Imperial College London

Professor Denis Wright

Faculty of Natural SciencesDepartment of Life Sciences

Emeritus Professor of Pest Management
 
 
 
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Contact

 

+44 (0)20 7594 1868d.wright

 
 
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Assistant

 

Dr Andrew Tingey +44 (0)20 7594 6617

 
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Location

 

521Sherfield BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

207 results found

Pinos D, Chakroun M, Millán-Leiva A, Jurat-Fuentes JL, Wright DJ, Hernández-Martínez P, Ferré Jet al., 2020, Reduced Membrane-Bound Alkaline Phosphatase Does Not Affect Binding of Vip3Aa in a Heliothis virescens Resistant Colony., Toxins (Basel), Vol: 12

The Vip3Aa insecticidal protein from Bacillus thuringiensis (Bt) is produced by specific transgenic corn and cotton varieties for efficient control of target lepidopteran pests. The main threat to this technology is the evolution of resistance in targeted insect pests and understanding the mechanistic basis of resistance is crucial to deploy the most appropriate strategies for resistance management. In this work, we tested whether alteration of membrane receptors in the insect midgut might explain the >2000-fold Vip3Aa resistance phenotype in a laboratory-selected colony of Heliothis virescens (Vip-Sel). Binding of 125I-labeled Vip3Aa to brush border membrane vesicles (BBMV) from 3rd instar larvae from Vip-Sel was not significantly different from binding in the reference susceptible colony. Interestingly, BBMV from Vip-Sel larvae showed dramatically reduced levels of membrane-bound alkaline phosphatase (mALP) activity, which was further confirmed by a strong downregulation of the membrane-bound alkaline phosphatase 1 (HvmALP1) gene. However, the involvement of HvmALP1 as a receptor for the Vip3Aa protein was not supported by results from ligand blotting and viability assays with insect cells expressing HvmALP1.

Journal article

Martinou AF, Schafer SM, Bueno Mari R, Angelidou I, Erguler K, Fawcett J, Ferraguti M, Foussadier R, Gkotsi TV, Martinos CF, Schafer M, Schaffner F, Peyton JM, Purse BV, Wright DJ, Roy HEet al., 2020, A call to arms: Setting the framework for a code of practice for mosquito management in European wetlands, JOURNAL OF APPLIED ECOLOGY, Vol: 57, Pages: 1012-1019, ISSN: 0021-8901

Journal article

Ayra-Pardo C, Ochagavia ME, Raymond B, Gulzar A, Rodriguez-Cabrera L, Rodriguez de la Noval C, Moran Bertot I, Terauchi R, Yoshida K, Matsumura H, Tellez Rodriguez P, Hernandez Hernandez D, Borras-Hidalgo O, Wright DJet al., 2019, HT-SuperSAGE of the gut tissue of a Vip3Aa-resistant Heliothis virescens (Lepidoptera: Noctuidae) strain provides insights into the basis of resistance, INSECT SCIENCE, Vol: 26, Pages: 479-498, ISSN: 1672-9609

Journal article

Rodriguez-de la Noval C, Rodriguez-Cabrera L, Izquierdo L, Espinosa LA, Hernandez D, Ponce M, Moran-Bertot I, Tellez-Rodriguez P, Borras-Hidalgo O, Huang S, Kan Y, Wright DJ, Ayra-Pardo Cet al., 2019, Functional expression of a peritrophin A-like SfPER protein is required for larval development in Spodoptera frugiperda (Lepidoptera: Noctuidae), SCIENTIFIC REPORTS, Vol: 9, ISSN: 2045-2322

Journal article

Pickett BR, Gulzar A, Ferre J, Wright DJet al., 2017, Bacillus thuringiensis Vip3Aa Toxin Resistance in Heliothis virescens (Lepidoptera: Noctuidae), APPLIED AND ENVIRONMENTAL MICROBIOLOGY, Vol: 83, ISSN: 0099-2240

Journal article

Ali A, Wright DJ, Tariq K, 2016, Resistance to Peach-potato Aphid, Myzus persicae Sulzer (Hemiptera: Aphididae) in Potato Cultivars, GESUNDE PFLANZEN, Vol: 68, Pages: 213-219, ISSN: 0367-4223

Journal article

Midthassel A, Leather SR, Wright DJ, Baxter IHet al., 2016, Compatibility of Amblyseius swirskii with Beauveria bassiana: two potentially complimentary biocontrol agents, BIOCONTROL, Vol: 61, Pages: 437-447, ISSN: 1386-6141

