Tetranychus urticae
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Plant-Herbivore Interaction: Dissection of the Cellular Pattern of Tetranychus urticae Feeding on the Host Plant Open
The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is one of the most polyphagous herbivores feeding on cell contents of over 1100 plant species including more than 150 crops. It is being established as a model f…
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Genome Sequencing of the Phytoseiid Predatory Mite<i>Metaseiulus occidentalis</i>Reveals Completely Atomized<i>Hox</i>Genes and Superdynamic Intron Evolution Open
Metaseiulus occidentalis is an eyeless phytoseiid predatory mite employed for the biological control of agricultural pests including spider mites. Despite appearances, these predator and prey mites are separated by some 400 Myr of evolutio…
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A review of the molecular mechanisms of acaricide resistance in mites and ticks Open
The Arachnida subclass of Acari comprises many harmful pests that threaten agriculture as well as animal health, including herbivorous spider mites, the bee parasite Varroa, the poultry mite Dermanyssus and several species of ticks. Especi…
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Conditioning the soil microbiome through plant–soil feedbacks suppresses an aboveground insect pest Open
Summary Soils and their microbiomes are now recognized as key components of plant health, but how to steer those microbiomes to obtain their beneficial functions is still unknown. Here, we assess whether plant–soil feedbacks can be applied…
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Disruption of a horizontally transferred phytoene desaturase abolishes carotenoid accumulation and diapause in<i>Tetranychus urticae</i> Open
Significance In animals, carotenoid pigments fulfill a number of essential roles in vision, protection from stresses, and signaling. Although carotenoids are synthesized primarily by plants and some bacteria and fungi, carotenoid biosynthe…
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The relative contribution of target-site mutations in complex acaricide resistant phenotypes as assessed by marker assisted backcrossing in Tetranychus urticae Open
The mechanisms underlying insecticide and acaricide resistance in insects and mites are often complex, including additive effects of target-site insensitivity, increased metabolism and transport. The extent to which target-site resistance …
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Beyond Predation: The Zoophytophagous Predator Macrolophus pygmaeus Induces Tomato Resistance against Spider Mites Open
Many predatory insects that prey on herbivores also feed on the plant, but it is unknown whether plants affect the performance of herbivores by responding to this phytophagy with defence induction. We investigate whether the prior presence…
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Plant Defenses Against Tetranychus urticae: Mind the Gaps Open
The molecular interactions between a pest and its host plant are the consequence of an evolutionary arms race based on the perception of the phytophagous arthropod by the plant and the different strategies adopted by the pest to overcome p…
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Enormous expansion of the chemosensory gene repertoire in the omnivorous German cockroach <i>Blattella germanica</i> Open
The acquisition of genome sequences from a wide range of insects and other arthropods has revealed a broad positive correlation between the complexity of their chemical ecology and the size of their chemosensory gene repertoire. The German…
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Evaluation of wild tomato accessions (Solanum spp.) for resistance to two-spotted spider mite (Tetranychus urticae Koch) based on trichome type and acylsugar content Open
Tomato wild relatives are important sources of resistance to many pests of cultivated tomato [Solanum lycopersicum L. (syn. Lycopersicon esculentum Mill.)]. Eleven wild tomato accessions previously identified at AVRDC—The World Vegetable C…
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Long-Term Population Studies Uncover the Genome Structure and Genetic Basis of Xenobiotic and Host Plant Adaptation in the Herbivore <i>Tetranychus urticae</i> Open
Pesticide resistance arises rapidly in arthropod herbivores, as can host plant adaptation, and both are significant problems in agriculture. These traits have been challenging to study as both are often polygenic and many arthropods are ge…
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Can Plant Defence Mechanisms Provide New Approaches for the Sustainable Control of the Two-Spotted Spider Mite Tetranychus urticae? Open
Tetranychus urticae (T. urticae) Koch is a cosmopolitan, polyphagous mite which causes economic losses in both agricultural and ornamental plants. Some traits of T. urticae hamper its management, including a short life cycle, arrhenotokous…
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Tomato Whole Genome Transcriptional Response to<i>Tetranychus urticae</i>Identifies Divergence of Spider Mite-Induced Responses Between Tomato and<i>Arabidopsis</i> Open
The two-spotted spider mite Tetranychus urticae is one of the most significant mite pests in agriculture, feeding on more than 1,100 plant hosts, including model plants Arabidopsis thaliana and tomato, Solanum lycopersicum. Here, we descri…
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The Beneficial Endophytic Fungus Fusariumsolani Strain K Alters Tomato Responses Against Spider Mites to the Benefit of the Plant Open
Beneficial microorganisms are known to promote plant growth and confer resistance to biotic and abiotic stressors. Soil-borne beneficial microbes in particular have shown potential in protecting plants against pathogens and herbivores via …
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RNAi-based reverse genetics in the chelicerate model Tetranychus urticae: A comparative analysis of five methods for gene silencing Open
