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Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth

Ninkovic, Velemir and Åhman, Inger (2009). Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth. Euphytica. 169:2, 177-185
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Official URL: http://dx.doi.org/10.1007/s10681-009-9918-3

Abstract

Nineteen genotypes of Hordeum vulgare were characterized as partially resistant or susceptible regarding growth of the bird cherry - oat aphid (Rhopalosiphum padi L.). These genotypes were treated with volatiles from undamaged plants of barley cultivar Alva. Aphid host acceptance (AHA) was significantly affected in seven genotypes, and the magnitude of the effect was positively correlated with aphid growth (AG) in a resistance screening test. Changes in AHA induced by volatiles from the same genotype were also positively correlated with AG. All genotypes were tested as inducers with cultivar Kara as the receiver of volatiles. Five genotypes induced significant reductions in AHA of Kara. The results show that aphids are able to detect changes in responding plants induced by volatiles from another cultivar. Plant volatile interactions may thus be a component of induced resistance to aphids. These interactions could influence the results of experiments used to select for insect-resistant plants in plant breeding programmes.

Authors/Creators:Ninkovic, Velemir and Åhman, Inger
Title:Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth
Series/Journal:Euphytica (0014-2336)
Year of publishing :2009
Volume:169
Number:2
Page range:177-185
Publisher:Springer
ISSN:0014-2336
Language:English
Publication Type:Journal article
Refereed:Yes
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant breeding
Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant and forest protection
Keywords:Rhopalosiphum padi, aphids, Hordeum, barley, allelobiosis, host resistance, plant breeding
URN:NBN:urn:nbn:se:slu:epsilon-10-3
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-10-3
ID Code:4481
Department:(LTJ, LTV) > Agrosystems (until 121231)
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: Katarina Evengård
Deposited On:08 Jan 2010 00:00
Metadata Last Modified:02 Dec 2014 10:31

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