Host-selection behavior of nymphs of Vanduzeea arquata and Enchenopa binotata discrimination of whole twigs, leaf extracts and sap exudates
dc.contributor.author | Kiss, Agnes | en_US |
dc.date.accessioned | 2006-09-08T20:38:11Z | |
dc.date.available | 2006-09-08T20:38:11Z | |
dc.date.issued | 1984-01 | en_US |
dc.identifier.citation | Kiss, Agnes; (1984). "Host-selection behavior of nymphs of Vanduzeea arquata and Enchenopa binotata discrimination of whole twigs, leaf extracts and sap exudates." Entomologia Experimentalis et Applicata 36(2): 169-175. <http://hdl.handle.net/2027.42/42709> | en_US |
dc.identifier.issn | 0013-8703 | en_US |
dc.identifier.issn | 1570-7458 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/42709 | |
dc.description.abstract | The host-discrimination behavior of two species of phloem-feeding membracid nymphs was examined through pair-wise choice experiments using whole twigs, leaf extracts and sap exudates. Both species have restricted host ranges in the field: Vanduzeea arquata is monophagous, while Enchenopa binotata may best be considered narrowly oligophagous in that it represents a complex of sympatric, reproductively isolated populations each associated with a different species or genus of plants. Nymphs of both species settled preferentially on twigs of their respective host plants but those of V. arquata showed absolute discrimination while those of E. binotata selected the alternative twigs a small percentage of the time. Vanduzeea arquata nymphs also showed a greater sensitivity to plant extracts, as a larger proportion of their responses, both positive and negative, were significant. Leaf extracts of all plants tested discouraged ingestion but not probing, and most nymphs exhibited a positive probing response to the extracts of their respective hosts. Only the sap exudates of the hop-tree ( Ptelea trifoliata ) inhibited ingestion. Enchenopa binotata nymphs from the population associated with the hop-tree also showed a negative response to these extracts but only at a higher concentration. Water-soluble quaternary alkaloids are the secondary metabolites of the hop-tree most likely to be present in the extracts used in this study and in the phloem sap of the plant. They also occur in the honeydew of nymphs feeding on this species. Because these compounds are known to be cytotoxic, it is likely that hop-tree E. binotata nymphs possess physiological specializations to detoxify or tolerate them. Les larves de Vanduzeea arquata Say et de 3 membres du complexe Enchenopa binotata Say préfèrent légèrement plus les pousses des espèces de leurs hôtes respectifs dans des choix binaires. Les réponses (alimentation et sondage) des larves à des extraits de feuille et à des exsudats de sève d'espèces de plantes hôtes ou non ont été examinées avec des sachets à couche simple ou double de parafilm. Les extraits de feuille de plante hôte stimulaient le sondage par beaucoup de larves. Les extraits de feuille et de sève de Ptelea trifoliata (Rutacées) inhibaient la prise de nourriture des larves de toutes les espèces, mais l'effet dissuadant était moins prononcé sur les larves des espèces d' Enchenopa associées à cet arbre que sur les autres. La présence d'alcaloïdes quaternaires dans le phloem de cet arbre peut dissuader les autres larves de membracides de s'alimenter sur cette essence, mais ces substances ont été décelées dans les larves d' Enchenopa et dans leur miellat. Des glucosides flavonoïdes, présents dans les extraits de feuille et les exsudats de sèvé de Robinia pseudoacacia (Fabacées) et de Celastrus scandens et C. orbiculatus (Célastracées), n'ont pas modifié significativement le comportement alimentaire des larves d' Enchenopa , mais peuvent avoir influencé celui des larves de V. arquata . Les larves d' Enchenopa présentaient une plus faible aptitude que les larves de V. arquata à choisir leur hôte; leur tolérance relative pour des espèces non hôtes peut être liée à la spéciation en fonction de la filiation de végétaux qui semble avoir eu lieu dans ce groupe. | en_US |
dc.format.extent | 576519 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers; Dr. W. Junk Publishers ; Springer Science+Business Media | en_US |
dc.subject.other | Life Sciences | en_US |
dc.subject.other | Animal Systematics/Taxonomy/Biogeography | en_US |
dc.subject.other | Host-discrimination | en_US |
dc.subject.other | Homoptera | en_US |
dc.subject.other | Membracidae | en_US |
dc.subject.other | Vanduzeea Arquata | en_US |
dc.subject.other | Enchenopa Binotata | en_US |
dc.subject.other | Secondary Compounds | en_US |
dc.subject.other | Alkaloids | en_US |
dc.subject.other | Phloem Sap | en_US |
dc.subject.other | Hop-tree Ptelea Trifoliata | en_US |
dc.title | Host-selection behavior of nymphs of Vanduzeea arquata and Enchenopa binotata discrimination of whole twigs, leaf extracts and sap exudates | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Division of Biological Sciences, University of Michigan, 48109, Ann Arbor, MI, USA; Agricultural Production Division, Office of Agriculture, Bureau for Science and Technology, Agency for International Development, Room 413 SA-18, 20523, Washington, DC, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/42709/1/10667_2004_Article_BF00569958.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/BF00569958 | en_US |
dc.identifier.source | Entomologia Experimentalis et Applicata | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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