RNA interference (RNAi) can be used for the protection against agricultural pests through the silencing of genes required for pest fitness. To assess the potential of RNAi approaches in the two-spotted spider mite, Tetranychus urticae, we …
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Plant-Herbivore Interactions: A Case of an Extreme Generalist, the Two-Spotted Spider Mite <i>Tetranychus urticae</i> Open
Plant-herbivore interactions evolved over long periods of time, resulting in an elaborate arms race between interacting species. While specialist herbivores evolved specific strategies to cope with the defenses of a limited number of hosts…
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Geographical distribution and molecular insights into abamectin and milbemectin cross‐resistance in European field populations of <i>Tetranychus urticae</i> Open
BACKGROUND Milbemectin and abamectin are frequently used to control the spider mite Tetranychus urticae . The development of abamectin resistance in this major pest has become an increasing problem worldwide, potentially compromising the u…
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An (<i>E,E</i>)‐α‐farnesene synthase gene of soybean has a role in defence against nematodes and is involved in synthesizing insect‐induced volatiles Open
Summary Plant terpene synthase genes ( TPS s ) have roles in diverse biological processes. Here, we report the functional characterization of one member of the soybean TPS gene family, which was designated Gm AFS . Recombinant Gm AFS produ…
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Identification of a Novel Hypovirulence-Inducing Hypovirus From Alternaria alternata Open
Mycoviruses are wide spread throughout almost all groups of fungi but only a small number of mycoviruses can attenuate the growth and virulence of their fungal hosts. Alternaria alternata is an ascomycete fungus that causes leaf spot disea…
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Arabidopsis Kunitz Trypsin Inhibitors in Defense Against Spider Mites Open
Tetranychus urticae (two-spotted spider mite) is a striking example of polyphagy among herbivores with an extreme record of pesticide resistance and one of the most significant pests in agriculture. The T. urticae genome contains a large n…
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Targeted mutagenesis using CRISPR-Cas9 in the chelicerate herbivore Tetranychus urticae Open
The use of CRISPR-Cas9 has revolutionized functional genetic work in many organisms, including more and more insect species. However, successful gene editing or genetic transformation has not yet been reported for chelicerates, the second …
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Alternative food promotes broad mite control on chilli pepper plants Open
Many omnivorous arthropods are important natural enemies because they can feed on plant-provided pollen and several prey species, and thus persist in crops even in the absence of the target pest. Hence, populations of these predators can b…
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Endosymbiont diversity and prevalence in herbivorous spider mite populations in South-Western Europe Open
Bacterial endosymbionts are known as important players of the evolutionary ecology of their hosts. However, their distribution, prevalence and diversity are still largely unexplored. To this aim, we investigated infections by the most comm…
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Stably Expressed Housekeeping Genes across Developmental Stages in the Two-Spotted Spider Mite, Tetranychus urticae Open
Quantitative real-time PCR (qRT-PCR) is a reliable and reproducible technique for measuring mRNA expression. To facilitate gene expression studies and obtain more accurate qRT-PCR analysis, normalization relative to stable housekeeping gen…
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Biological Control of the Twospotted Spider Mite (Trombidiformes: Tetranychidae) with the Predatory Mite Neoseiulus californicus (Mesotigmata: Phytoseiidae) in Blackberries Open
The twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is a key mite pest affecting blackberry production worldwide. Tetranychus urticae feeds on the underside of leaves, extracts chlorophyll, and reduces crop yield. …
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<i><span>T</span>etranychus urticae</i>‐triggered responses promote genotype‐dependent conspecific repellence or attractiveness in citrus Open
Summary The citrus rootstocks sour orange and Cleopatra mandarin display differential resistance against Tetranychus urticae . Sour orange plants support reduced oviposition, growth rates and damage compared with Cleopatra mandarin plants.…
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Why Do Herbivorous Mites Suppress Plant Defenses? Open
Plants have evolved numerous defensive traits that enable them to resist herbivores. In turn, this resistance has selected for herbivores that can cope with defenses by either avoiding, resisting or suppressing them. Several species of her…
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Botanicals Against Tetranychus urticae Koch Under Laboratory Conditions: A Survey of Alternatives for Controlling Pest Mites Open
Tetranychus urticae Koch is a phytophagous mite capable of altering the physiological processes of plants, causing damages estimated at USD$ 4500 per hectare, corresponding to approximately 30% of the total cost of pesticides used in some …
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Diurnal Temperature Variations Affect Development of a Herbivorous Arthropod Pest and its Predators Open
The impact of daily temperature variations on arthropod life history remains woefully understudied compared to the large body of research that has been carried out on the effects of constant temperatures. However, diurnal varying temperatu…
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Tetranins: new putative spider mite elicitors of host plant defense Open
Summary The two‐spotted spider mite ( Tetranychus urticae ) is a plant‐sucking arthropod herbivore that feeds on a wide array of cultivated plants. In contrast to the well‐characterized classical chewing herbivore salivary elicitors that p…