Journal article

Purnomo H, Wright DJ, 2016, Multiple Release Of Two Different Hymenoptera Parasitoid Of Leafminer Fly, Synergy Or Competition, International Conference on Food, Agriculture and Natural Resources (IC-FANRes), Publisher: ELSEVIER SCIENCE BV, Pages: 64-71, ISSN: 2210-7843

Conference paper

Midthassel A, Leather S, Wright DJ, Baxter IH, Farman DI, Cork Aet al., 2015, An astigmatid defence volatile against a phytoseiid mite, Entomologia Experimentalis et Applicata, Vol: 158, Pages: 97-107, ISSN: 1570-7458

Numerous semiochemicals have been isolated from several species of astigmatid mites with various identified or unidentified functions. Alarm pheromonal activity is widespread with neryl formate and neral, being the most common compounds eliciting alarm response in conspecifics. The cosmopolitan astigmatid mite Suidasia medanensis (= S. pontifica) Oudemans (Acari: Suidasidae) has been reported to use neral as an alarm pheromone, but neral can also act as an allomone towards predators of oribatid mites. Suidasia medanensis can be utilised as a factitious prey for mass-rearing of the phytoseiid predatory mite Amblyseius (= Typhlodromips) swirskii (Athias-Henriot) (Acari: Phytoseiidae), which is used for biological control of insect and mite pests in protected crops. This study investigated the potential defence properties of the S. medanensis volatiles against A. swirskii, comparing the repellency to pollen-reared (naïve) vs. S. medanensis-reared (experienced) predators using a synthetic blend of the isomers neral and geranial (1:1) as a model compound. In a repellency bioassay, the synthetic blend elicited a significant repellence to A. swirskii with no difference between naïve and experienced predators. During capture success studies, S. medanensis under repeated attack could release sufficient quantities of the defence volatile to deter 1–5 attacks from A. swirskii, whereas hexane-treated S. medanensis artificially depleted of volatiles were significantly more vulnerable to an attack. This is the first report of an astigmatid defence volatile with repellent activity to a phytoseiid mite and the starting point to understanding semiochemical interactions in any current or novel factitious predator-prey mass-rearing system.

Journal article

Ayra-Pardo C, Raymond B, Gulzar A, Rodriguez-Cabrera L, Moran-Bertot I, Crickmore N, Wright DJet al., 2015, Novel genetic factors involved in resistance to Bacillus thuringiensis in Plutella xylostella, INSECT MOLECULAR BIOLOGY, Vol: 24, Pages: 589-600, ISSN: 0962-1075

Journal article

Gulzar A, Wright DJ, 2015, Sub-lethal effects of Vip3A toxin on survival, development and fecundity of Heliothis virescens and Plutella xylostella, ECOTOXICOLOGY, Vol: 24, Pages: 1815-1822, ISSN: 0963-9292

Journal article

Macdonald CA, Crawley MJ, Wright DJ, Kuczynski J, Robinson L, Knight R, Abu Al-Soud W, Sorensen SJ, Deng Y, Zhou J, Singh BKet al., 2015, Identifying qualitative effects of different grazing types on below-ground communities and function in a long-term field experiment, ENVIRONMENTAL MICROBIOLOGY, Vol: 17, Pages: 841-854, ISSN: 1462-2912

Journal article

Ishtiaq M, Razaq M, Saleem MA, Anjum F, ul Ane MN, Raza AM, Wright DJet al., 2014, Stability, cross-resistance and fitness costs of resistance to emamectin benzoate in a re-selected field population of the beet armyworm, Spodoptera exigua (Lepidoptera: Noctuidae), CROP PROTECTION, Vol: 65, Pages: 227-231, ISSN: 0261-2194

Journal article

Facey SL, Ellsworth DS, Staley JT, Wright DJ, Johnson SNet al., 2014, Upsetting the order: how climate and atmospheric change affects herbivore-enemy interactions, CURRENT OPINION IN INSECT SCIENCE, Vol: 5, Pages: 66-74, ISSN: 2214-5745

Journal article

Tellez-Rodriguez P, Raymond B, Moran-Bertot I, Rodriguez-Cabrera L, Wright DJ, Borroto CG, Ayra-Pardo Cet al., 2014, Strong oviposition preference for Bt over non-Bt maize in Spodoptera frugiperda and its implications for the evolution of resistance, BMC BIOLOGY, Vol: 12

