Glandular trichomes on the exotic Solanum sisymbriifolium Lamarck (Solanaceae): effective deterrents against an indigenous South African herbivore

Hill, Martin P; Hulley, Patrick E; Allsopp, J; van Harmelen, G

Title: Glandular trichomes on the exotic Solanum sisymbriifolium Lamarck (Solanaceae): effective deterrents against an indigenous South African herbivore
Creator: Hill, Martin P
Creator: Hulley, Patrick E
Creator: Allsopp, J
Creator: van Harmelen, G
Subject: To be catalogued
Date Issued: 1997
Date: 1997
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/451413
Identifier: vital:75047
Identifier: https://hdl.handle.net/10520/AJA10213589_152
Description: An examination of the leaves of several native and exotic Solanum species revealed that they all possessed glandular and non-glandular trichomes. The density of glandular trichomes was, however, very much lower on the leaves of the indigenous species than on the leaves of a weed species, Solanum sisymbriifolium Lamarck, and two other South American Solanum species. This difference could have contributed to the depauperate faunas supported by the exotic species. The morphology and behaviour of an indigenous Solanum-feeding tortoise beetle, Conchyloctenia tigrina Oliver (Coleoptera: Chrysomelidae), and a South American tortoise beetle, Gratiana spadicea (IQug) (Coleoptera: Chrysomelidae), were compared. The study revealed that while the exudate produced by the glandular trichomes afforded S. sisymbriifolium a level of resistance to C. tigrina, it is probably only one of the factors limiting the recruitment of indigenous herbivores onto S. sisymbriifolium.
Format: 10 pages
Format: pdf
Language: English
Relation: African Entomology
Relation: Hill, MP, Hulley, PE Allsopp, J. and Van Harmelen, G., 1997. Glandular trichomes on the exotic Solanum sisymbriifolium Lamarck (Solanaceae): effective deterrents against an indigenous South African herbivore. African Entomology, 5(1), pp.41-50
Relation: African Entomology volume 5 number 1 41 50 1997 2254-8854
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the African Entomology Statement (https://www.africanentomology.com/)

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