Research Publications

  1. Meijer, J. van der Vleut, B.T. Weldegergis, T. Costaz, M.V.A. Duarte, A. Pekas, J.J.A. van Loon & M. Dicke. Effects of far-red light on tritrophic interactions between the two-spotted spider mite (Tetranychus urticae) and the predatory mite Phytoseiulus persimilis on tomato. Pest Management Science 2023. doi: 10.1002/ps.7358. HTML Link.
  2. K.Y. Barragán-Fonseca, Q. Rusman, D. Mertens, B.T. Weldegergis, J. Peller, G. Polder, J.J.A. van Loon & M. Dicke. Insect exuviae as soil amendment affect flower reflectance and increase flower production and plant volatile emission. Plant, Cell and Environment 46 (2023) 931–945. doi: 10.1111/pce.14516. HTML Link.
  3. N.O. Verhulst, A. Umanets, B.T. Weldegergis, J.P.A. Maas, T. M. Visser, M. Dicke, H. Smidt & W. Takken. Do apes smell like humans? The role of skin bacteria and volatiles of primates in mosquito host selection. Journal of Experimental Biology 221 (2018): jeb185959. doi: 10.1242/jeb.185959. HTML Link.
  4. B.T. Weldegergis, F. Zhu, E.H. Poelman & M. Dicke. Correction to: Drought stress affects plant metabolites and herbivore preference but not host location by its parasitoids. Oecologia 187 (2018) 873–714. doi: 10.1007/s00442-018-4149-8. HTML Link.
  5. F. Zhu, A. Cusumano, J. Bloem, B.T. Weldegergis, A. Villela, N.E. Fatouros, J.J.A. van Loon, M. Dicke, J.A. Harvey, H. Vogel, & E.H. Poelman. Symbiotic polydnavirus and venom reveal parasitoid to its hyperparasitoids. Proceedings of the National Academy of Sciences of the United States of America: PNAS . doi: 10.1073/pnas.1717904115. HTML Link.
  6. E. Frago, M. Mala, B.T. Weldegergis, C. Yang, A. McLean, H.C.J. Godfray, R. Gols & M. Dicke. Symbionts protect aphids from parasitic wasps by attenuating herbivore-induced plant volatiles. Nature Communications 8 (2017): 1860. doi: 10.1038/s41467-017-01935-0. HTML Link.
  7. A. Kroes, B.T. Weldegergis, F. Cappai, M. Dicke & J.J.A. van Loon. Terpenoid biosynthesis in Arabidopsis attacked by caterpillars and aphids: effects of aphid density on the attraction of a caterpillar parasitoid. Oecologia 185 (2017) 699–712. doi: 10.1007/s00442-017-3985-2. HTML Link.
  8. M. Schettino, D.A. Grasso, B.T. WeldegergisC. Castracani, A. Mori, M. Dicke, J.C. Van Lenteren, & J.J.A. Van Loon. Response of a Predatory ant to Volatiles Emitted by Aphid- and Caterpillar-Infested Cucumber and Potato Plants. Journal of Chemical Ecology 43 (2017) 10071022. doi: 10.1007/s10886-017-0887-z. HTML Link.
  9. Y. Li, B.T. Weldegergis, S. Chamontri, M. Dicke & R. Gols. Does Aphid Infestation Interfere with Indirect Plant Defense against Lepidopteran Caterpillars in Wild Cabbage? Journal of Chemical Ecology 43 (2017) 493–505. doi: 10.1007/s10886-017-0842-z. HTML Link.
  10. Junker et al. 2017. Covariation and phenotypic integration in chemical communication displays: biosynthetic constraints and eco-evolutionary implications. New Phytologist (In Press). doi:10.1111/nph.14505. HTML Link.
  11. D.B. Silva, B.T. Weldegergis, J.J.A. Van Loon & V.H. P. Bueno. Qualitative and quantitative differences in herbivore-induced plant volatile blends from tomato plants infested by either Tuta absoluta or Bemisia tabaci. Journal of Chemical Ecology 43 (2017) 53–65. doi: 10.1007/s10886-016-0807-7. HTML Link.
  12. L.E. Cortés, B.T. Weldegergis, H.E. Boccalandro, M. Dicke & C.L. Ballaré. Trading direct for indirect defense? Phytochrome B inactivation in tomato attenuates direct anti-herbivore defenses whilst enhancing volatile-mediated attraction of predators. New Phytologist 212 (2016) 1057–1071. doi: 10.1111/nph.14210. HTML Link.
  13. M. Fei, J.A. Harvey, B.T. Weldegergis, T. Huang, K. Reijngoudt, L.M. Vet & R. Gols. Integrating Insect Life History and Food Plant Phenology: Flexible Maternal Choice Is Adaptive. International Journal of Molecular Science 2016, 17(8): 1263. doi:10.3390/ijms17081263. HTML Link.