Journal article

Midthassel A, Leather SR, Wright DJ, Baxter IHet al., 2014, The functional and numerical response of Typhlodromips swirskii (Acari: Phytoseiidae) to the factitious prey Suidasia medanensis (Acari: Suidasidae) in the context of a breeding sachet, BIOCONTROL SCIENCE AND TECHNOLOGY, Vol: 24, Pages: 361-374, ISSN: 0958-3157

Journal article

Clewley GD, Wright DJ, 2014, Winter hosts of Aphalara itadori (Hemiptera: Psyllidae), a classical biological control agent of Fallopia japonica (Polygonaceae), in the UK, BIOCONTROL SCIENCE AND TECHNOLOGY, Vol: 24, Pages: 1197-1201, ISSN: 0958-3157

Journal article

Gulzar A, Wright DJ, 2014, Fluctuating Asymmetry, Morphological Changes and Flight Muscle Ratio in a Vip3A Resistant Sub-population of Heliothis virescens (WF06), INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY, Vol: 16, Pages: 416-420, ISSN: 1560-8530

Journal article

Tariq M, Rossiter JT, Wright DJ, Staley JTet al., 2013, Drought alters interactions between root and foliar herbivores, OECOLOGIA, Vol: 172, Pages: 1095-1104, ISSN: 0029-8549

Journal article

Tariq M, Wright DJ, Bruce TJA, Staley JTet al., 2013, Drought and Root Herbivory Interact to Alter the Response of Above-Ground Parasitoids to Aphid Infested Plants and Associated Plant Volatile Signals, PLOS ONE, Vol: 8, ISSN: 1932-6203

Journal article

Karimzadeh J, Hardie J, Wright DJ, 2013, Plant Resistance Affects the Olfactory Response and Parasitism Success of Cotesia vestalis, JOURNAL OF INSECT BEHAVIOR, Vol: 26, Pages: 35-50, ISSN: 0892-7553

Journal article

Furlong MJ, Wright DJ, Dosdall LM, 2013, Diamondback Moth Ecology and Management: Problems, Progress, and Prospects, ANNUAL REVIEW OF ENTOMOLOGY, VOL 58, Editors: Berenbaum, Publisher: ANNUAL REVIEWS, Pages: 517-+

Book chapter

Raymond B, Wright DJ, Crickmore N, Bonsall MBet al., 2013, The impact of strain diversity and mixed infections on the evolution of resistance to Bacillus thuringiensis, Proceedings of the Royal Society B-Biological Sciences, Vol: in press

Journal article

Clewley GD, Eschen R, Shaw RH, Wright DJet al., 2012, The effectiveness of classical biological control of invasive plants, JOURNAL OF APPLIED ECOLOGY, Vol: 49, Pages: 1287-1295, ISSN: 0021-8901

Journal article

Banfield-Zanin JA, Rossiter JT, Wright DJ, Leather SR, Staley JTet al., 2012, Predator mortality depends on whether its prey feeds on organic or conventionally fertilised plants, BIOLOGICAL CONTROL, Vol: 63, Pages: 56-61, ISSN: 1049-9644

Journal article

Stafford DB, Tariq M, Wright DJ, Rossiter JT, Kazana E, Leather SR, Ali M, Staley JTet al., 2012, Opposing effects of organic and conventional fertilizers on the performance of a generalist and a specialist aphid species, AGRICULTURAL AND FOREST ENTOMOLOGY, Vol: 14, Pages: 270-275, ISSN: 1461-9555

Journal article

Pope TW, Girling RD, Staley JT, Trigodet B, Wright DJ, Leather SR, van Emden HF, Poppy GMet al., 2012, Effects of organic and conventional fertilizer treatments on host selection by the aphid parasitoid Diaeretiella rapae, JOURNAL OF APPLIED ENTOMOLOGY, Vol: 136, Pages: 445-455, ISSN: 0931-2048

Journal article

Gulzar A, Pickett B, Sayyed AH, Wright DJet al., 2012, Effect of Temperature on the Fitness of a Vip3A Resistant Population of Heliothis virescens (Lepidoptera: Noctuidae), JOURNAL OF ECONOMIC ENTOMOLOGY, Vol: 105, Pages: 964-970, ISSN: 0022-0493

Journal article

Tariq M, Wright DJ, Rossiter JT, Staley JTet al., 2012, Aphids in a changing world: testing the plant stress, plant vigour and pulsed stress hypotheses, AGRICULTURAL AND FOREST ENTOMOLOGY, Vol: 14, Pages: 177-185, ISSN: 1461-9555

Journal article

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