Metadata language
Powiązania między owadamii roślinami - badania nad mechanizmami odporności roślin na żerowanie mszyc
Subtitle:Insect-plant relationships: studies on plant resistance mechanisms against aphid feeding
Creator: Publisher:Komitet Biotechnologii PAN ; Instytut Chemii Bioorganicznej PAN
Date issued/created: Subject and Keywords: Abstract:New methods of insect pest management include the application and development of the existing natural resistance mechanisms, which protect plantsagainst insect feeding. Aphids (Homoptera) have the exceptionally modified mouthparts, the piercing-sucking type, which enable feeding on plant sap directlyfrom the sieve elements of the phloem tissue. Most aphid species are oligophagous; i. e. their host plant range is restricted to selected related plant species.The crucial step in host-plant recognition by these insects is the gustatory examination of the plant sap. Aphids do not possess external contact chemoreceptors, so this step requires stylet penetration of the plant and the subsequentsap sampling. The effect of chemical properties of a plant, and in fact the acceptability of a plant to an aphid, can be investigated directly by using the electronic monitoring of stylet penetration (EPG = Electrical Penetration Graph) technique. In this system the aphid and the plant are made parts of an electric circuit and any changes in electric characteristic of the circuit express aphid activities, such as: stylet penetration of peripheral plant tissues, feeding on phloemsap, salivation into phloem elements, e.t.c. The duration and frequency oftheseactivities can be used as indicators of plant suitability. The existence and tissular localisation of factors determining the level of plant resistance againstaphids can also be derived from these data.
Relation:Biotechnologia, vol.50, 3 (2000)-.
Volume: Issue: Start page: End page: Resource type: Detailed Resource Type: Format: Resource Identifier: Source:Biblioteka Instytutu Chemii Bioorganicznej PAN
Language: Language of abstract: Temporal coverage: Rights:Licencja Creative Commons Uznanie autorstwa-Na tych samych warunkach 4.0
Terms of use: Digitizing institution:Instytut Chemii Bioorganicznej Polskiej Akademii Nauk
Original in:Instytut Chemii Bioorganicznej Polskiej Akademii Nauk
Projects co-financed by: Access: