TY  - JOUR
AU  - Behnke, K.
AU  - Grote, R.
AU  - Brüggemann, N.
AU  - Zimmer, I.
AU  - Zhou, G.
AU  - Elobeid, M.
AU  - Janz, D.
AU  - Polle, A.
AU  - Schnitzler, J.P.
TI  - Isoprene emission-free poplars - a chance to reduce the impact from poplar plantations on the atmosphere
JO  - The new phytologist
VL  - 194
SN  - 0028-646X
CY  - Oxford [u.a.]
PB  - Wiley-Blackwell
M1  - PreJuSER-21188
SP  - 70 - 82
PY  - 2012
N1  - We are grateful to S. Wolfarth (University of Gottingen) and C. Kettner (University of Gottingen) for excellent technical assistance. We would like to thank G. Bahnweg (BIOP, Helmholtz Centre Munich) and P. Faubert (EUS, Helmholtz Centre Munich) for critical comments on the manuscript. This study was financially supported by the German Science Foundation (DFG; Schnitzler SCHN653/4 and Polle PO362/13) within the German joint research group 'Poplar-A model to address tree-specific questions' (FOR496) and by the European Commission within the Seventh Framework Programme for Research, Project Energypoplar (FP7-211917). G.W.Z. thanks the DAAD-CSC (German Academic Exchange Service - China Scholarship Council) Joint PhD scholarship programme and M. E. the University of Khartoum for providing PhD scholarships.
AB  - • 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 × 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.
KW  - Air Pollution: prevention & control
KW  - Atmosphere: chemistry
KW  - Biomass
KW  - Butadienes: analysis
KW  - Carbon: metabolism
KW  - Carbon Dioxide: metabolism
KW  - Carbon Isotopes
KW  - Cellulose: metabolism
KW  - Computer Simulation
KW  - Crosses, Genetic
KW  - Hemiterpenes: analysis
KW  - Herbivory: physiology
KW  - Lignin: metabolism
KW  - Pentanes: analysis
KW  - Photosynthesis
KW  - Plant Transpiration: physiology
KW  - Plants, Genetically Modified
KW  - Populus: genetics
KW  - Populus: growth & development
KW  - Seasons
KW  - Spectroscopy, Fourier Transform Infrared
KW  - Volatile Organic Compounds: analysis
KW  - Wood
KW  - Butadienes (NLM Chemicals)
KW  - Carbon Isotopes (NLM Chemicals)
KW  - Hemiterpenes (NLM Chemicals)
KW  - Pentanes (NLM Chemicals)
KW  - Volatile Organic Compounds (NLM Chemicals)
KW  - Carbon Dioxide (NLM Chemicals)
KW  - Carbon (NLM Chemicals)
KW  - isoprene (NLM Chemicals)
KW  - Cellulose (NLM Chemicals)
KW  - Lignin (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:22142198
UR  - <Go to ISI:>//WOS:000300719400010
DO  - DOI:10.1111/j.1469-8137.2011.03979.x
UR  - https://juser.fz-juelich.de/record/21188
ER  -