  14. C. Ponzio, B.T. Weldegergis, M. Dicke & R. Gols. Compatible and incompatible pathogen-plant interactions differentially affect plant volatile emissions and the attraction of parasitoid wasps. Functional Ecology 30 (2016) 1779–1789. doi: 10.1111/1365-2435.12689. HTML Link.
  15. N.O. Verhulst, B.T. Weldegergis, D. Menger & W. Takken. Attractiveness of volatiles from different body parts to the malaria mosquito Anopheles coluzzii is affected by deodorant compounds. Scientific Reports 2016, 6:27141. doi: 10.1038/srep27141. HTML Link.
  16. C. Ponzio, P. Cascone, A. Cusumano, B.T. Weldegergis, N.E. Fatouros, E. Guerrieri, M. Dicke & R. Gols. Volatile-mediated foraging behaviour of three parasitoid species under conditions of dual insect herbivore attack. Animal Behaviour 111 (2016) 197–206. doi: 10.1016/j.anbehav.2015.10.024. MTHL Link.
  17. A. Cusumano, B.T. Weldegergis, S. Colazza, M. Dicke & N.E. Fatouros. Attraction of egg‑killing parasitoids toward induced plant volatiles in a multi‑herbivore context. Oecologia 179 (2015) 163–174. doi: 10.1007/s00442-015-3325-3. HTML Link.
  18. C.K. Mweresa, B. Otieno, P. Omusula, B.T. Weldegergis, N.O. Verhulst, M. Dicke, J.J.A. van Loon, W. Takken & W.R. Mukabana. Understanding the Long-Lasting Attraction of Malaria Mosquitoes to Odor Baits. PLoS ONE 2015, 10(3): e0121533. doi: 10.1371/journal.pone.0121533. HTML Link.
  19. N. Pangesti, B.T. Weldegergis, B. Langendorf, J.J.A. van Loon, M. Dicke & A. Pineda. Rhizobacterial colonization of roots modulates plant volatile emission and enhances the attraction of a parasitoid wasp to host-infested plants. Oecologia 178 (2015) 1169–1180. doi: 10.1007/s00442-015- 3277-7. HTML Link.
  20. F. Zhu, C. Broekgaarden, B.T. Weldegergis, J.A. Harvey, B. Vosman, M. Dicke & E.H. Poelman. Parasitism overrides herbivore identity allowing hyperparasitoids to locate their parasitoid host using herbivore-induced plant volatiles. Molecular Ecology 24 (2015) 2886–2899. doi: 10.1111/mec.13164. HTML Link.
  21. K. Oku, B.T. Weldegergis, E.H. Poelman, P.W. De Jong & M. Dicke. Altered Volatile Profile Associated with Precopulatory Mate Guarding Attracts Spider Mite Males. Journal of Chemical Ecology 41 (2015) 187–193. doi: 10.1007/s10886-015-0547-0. HTML Link.
  22. B.T. Weldegergis, F. Zhu, E.H. Poelman & M. Dicke. Drought stress affects plant metabolites and herbivore preference but not host location by its parasitoids. Oecologia 177 (2015) 701–713. doi: 10.1007/s00442-014-3129-x. HTML Link.
  23. F.G. Pashalidou, R. Gols, B.W. Berkhout, B.T. Weldegergis, J.J.A. van Loon, M. Dicke & N.E. Fatouros. To be in time: egg deposition enhances plant-mediated detection of young caterpillars by parasitoids. Oecologia 177 (2015) 477–486. doi: 10.1007/s00442-014-3098-0. HTML Link.
  24. R. Li, B.T. Weldegergis, J. Li, C. Jung, J. Qu, Y. Sun, H. Qian, C. Tee, J.J.A. van Loon, M. Dicke, N. Chua, S. Liu, & J. Ye. Virulence Factors of Geminivirus Interact with MYC2 to Subvert Plant Resistance and Promote Vector Performance. The Plant Cell 26 (2014) 4991–5008. doi: 10.1105/tpc.114.133181. HTML Link.
  25. Feng Zhu, B.T. Weldegergis, B. Lhie, J.A. Harvey, M. Dicke & E.H. Poelman. Body Odors of Parasitized Caterpillars Give Away the Presence of Parasitoid Larvae to Their Primary Hyperparasitoid Enemies. Journal of Chemical Ecology 40 (2014) 986–995. doi: 10.1007/s10886-014-0500-7. HTML Link.
  26. T.R. Menzel, T. Huang, B.T. Weldegergis, R. Gols, J.J.A. van Loon & M. Dicke. Effect of Sequential Induction by Mamestra brassicae L. and Tetranychus urticae Koch on Lima Bean Plant Indirect Defense. Journal of Chemical Ecology 40 (2014) 977–985. doi: 10.1007/s10886-014-0499-9. HTML Link.
  27. T.R. Menzel, B.T. Weldegergis, A. David, W. Boland, R. Gols, J.J.A. van Loon, M. Dicke. Synergism in the effect of prior jasmonic acid application to Lima bean plants on herbivore-induced volatile emission: transcription of a monoterpene synthase gene and volatile emission. Journal of Experimental Botany 65 (2014) 4821–4831. doi:10.1093/jxb/eru242. HTML Link.
