliminary feeding experiment with mites reared on bean and two Arabidopsis thaliana accessions

Project description:We sequenced messenger RNA from mixed stages of the two-spotted spider mite (Tetranychus urticae) reared on bean (Phaseolus vulgaris cv California Red Kidney; the laboratory host plant for mites) and two Arabidopsis thaliana accessions which were considered to either be susceptible (Kondara) or resistant (Bla-2) to mite feeding. This pilot experiment was conducted to assess gene expression differences of mites grown on sensitive versus resistant Arabidopsis accessions, as well as differences in mites feeding on different host species. The expression data was used for gene model validation of genes predicted by EuGene in the spider mite genome and to assess gene expression levels. Examination of gene expression of spider mites reared on beans and two Arabidopsis accessions (Kondara and Bla-2).

2011-11-23 | E-GEOD-31525 | biostudies-arrayexpress

A link between host plant adaptation and pesticide resistance in the polyphagous spider mite Tetranychus urticae

Project description:The goal of our microarray experiments was twofold: 1) Compare the gene expression profile of acaricide resistant spider mite strains (MAR-AB and MR-VP) with that of a susceptible spider mite strain (London); 2) Study gene expression changes in spider mites from the London strain upon transfer from bean, a suitable host, to tomato, a less favorable host. These gene expression changes upon host change were measured for three timepoints (2 hour on tomato (Tomato-2h), 12 hour on tomato (Tomato-12h) and 5 generations on tomato (Tomato-5G)).

2012-12-04 | GSE39869 | GEO

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