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dc.contributor.authorHanley, MEen
dc.contributor.authorShannon, RWRen
dc.contributor.authorLemoine, DGen
dc.contributor.authorSandey, Ben
dc.contributor.authorNewland, PLen
dc.contributor.authorPoppy, GMen
dc.date.accessioned2018-11-22T14:39:49Z
dc.date.issued2018-11-30en
dc.identifier.issn0305-7364en
dc.identifier.urihttp://hdl.handle.net/10026.1/12846
dc.description.abstract

Background and Aims: Seedling herbivory is an important selective filter in many plant communities. The removal of preferred food plants by both vertebrate and, more commonly, invertebrate herbivores can destroy entire seedling cohorts, and consequently dictate plant community assembly. Nevertheless, our understanding of how and why some seedlings are more prone to herbivore attack than their neighbours remains limited. For seedlings, where even minor tissue damage is fatal, avoiding contact with herbivores is probably advantageous and, on this basis, volatile organic compounds (VOCs) are strong candidates to fulfil a primary defensive role. Methods: We quantified seedling selection by snails (Cornu aspersum) for 14 common, European grassland species. Seedling acceptability was subsequently compared with species-specific expression of constitutive secondary defence metabolites (CSDMs), and VOCs to determine their relative influence on seedling selection. Results: We found no relationship between seedling acceptability and CSDMs, but seedling selection was strongly associated with VOC profiles. Monoterpenes (specifically β-ocimene) were identified as likely attractants, while green leaf volatiles (GLVs) (3-hexen-1-ol acetate) were strongly associated with low seedling acceptability. Conclusions: By elucidating a relationship between VOCs and seedling acceptability, we contradict a long-held, but poorly tested, assumption that seedling selection by herbivores in (semi-)natural plant communities centres on CSDMs. Instead, our results corroborate recent work showing how GLVs, including 3-hexen-1-ol acetate, deter crop seedling selection by molluscs. Although our failure to establish any early-ontogenetic relationship between VOCs and CSDMs also suggests that the former do not 'advertise' possession of the latter, we nevertheless reveal the role that VOCs play in defending seedlings against herbivory before lethal damage occurs.

en
dc.language.isoenen
dc.publisherOxford University Press (OUP)en
dc.titleRiding on the wind: volatile compounds dictate selection of grassland seedlings by snails.en
dc.typeJournal Article
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/30418479en
plymouth.journalAnnals of Botanyen
dc.identifier.doi10.1093/aob/mcy190en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/00 Groups by role
plymouth.organisational-group/Plymouth/00 Groups by role/Academics
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science
dcterms.dateAccepted2018-10-04en
dc.rights.embargodate2019-11-10en
dc.identifier.eissn1095-8290en
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.1093/aob/mcy190en
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
rioxxterms.licenseref.startdate2018-11-30en
rioxxterms.typeJournal Article/Reviewen


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