  28. C. Ponzio, R. Gols, B.T. Weldegergis & M. Dicke. Caterpillar-induced plant volatiles remain a reliable signal for foraging wasps during dual attack with a plant pathogen or non-host insect herbivore. Plant, Cell and Environment 37 (2014) 1924–1935. doi: 10.1111/pce.12301. HTML Link.
  29. W. Kegge, B.T. Weldegergis, R. Soler, M.V. van Eijk, M. Dicke, L.A.C.J. Voesenek & R. Pierik. Canopy light cues affect emission of constitutive and methyl jasmonate-induced volatile organic compounds in Arabidopsis thaliana. New Phytologist 200 (2013) 861–874. doi: 10.1111/nph.12407. HTML Link.
  30. A. Pineda, R. Soler, B.T. Weldegergis, M. Shimwela, J.J.A. van Loon & M. Dicke. Non-pathogenic rhizobacteria interfere with the attraction of parasitoids to aphid-induced plant volatiles via jasmonic acid signaling. Plant, Cell and Environment 36 (2013) 393–404. doi: 10.1111/j.1365-3040.2012.02581.x. HTML Link
  31. M. Kos, B. Houshyani, A. Overeem, H.J. Bouwmeester, B.T. Weldegergis, J.J. A. van Loon, M. Dicke & L.E.M. Vet. Genetic engineering of plant volatile terpenoids: effects on a herbivore, a predator and a parasitoid. Pest Management Science 69 (2013) 302–311. doi: 10.1002/ps.3391. HTML Link.
  32. E.H. Poelman, M. Bruinsma, F. Zhu, B.T. Weldegergis, A.E. Boursault, Y. Jongema, J.J.A. van Loon, L.E.M. Vet, J.A. Harvey & M. Dicke. Hyperparasitoids use Herbivore-Induced Plant Volatiles to locate their Parasitoid host. PLoS Biology 2012, 10(11): e1001435. doi:10.1371/journal.pbio.1001435. HTML Link.
  33. R. Soler, A. Pineda, Y. Li, C. Ponzio, J.J.A. van Loon, B.T. Weldegergis & M. Dicke. Neonates know better than their mothers when selecting a host-plant. Oikos 121 (2012) 1923–1934. doi: 10.1111/j.1600-0706.2012.20415.x. HTML Link
  34. N.E. Fatouros, D. Lucas-Barbosa, B.T. Weldegergis, F.G. Pashalidou, J.J.A. van Loon, M. Dicke, J.A. Harvey, R. Gols & M.E. Huigens. Plant volatiles induced by herbivore egg deposition affect insects of different trophic levels. PLoS ONE 2012, 7(8): e43607. doi:10.1371/journal.pone.0043607. HTML Link.
  35. M. Kos, B. Houshyani, B.B. Achhami, R. Wietsma, R. Gols, B.T. Weldegergis, P. Kabouw, H.J. Bouwmeester, L.E.M. Vet, M. Dicke & J.J.A. van Loon. Herbivore-mediated effects of Glucosinolates on different natural enemies of a specialist Aphid. Journal of Chemical Ecology 38 (2012) 100–115. doi:10.1007/s10886-012-0065-2. HTML Link.
  36. B.T. Weldegergis, A.M. Crouch, T. Górecki & A. de Villiers. Solid phase extraction in combination with comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry for the detailed investigation of volatiles in South African red wines. Analytica Chimica Acta 701 (2011) 98–111. dio:10.1016/j.aca.2011.06.006. HTML Link.
  37. B.T. Weldegergis, A. de Villiers, C. McNeish, S. Seethapathy, A. Mostafa, T. Górecki & A.M. Crouch. Characterization of volatile components of Pinotage wines using comprehensive twodimensional gas chromatography coupled to time-of-flight mass spectrometry (GC Å~ GC-TOFMS). Food Chemistry 129 (2011) 188–199. doi:10.1016/j.foodchem.2010.11.157. HTML Link.
  38. B.T. Weldegergis, A. de Villiers & Andrew M. Crouch. Chemometric investigation of the volatile content of young South African wines. Food Chemistry 128 (2011) 1100–1109. doi:10.1016/j.foodchem.2010.09.100. HTML Link.
  39. B.T. Weldegergis & A.M. Crouch. Analysis of volatiles in Pinotage wines by stir bar sorptive extraction and chemometric profiling. Journal of Agricultural and Food Chemistry 56 (2008) 10225–10236. dio:10.1021/jf8015706. HTML Link.
  40. B.T. Weldegergis, A.G.J. Tredoux & A.M. Crouch. Application of a headspace sorptive extraction method for the analysis of volatile components in South African wines. Journal of Agricultural and Food Chemistry 55 (2007) 8696–8702. dio:10.1021/jf071554p. HTML Link.