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- W3033335492 endingPage "100082" @default.
- W3033335492 startingPage "100082" @default.
- W3033335492 abstract "Increasing temperature and atmospheric [CO2] can change plant VOC emissions, thereby providing a possible feedback to climate change by altering particle and greenhouse gas formation. While evidence gathered on isoprene emission generally indicated an inhibitory effect of elevated CO2 on emission at moderate temperature, it is unclear whether the emissions of other volatiles respond in a similar way. In a greenhouse study, we grew Artemisia annua plants under two [CO2] regimes (400/800 ppm) combined with two temperature regimes (25/15 and 30/20 °C) and determined emissions at two assay [CO2] (400/800 ppm) combined with two assay temperatures (30/37 °C). Foliar VOC concentrations were unaffected by growth conditions and resembled emissions consisting mainly of monoterpenes (>92%) and sesquiterpenes (>7%). Mean emission rates determined at 30 °C and 400 ppm [CO2] ranged between 1.2 and 2.5 μg g−1h−1 (11–26 ng m−2s−1) with lowest values observed for elevated-[CO2]-grown plants. However, this apparent negative effect of growth [CO2] was compensated by increased plant growth. Irrespective of growth conditions, doubling assay [CO2] significantly reduced emissions at 37 °C by about 30% and had no effect at 30 °C. Emissions always increased on the increase in assay temperature, with monoterpenes responding more strongly than sesquiterpenes (mean %-increase of 17.5 and 12.5 °C-1). Our results suggest that the future evolution of VOC release from A. annua depends mainly on the antagonistic emission responses to temperature and [CO2], while long-term acclimations play a minor role." @default.
- W3033335492 created "2020-06-12" @default.
- W3033335492 creator A5005423746 @default.
- W3033335492 creator A5033996612 @default.
- W3033335492 date "2020-10-01" @default.
- W3033335492 modified "2023-10-05" @default.
- W3033335492 title "Do future climate conditions change volatile organic compound emissions from Artemisia annua? Elevated CO2 and temperature modulate actual VOC emission rate but not its emission capacity" @default.
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- W3033335492 doi "https://doi.org/10.1016/j.aeaoa.2020.100082" @default.
- W3033335492 hasPublicationYear "2020" @default.