DOI: 10.1016/j.foreco.2013.11.014
Scopus记录号: 2-s2.0-84890070130
论文题名: Exploiting jasmonate-induced responses for field protection of conifer seedlings against a major forest pest, Hylobius abietis
作者: Zas R. ; Björklund N. ; Nordlander G. ; Cendán C. ; Hellqvist C. ; Sampedro L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 313 起始页码: 212
结束页码: 223
语种: 英语
英文关键词: Forest pest
; Growth costs
; Hylobius abietis
; Induced defence
; Methyl jasmonate (MJ)
; Seedling protection
Scopus关键词: Forest pest
; Hylobius abietis
; Induced defence
; Methyl jasmonate
; Seedling protections
; Agriculture
; Animals
; Chemical compounds
; Reforestation
; chemical defense
; cost-benefit analysis
; environmental conditions
; forest ecosystem
; growth response
; herbivory
; mortality
; pest damage
; pest species
; seedling
; signaling
; Agriculture
; Animals
; Chemical Compounds
; Costs
; Growth
; Reforestation
; Spain
; Sweden
英文摘要: Herbivore damage commonly initiates an increased synthesis of chemical defensive compounds in attacked plants. Such induced defences are a vital part of plant defence systems, but when herbivore pressure is high, as frequently occurs in man-made ecosystems such as agricultural and forest plantations, plants may suffer considerable damage before adequate induced defences build up. To prepare the plants for such conditions their induced defence may be artificially triggered by the exogenous application of different phytohormones involved in damage signalling. This method is already employed in agriculture but within forestry systems it has so far been restricted to promising laboratory results. The pine weevil, Hylobius abietis, causes damage by feeding on the bark of young conifer plants and it is one of the main threats to successful regeneration in the Palaearctic region. Here we present results from a large scale field experiment where we triggered the induced defences of conifer seedlings using exogenous application of the chemical elicitor methyl jasmonate. To enhance the generality of the results different species were planted under extremely different environmental conditions; Maritime pine and Monterrey pine in Spain, and Scots pine and Norway spruce in Sweden. Weevil damage, chemical defences, and seedling growth were studied during the two growing periods following planting. In general, treated plants showed increased quantitative defences, and were less attacked, less wounded, less girdled and showed lower mortality rates than their untreated counterparts. Effects were mostly dose dependent, although some interactive effects with tree species were observed. The treatment initially caused a growth reduction but it was later compensated by the benefit, in terms of growth, of being less damaged. The measures that are currently taken to protect forest plantations against this harmful pest all around Europe have enormous economic costs and cause important environmental hazards. Elicitation of inducible defences in seedlings in the nursery appears to be an attractive alternative to these measures. To our knowledge, this is the first field study that explores the applicability of chemical elicitors of induced defences as a way to protect forest plantations against biotic threats. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66157
Appears in Collections: 影响、适应和脆弱性
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作者单位: Misión Biológica de Galicia (MBG-CSIC), Apdo. 28, 36080 Pontevedra, Galicia, Spain; Department of Ecology, Swedish University of Agricultural Sciences, Box 7044, SE-750 07 Uppsala, Sweden
Recommended Citation:
Zas R.,Björklund N.,Nordlander G.,et al. Exploiting jasmonate-induced responses for field protection of conifer seedlings against a major forest pest, Hylobius abietis[J]. Forest Ecology and Management,2014-01-01,313