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Constitutive versus heat and biotic stress induced BVOC emissions in Pseudotsuga menziesii

dc.contributor.authorJoo, E.
dc.contributor.authorDewulf, J.
dc.contributor.authorAmelynck, C.
dc.contributor.authorSchoon, N.
dc.contributor.authorPokorska, O.
dc.contributor.authorSimpraga, M.
dc.contributor.authorSteppe, K.
dc.contributor.authorAubinet, M.
dc.contributor.authorVan Langenhove, H.
dc.date2011
dc.date.accessioned2016-03-29T12:43:51Z
dc.date.available2016-03-29T12:43:51Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3088
dc.descriptionInduced volatiles have been a focus of recent research, as not much is known of their emission behavior or atmospheric contribution. BVOC emissions were measured from Pseudotsuga menziesii saplings under natural environmental conditions, using a dynamic branch enclosure system and GC–MS for their analysis. We determined temperature and light dependency of the individual compounds, studied seasonality of the emissions and discuss the effect of heat stress in comparison with two specific biotic stresses that occurred naturally on the trees. A standardized emission rate of 6.8 μg g(dw)−1 h−1 for monoterpenes under stressed conditions was almost a magnitude higher than that obtained for healthy trees (0.8 ± 0.2 μg g(dw)−1 h−1), with higher beta factors characterizing the stressed trees. The response of the emissions to light intensity was different for the individual compounds, suggesting a distinct minimum light intensity to reach saturation. Heat stress changed the relative contribution of specific volatiles, with larger extent of increase of sesquiterpenes, methyl salicylate and linalool emissions compared to monoterpenes. Biotic stress kept low the emissions of sesquiterpenes, (E)-4,8-dimethyl-1,3,7-nonatriene and methylbutenol isomers, and increased the level of methyl salicylate and monoterpenes. The ratio of β-pinene/α-pinene was also found to be significantly enhanced from 1.3 to 2.4 and 3.2 for non-stressed, heat stressed and combined biotic and heat stressed, respectively.
dc.languageeng
dc.titleConstitutive versus heat and biotic stress induced BVOC emissions in Pseudotsuga menziesii
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeFagus sylvatica L
dc.subject.freeInduced VOC
dc.subject.freeMethyl salicylate
dc.subject.freePseudotsuga menziesii
dc.subject.freeSesquiterpene
dc.subject.freeForestry
dc.subject.freeIsomers
dc.subject.freeOlefins
dc.subject.freeThermal stress
dc.subject.freePlant extracts
dc.subject.free4,8 dimethyl 1,3,7 nonatriene
dc.subject.freebeta pinene
dc.subject.freebiogenic volatile organic compound
dc.subject.freelinalool
dc.subject.freemethylbutenol
dc.subject.freepinene
dc.subject.freesalicylic acid methyl ester
dc.subject.freesesquiterpene
dc.subject.freeterpene
dc.subject.freeunclassified drug
dc.subject.freevolatile organic compound
dc.subject.freeatmospheric pollution
dc.subject.freebiogenic emission
dc.subject.freeemission inventory
dc.subject.freeevergreen tree
dc.subject.freegas chromatography
dc.subject.freeheating
dc.subject.freelight intensity
dc.subject.freemass spectrometry
dc.subject.freemonoterpene
dc.subject.freesapling
dc.subject.freeseasonality
dc.subject.freeterpene
dc.subject.freevolatile organic compound
dc.subject.freearticle
dc.subject.freeatmospheric dispersion
dc.subject.freebiotic stress
dc.subject.freeDouglas fir
dc.subject.freeheat stress
dc.subject.freeisomer
dc.subject.freelight intensity
dc.subject.freemass fragmentography
dc.subject.freenonhuman
dc.subject.freepriority journal
dc.subject.freesapling
dc.subject.freeseasonal variation
dc.subject.freetemperature dependence
dc.subject.freeEmission
dc.subject.freeFagus Sylvatica
dc.subject.freeForestry
dc.subject.freeIsomers
dc.subject.freeOlefins
dc.subject.freePseudotsuga Menziesii
dc.subject.freeStresses
dc.subject.freeThermal Stress
dc.subject.freeVoc
dc.subject.freeFagus sylvatica
dc.subject.freePseudotsuga menziesii
dc.source.titleAtmospheric Environment
dc.source.volume45
dc.source.issue22
dc.source.page3655-3662
Orfeo.peerreviewedYes
dc.identifier.doi10.1016/j.atmosenv.2011.04.048
dc.identifier.scopus2-s2.0-79958032350


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