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Plant Physiol Biochem

Title:		Outburst of senescence-related VOC emissions from a bioenergy poplar plantation
Author(s):		Portillo-Estrada M; Ariza-Carricondo C; Ceulemans R;
Address:		"Centre of Excellence PLECO, Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Belgium. Electronic address: Miguel.PortilloEstrada@uantwerpen.be. Centre of Excellence PLECO, Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Belgium. Electronic address: Cristina.ArizaCarricondo@uantwerpen.be. Centre of Excellence PLECO, Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Belgium; CzechGlobe, SustES, Belidla 4a, 603 00, Brno, Czech Republic. Electronic address: Reinhart.Ceulemans@uantwerpen.be"
Journal Title:		Plant Physiol Biochem
Year:		2020
Volume:		20200120
Issue:
Page Number:		324 - 332
DOI:		10.1016/j.plaphy.2020.01.024
ISSN/ISBN:		1873-2690 (Electronic) 0981-9428 (Linking)
Abstract:		"Leaf senescence is a catabolic process that emits volatile organic compounds (VOCs). In densely planted monocultures these VOC emissions occur in outbursts that might be relevant for the local air quality since these VOCs are typically oxygenated. The VOC emissions of a high-density poplar (Populus) bioenergy plantation were monitored along with meteorological parameters, CO(2) and H(2)O exchanges, canopy greenness, and leaf area index during the second half of the year 2015. The emissions of 25 VOCs peaked at the beginning of September, coinciding with the onset of senescence. Together these VOC emissions amounted to a total of 2.85 mmol m(-2), translated into 98.3 mg C m(-2). The emission peak was mainly composed of oxygenated VOCs as methanol, acetic acid, and lipoxygenase products that are all typical for catabolic processes. So, the senescence process of the poplar plantation was very well reflected in the peak of VOC emissions"
Keywords:		*Aging/metabolism Air Pollutants/analysis/metabolism Plant Leaves/metabolism *Populus/metabolism *Volatile Organic Compounds/analysis/metabolism Eddy covariance Leaf greenness Leaf senescence Lipoxygenase products Methanol emission Net ecosystem exchange;
Notes:		"MedlinePortillo-Estrada, Miguel Ariza-Carricondo, Cristina Ceulemans, Reinhart eng France 2020/02/01 Plant Physiol Biochem. 2020 Mar; 148:324-332. doi: 10.1016/j.plaphy.2020.01.024. Epub 2020 Jan 20"