Subtitle:

Insect-plant relationships: studies on plant resistance mechanisms against aphid feeding

Publisher:

Committee on Biotechnology PAS ; Institute of Bioorganic Chemistry PAS

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:

50

Issue:

3

Start page:

69

End page:

80

Detailed Resource Type:

Article

Format:

application/pdf

Resource Identifier:

0860-7796 ; oai:rcin.org.pl:140385 ; IChB B-46

Source:

Library of Institute of Bioorganic Chemistry PAS

Language:

pol

Language of abstract:

eng

Temporal coverage:

1988-2010

Rights:

Creative Commons Attribution BY-SA 4.0 license

Terms of use:

Copyright-protected material. [CC BY-SA 4.0] May be used within the scope specified in Creative Commons Attribution BY-SA 4.0 license, full text available at:

Digitizing institution:

Institute of Bioorganic Chemistry of the Polish Academy of Science

Original in:

Institute of Bioorganic Chemistry of the Polish Academy of Science

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Access:

Open