Web of Science: 8 citations, Scopus: 10 citations, Google Scholar: citations
Strong induction of minor terpenes in Italian cypress, Cupressus sempervirens, in response to infection by the fungus Seiridium cardinale.
Achotegui Castells, Ander (Centre de Recerca Ecològica i Aplicacions Forestals)
Danti, Roberto (Istituto per la Protezione Sostenibile delle Piante)
Llusià Benet, Joan (Centre de Recerca Ecològica i Aplicacions Forestals)
Della Rocca, Gianni (Istituto per la Protezione Sostenibile delle Piante)
Barberini, Sara (Istituto per la Protezione Sostenibile delle Piante)
Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)

Date: 2015
Abstract: Seiridium cardinale, the main fungal pathogen responsible for cypress bark canker, is the largest threat to cypresses worldwide. The terpene response of canker-resistant clones of Italian cypress, Cupressus sempervirens, to two differently aggressive isolates of S. cardinale was studied. Phloem terpene concentrations, foliar terpene concentrations, as well as foliar terpene emission rates were analyzed 1, 10, 30, and 90 days after artificial inoculation with fungal isolates. The phloem surrounding the inoculation point exhibited de novo production of four oxygenated monoterpenes and two unidentified terpenes. The concentrations of several constitutive mono- and diterpenes increased strongly (especially α- thujene, sabinene, terpinolene, terpinen-4-ol, oxygenated monoterpenes, manool, and two unidentified diterpenes) as the infection progressed. The proportion of minor terpenes in the infected cypresses increased markedly from the first day after inoculation (from 10 % in the control to 30–50 % in the infected treatments). Foliar concentrations showed no clear trend, but emission rates peaked at day 10 in infected trees, with higher δ-3-carene (15-fold) and total monoterpene (10-fold) emissions than the control. No substantial differences were found among cypresses infected by the two fungal isolates. These results suggest that cypresses activate several direct and indirect chemical defense mechanisms after infection by S. cardinale.
Note: Número d'acord de subvenció MINECO/CGL2013-48074-P
Note: Número d'acord de subvenció AGAUR/2014/SGR-274
Note: Número d'acord de subvenció EC/FP7/610028
Note: Número d'acord de subvenció EC/H2020/FP0903
Note: Altres ajuts: Project CypFire EC/2G-MED09-070
Rights: Tots els drets reservats
Language: Anglès.
Document: article ; recerca ; acceptedVersion
Subject: VOCs ; Cypress bark canker ; Sabinene ; Manool ; Oxygenated monoterpenes ; De novo
Published in: Journal of chemical ecology, Vol. 41 Issue 3 (March 2015) , p. 224-243, ISSN 0098-0331

DOI: 10.1007/s10886-015-0554-1

40 p, 1.8 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Research articles
Articles > Published articles

 Record created 2015-03-19, last modified 2019-02-03

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