1. A Massive Expansion of Effector Genes Underlies Gall-Formation in the Wheat Pest Mayetiola destructor.

    Current Biology 25(5):613 (2015) PMID 25660540

    Gall-forming arthropods are highly specialized herbivores that, in combination with their hosts, produce extended phenotypes with unique morphologies [1]. Many are economically important, and others have improved our understanding of ecology and adaptive radiation [2]. However, the mechanisms th...
  2. A Massive Expansion of Effector Genes Underlies Gall-Formation in the Wheat Pest Mayetiola destructor

    Current Biology (2014)

    • The plant galling Mayetiola destructor genome is replete with effector genes • The SSGP-71 effector gene family is the largest known arthropod gene family. ...
  3. Non-host volatile blend optimization for forest protection against the European spruce bark beetle, Ips typographus.

    PLoS ONE 9(1):e85381 (2014) PMID 24454855 PMCID PMC3891852

    Conifer feeding bark beetles (Coleoptera, Curculionidae, Scolytinae) pose a serious economic threat to forest production. Volatiles released by non-host angiosperm plants (so called non-host volatiles, NHV) have been shown to reduce the risk of attack by many bark beetle species, including the E...
  4. Non-host volatile blend optimization for forest protection against the European spruce bark beetle, Ips typographus.

    PLoS ONE 9(1):e85381 (2014) PMID 24454855 PMCID PMC3891852

    Conifer feeding bark beetles (Coleoptera, Curculionidae, Scolytinae) pose a serious economic threat to forest production. Volatiles released by non-host angiosperm plants (so called non-host volatiles, NHV) have been shown to reduce the risk of attack by many bark beetle species, including the E...
  5. Sex- and tissue-specific profiles of chemosensory gene expression in a herbivorous gall-inducing fly (Diptera: Cecidomyiidae).

    BMC Genomics 15:501 (2014) PMID 24948464 PMCID PMC4230025

    The chemical senses of insects mediate behaviors that are closely linked to survival and reproduction. The order Diptera contains two model organisms, the vinegar fly Drosophila melanogaster and the mosquito Anopheles gambiae, whose chemosensory genes have been extensively studied. Representing ...
  6. Sex- and tissue-specific profiles of chemosensory gene expression in a herbivorous gall-inducing fly (Diptera: Cecidomyiidae).

    BMC Genomics 15:501 (2014) PMID 24948464 PMCID PMC4230025

    The chemical senses of insects mediate behaviors that are closely linked to survival and reproduction. The order Diptera contains two model organisms, the vinegar fly Drosophila melanogaster and the mosquito Anopheles gambiae, whose chemosensory genes have been extensively studied. Representing ...
  7. Specificity and sensitivity of plant odor-detecting olfactory sensory neurons inCtenarytaina eucalypti(Sternorrhyncha: Psyllidae)

    Journal of Insect Physiology 59(5):542 (2013)

  8. Specificity and sensitivity of plant odor-detecting olfactory sensory neurons in Ctenarytaina eucalypti (Sternorrhyncha: Psyllidae).

    Journal of Insect Physiology 59(5):542 (2013) PMID 23524066

    The blue gum psyllid, Ctenarytaina eucalypti (Sternorrhyncha: Psyllidae), is an economic threat to Eucalyptus subgenus Symphyomyrtus plantations worldwide. To date, no generally applicable control method is available and the potential for semiochemical-based monitoring or control methods has not...
  9. Antennal transcriptome analysis of the chemosensory gene families in the tree killing bark beetles, Ips typographus and Dendroctonus ponderosae (Coleoptera: Curculionidae: Scolytinae).

    BMC Genomics 14:198 (2013) PMID 23517120 PMCID PMC3610139

    The European spruce bark beetle, Ips typographus, and the North American mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae: Scolytinae), are severe pests of coniferous forests. Both bark beetle species utilize aggregation pheromones to coordinate mass-attacks on host trees...
  10. Antennal transcriptome analysis of the chemosensory gene families in the tree killing bark beetles, Ips typographus and Dendroctonus ponderosae (Coleoptera: Curculionidae: Scolytinae).

