English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Plagiodera versicolora  Laicharting is a highly damaging leaf beetle foraging on willow leaves. In willow germplasm collections, observation has shown that  Salix suchowensis  Cheng was severely foraged by this leaf beetle while  Salix triandra  L. was damage free or only slightly damaged. Results of olfactometer bioassays show that the headspace volatiles from leaves of  S. triandra  significantly repelled adult beetles, suggesting that this species produces volatile repellents against  P. versicolora. S. suchowensis  had no effect on the beetles. Gas chromatography-mass spectrometry was carried out to profile the headspace volatile organic compounds and 23 compounds from leaves of the alternate species in significantly different concentrations were detected. The effects of 20 chemical analogs on host discrimination were examined. Olfactory response to these chemicals showed that  o -cymene, a  S. suchowensis  specific constituent, significantly attracted adult  P. versicolora . In contrast,  cis -3-hexenyl acetate, a constituent concentrated more in  S. triandra  than in  S. suchowensis , significantly repelled beetles. Mixing  o -cymene and  cis -3-hexenyl acetate in comparable concentrations as in the volatiles of  S. suchowensis  demonstrated that the latter could mask the attracting effect of the former, causing a neutral response by adult beetles to leaves of  S. suchowensis  against clean air. In addition, chemical analogs have the same effect as plants when resembling volatile organic compounds in real samples. Two volatile metabolites were detected triggering host discrimination by one of the most damaging insect pests to host and non-host willows. The two metabolites are of considerable potential for use as olfactory signs in managing the beetles.

Volatile metabolites of willows determining host discrimination by adult Plagiodera versicolora