| Title: | Isoprene emission-free poplars--a chance to reduce the impact from poplar plantations on the atmosphere |
| Author(s): | Behnke K; Grote R; Bruggemann N; Zimmer I; Zhou G; Elobeid M; Janz D; Polle A; Schnitzler JP; |
| Address: | "Helmholtz Zentrum Munchen, Institute of Biochemical Plant Pathology, Research Unit Environmental Simulation (EUS), Ingolstadter Landstrasse 1, D-85764 Neuherberg, Germany. Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research (IMK-IFU), Kreuzeckbahnstrasse 19, 82467 Garmisch-Partenkirchen, Germany. Forschungszentrum Julich, Agrosphere (IBG-3), 52425 Julich, Germany. Forest Botany and Tree Physiology, Busgen-Institute, Georg-August-University Gottingen, Busgenweg 2, 37077 Gottingen, Germany" |
| DOI: | 10.1111/j.1469-8137.2011.03979.x |
| ISSN/ISBN: | 1469-8137 (Electronic) 0028-646X (Linking) |
| Abstract: | "* Depending on the atmospheric composition, isoprene emissions from plants can have a severe impact on air quality and regional climate. For the plant itself, isoprene can enhance stress tolerance and also interfere with the attraction of herbivores and parasitoids. * Here, we tested the growth performance and fitness of Populus x canescens in which isoprene emission had been knocked down by RNA interference technology (PcISPS-RNAi plants) for two growing seasons under outdoor conditions. * Neither the growth nor biomass yield of the PcISPS-RNAi poplars was impaired, and they were even temporarily enhanced compared with control poplars. Modelling of the annual carbon balances revealed a reduced carbon loss of 2.2% of the total gross primary production by the absence of isoprene emission, and a 6.9% enhanced net growth of PcISPS-RNAi poplars. However, the knock down in isoprene emission resulted in reduced susceptibility to fungal infection, whereas the attractiveness for herbivores was enhanced. * The present study promises potential for the use of non- or low-isoprene-emitting poplars for more sustainable and environmentally friendly biomass production, as reducing isoprene emission will presumably have positive effects on regional climate and air quality" |
| Keywords: | "Air Pollution/*prevention & control Atmosphere/*chemistry Biomass Butadienes/*analysis Carbon/metabolism Carbon Dioxide/metabolism Carbon Isotopes Cellulose/metabolism Computer Simulation Crosses, Genetic Hemiterpenes/*analysis Herbivory/physiology Lignin;" |
| Notes: | "MedlineBehnke, Katja Grote, Rudiger Bruggemann, Nicolas Zimmer, Ina Zhou, Guanwu Elobeid, Mudawi Janz, Dennis Polle, Andrea Schnitzler, Jorg-Peter eng Research Support, Non-U.S. Gov't England 2011/12/07 New Phytol. 2012 Apr; 194(1):70-82. doi: 10.1111/j.1469-8137.2011.03979.x. Epub 2011 Dec 5" |