    BMC Genomics 14:198 (2013) PMID 23517120 PMCID PMC3610139

    The European spruce bark beetle, Ips typographus, and the North American mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae: Scolytinae), are severe pests of coniferous forests. Both bark beetle species utilize aggregation pheromones to coordinate mass-attacks on host trees...
  11. Characterization of olfactory sensory neurons in the white clover seed weevil,Apion fulvipes(Coleoptera: Apionidae)

    Journal of Insect Physiology 58(10):1325 (2012)

    Graphical abstract
  12. Characterization of olfactory sensory neurons in the white clover seed weevil, Apion fulvipes (Coleoptera: Apionidae).

    Journal of Insect Physiology 58(10):1325 (2012) PMID 22841598

    Seed-eating Apion weevils (Coleoptera: Apionidae) cause large economic losses in white and red clover seed production across Europe. Monitoring and control of clover weevils would be facilitated by semiochemical-based methods. Until now, however, nothing was known about physiological or behavior...
  13. What reaches the antenna? How to calibrate odor flux and ligand-receptor affinities.

    Chemical Senses 37(5):403 (2012) PMID 22362868

    Physiological studies on olfaction frequently ignore the airborne quantities of stimuli reaching the sensory organ. We used a gas chromatography-calibrated photoionization detector to estimate quantities released from standard Pasteur pipette stimulus cartridges during repeated puffing of 27 com...
  14. What reaches the antenna? How to calibrate odor flux and ligand-receptor affinities.

    Chemical Senses 37(5):403 (2012) PMID 22362868

    Physiological studies on olfaction frequently ignore the airborne quantities of stimuli reaching the sensory organ. We used a gas chromatography-calibrated photoionization detector to estimate quantities released from standard Pasteur pipette stimulus cartridges during repeated puffing of 27 com...
  15. Attraction modulated by spacing of pheromone components and anti-attractants in a bark beetle and a moth.

    Journal of Chemical Ecology 37(8):899 (2011) PMID 21750948

    Orientation for insects in olfactory landscapes with high semiochemical diversity may be a challenging task. The partitioning of odor plumes into filaments that are interspersed with pockets of 'clean air' may help filament discrimination and upwind flight to attractive sources in the face of in...
  16. Attraction modulated by spacing of pheromone components and anti-attractants in a bark beetle and a moth.

    Journal of Chemical Ecology 37(8):899 (2011) PMID 21750948

    Orientation for insects in olfactory landscapes with high semiochemical diversity may be a challenging task. The partitioning of odor plumes into filaments that are interspersed with pockets of 'clean air' may help filament discrimination and upwind flight to attractive sources in the face of in...
  17. Peripheral modulation of pheromone response by inhibitory host compound in a beetle.

    Journal of Experimental Biology 213(Pt 19):3332 (2010) PMID 20833926

    We identified several compounds, by gas chromatographic-electroantennographic detection (GC-EAD), that were antennally active in the bark beetle Ips typographus and also abundant in beetle-attacked spruce trees. One of them, 1,8-cineole (Ci), strongly inhibited the attraction to pheromone in the...
  18. Peripheral modulation of pheromone response by inhibitory host compound in a beetle.

    Journal of Experimental Biology 213(Pt 19):3332 (2010) PMID 20833926

    We identified several compounds, by gas chromatographic-electroantennographic detection (GC-EAD), that were antennally active in the bark beetle Ips typographus and also abundant in beetle-attacked spruce trees. One of them, 1,8-cineole (Ci), strongly inhibited the attraction to pheromone in the...
  19. Specificity and redundancy in the olfactory system of the bark beetle Ips typographus: single-cell responses to ecologically relevant odors.

    Journal of Insect Physiology 55(6):556 (2009) PMID 19233334

    We screened 150 olfactory sensilla in single-sensillum recordings to unravel the mechanisms underlying host selection in the spruce bark beetle, Ips typographus (Coleoptera: Curculionidae: Scolytinae). Odor stimuli comprised of pheromone (various bark beetle spp.), host, and non-host compounds e...
  20. Identification of sex pheromone components of the hessian fly, Mayetiola destructor.

    Journal of Chemical Ecology 35(1):81 (2009) PMID 19067080

    Coupled gas chromatographic (GC)-electroantennographic detection (EAD) analyses of ovipositor extract of calling Hessian fly, Mayetiola destructor, females revealed that seven compounds elicited responses from male antennae. Four of the compounds-(2S)-tridec-2-yl acetate, (2S,10Z)-10-tridecen-2-...