Publications

a novel virus from macrosiphum euphorbiae with similarities to members of the family flaviviridae.	a virus with a large genome was identified in the transcriptome of the potato aphid (macrosiphum euphorbiae) and was named macrosiphum euphorbiae virus 1 (mev-1). the mev-1 genome is 22 780 nt in size, including 3' and 5' non-coding regions, with a single large orf encoding a putative polyprotein of 7333 aa. the c-terminal region of the predicted mev-1 polyprotein contained sequences with similarities to helicase, methyltransferase and rna-dependent rna polymerase (rdrp) motifs, while the n-term ...	2016	26822322
impact of aphid alarm pheromone release on virus transmission efficiency: when pest control strategy could induce higher virus dispersion.	aphids cause serious damages to crops not only by tacking sap but also by transmitting numerous viruses. to develop biological control, the aphid alarm pheromone, namely e-β-farnesene (eβf), has been demonstrated to be efficient to repel aphids and as attract beneficials, making it a potential tool to control aphid pests. considering aphids also as virus vectors, changes of their behavior could also interfere with the virus acquisition and transmission process. here, a combination of two aphid s ...	2016	27185564
the conformation of a plasma membrane-localized somatic embryogenesis receptor kinase complex is altered by a potato aphid-derived effector.	somatic embryogenesis receptor kinases (serks) are transmembrane receptors involved in plant immunity. tomato (solanum lycopersicum) carries three serk members. one of these, slserk1, is required for mi-1.2-mediated resistance to potato aphids (macrosiphum euphorbiae). mi-1.2 encodes a coiled-coil nucleotide-binding leucine-rich repeat protein that in addition to potato aphids confers resistance to two additional phloem-feeding insects and to root-knot nematodes (meloidogyne spp.). how slserk1 p ...	2016	27208261
the potato aphid salivary effector me47 is a glutathione-s-transferase involved in modifying plant responses to aphid infestation.	polyphagous aphid pests cause considerable economic damage to crop plants, primarily through the depletion of photoassimilates and transfer of viruses. the potato aphid (macrosiphum euphorbiae) is a notable pest of solanaceous crops, however, the molecular mechanisms that underpin the ability to colonize these hosts are unknown. it has recently been demonstrated that like other aphid species, m. euphorbiae injects a battery of salivary proteins into host plants during feeding. it is speculated t ...	2016	27536306
plant responses to brief touching: a mechanism for early neighbour detection?	in natural habitats plants can be exposed to brief and light contact with neighbouring plants. this mechanical stimulus may represent a cue that induces responses to nearby plants. however, little is known about the effect of touching on plant growth and interaction with insect herbivores. to simulate contact between plants, a soft brush was used to apply light and brief mechanical stimuli to terminal leaves of potato solanum tuberosum l. the number of non-glandular trichomes on the leaf surface ...	2016	27828995
life-history traits of macrolophus pygmaeus with different prey foods.	macrolophus pygmaeus rambur (hemiptera: miridae) is a generalist predatory mirid widely used in augmentative biological control of various insect pests in greenhouse tomato production in europe, including the invasive tomato leafminer, tuta absoluta (meyrick) (lepidoptera, gelechiidae). however, its biocontrol efficacy often relies on the presence of alternative prey. the present study aimed at evaluating the effect of various prey foods (ephestia kuehniella eggs, bemisia tabaci nymphs, tuta abs ...	2016	27870857
cis-jasmone elicits aphid-induced stress signalling in potatoes.	elicitation of plant defense signaling that results in altered emission of volatile organic compounds (vocs) offers opportunities for protecting plants against arthropod pests. in this study, we treated potato, solanum tuberosum l., with the plant defense elicitor cis-jasmone (cj), which induces the emission of defense vocs and thus affects the behavior of herbivores. using chemical analysis, electrophysiological and behavioral assays with the potato-feeding aphid macrosiphum euphorbiae, we show ...	2017	28130741
potato aphid macrosiphum euphorbiae performance is determined by aphid genotype and not mycorrhizal fungi or water availability.	intra- and inter-specific variation in plant and insect traits can alter the strength and direction of insect-plant interactions, with outcomes modified by soil biotic and abiotic conditions. we used the potato aphid (macrosiphum euphorbiae thomas) feeding on cultivated s. tuberosum and wild s. berthaulti to study the impact of water availability and plant mutualistic arbuscular mycorrhizal (am) fungi on aphid performance and susceptibility to a parasitoid wasp (aphidius ervi haliday). plants we ...	2017	28213920
specificity of induced resistance in the tomato, lycopersicon esculentum.	specificity in the induced responses of tomato foliage to arthropod herbivores was investigated. we distinguished between two aspects of specificity: specificity of effect (the range of organisms affected by a given induced response), and specificity of elicitation (ability of the plant to generate distinct chemical responses to different damage types). specificity of effect was investigated by examining the effect of restricted feeding by helicoverpa zea on the resistance of tomato plants to an ...	1997	28307296
effect of plant development (age and size) on the mi-1-mediated resistance of tomato to whitefly bemisia tabaci.	whitefly, bemisia tabaci, is one of the most important pests of tomato, solanum lycopersicum l. the mi-1 gene mediates tomato resistance to the middle east-asia minor 1 (meam1) and mediterranean (med) species of b. tabaci, three species of root-knot nematodes, meloidogyne spp., and the potato aphid, macrosiphum euphorbiae. tomato seedlings bearing the mi-1 gene are resistant to nematodes soon after germination but resistance to aphids is developmentally regulated; a reliable conclusion about mi- ...	2017	28397642
trichoderma harzianum enhances tomato indirect defense against aphids.	many fungal root symbionts of the genus trichoderma are well-known for their beneficial effects on agronomic performance and protection against plant pathogens; moreover, they may enhance protection from insect pests, by triggering plant resistance mechanisms. defense barriers against insects are induced by the activation of metabolic pathways involved in the production of defense-related plant compounds, either directly active against herbivore insects, or exerting an indirect effect, by increa ...	2017	28475289
spatial and temporal dynamics of aphids (hemiptera: aphididae) in the columbia basin and northeastern oregon.	aphid species, such as the potato aphid, macrosiphum euphorbiae thomas, and the green peach aphid, myzus persicae sulzer, are routinely considered the most important pests of potatoes. potato aphid, green peach aphid, and more recently, other aphids such as the bird cherry-oat aphid rhopalosiphum padi l. have been identified as vectors of multiple plant pathogenic viruses in potatoes. since 2006, an area-wide trapping network consisting of ∼60 sites was developed through collaboration between re ...	2017	28510728
role of the aphid species and their feeding locations in parasitization behavior of aphelinus abdominalis, a parasitoid of the lettuce aphid nasonovia ribisnigri.	aphid species feeding on lettuce occupy distinct feeding sites: the lettuce aphid nasonovia ribisnigri prefers to feed on heart leaves, whereas the potato aphid macrosiphum euphorbiae feeds only on outer leaves. the aphid parasitoid aphelinus abdominalis, known to be able to regulate m. euphorbiae on many crops, has recently been indicated as a promising biocontrol candidate also for use against n. ribisnigri, a major pest of lettuce. this study therefore examined a. abdominalis parasitization p ...	2017	28854232