NDLI: Impact of flooding and drought conditions on the emission of volatile organic compounds of Quercus robur and Prunus serotina

Content Provider	Springer Nature Link
Author	Bourtsoukidis, E. Kawaletz, H. Radacki, D. Schütz, S. Hakola, H. Hellén, H. Mölder, I. Ammer, C. Bonn, Boris
Copyright Year	2013
Abstract	We conducted measurements with oak (Quercus robur L.) and black cherry (Prunus serotina Ehrh.) seedlings to investigate their volatile organic compound (VOC) emission behavior to flooding and drought conditions. A novel cuvette enclosure approach was applied on 18 individuals and emission rates were derived using proton transfer reaction-mass spectrometry (PTR-MS) and gas chromatography–mass spectrometry (GC–MS) techniques. Complementary chlorophyll fluorescence and CO2 uptake measurements were performed for all of the samples. Q. robur seedlings remained unaffected by flood. On the contrary, P. serotina seedlings reduced their chlorophyll fluorescence yield by 34.5 ± 4.1 % and their CO2 uptake by 67.5 ± 10.5 %. These observations along with the highest acetaldehyde emissions recorded indicate strong susceptibility to water stress. Drought had a similar impact on both species that reduced chlorophyll fluorescence yield, CO2 uptake, and the emission rates of most VOC. Nevertheless, isoprene was found to be emitted more than 20 times stronger by Q. robur seedlings under all treatments. In general, most VOC emissions increased with soil water availability displaying an exponential trend for acetaldehyde and methanol and a linear one for the sum of mono- and sesquiterpenes. Only methyl salicylate was released about two times stronger from oaks under drought conditions in comparison to wet conditions. Considering their VOC emission behavior, Q. robur seedlings appear to tolerate flood much better than P. serotina and thus it is likely to have a competing advantage under these conditions.
Starting Page	193
Ending Page	204
Page Count	12
File Format	PDF
ISSN	09311890
Journal	Trees
Volume Number	28
Issue Number	1
e-ISSN	14322285
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-10-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	VOC emissions Flood Drought Invasive Competitive species Forestry Plant Sciences Agriculture Plant Anatomy/Development Plant Pathology Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Ecology Physiology Plant Science Forestry

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