Isoprene emission-free poplars - a chance to reduce the impact from poplar plantations on the atmosphere

Autor: Andrea Polle, Guanwu Zhou, Mudawi Elobeid, Ina Zimmer, Katja Behnke, Dennis Janz, Jörg-Peter Schnitzler, Nicolas Brüggemann, Rüdiger Grote
Jazyk: angličtina
Rok vydání: 2011
Předmět:
0106 biological sciences
non-isoprene emitting
010504 meteorology & atmospheric sciences
Physiology
Biomass
Plant Science
01 natural sciences
Lignin
chemistry.chemical_compound
chemistry [Atmosphere]
physiology [Herbivory]
Spectroscopy
Fourier Transform Infrared
Photosynthesis
metabolism [Cellulose]
Transpiration
2. Zero hunger
growth & development [Populus]
Carbon Isotopes
metabolism [Carbon Dioxide]
food and beverages
Plants
Genetically Modified
Wood
Populus × canescens
analysis [Butadienes]
ddc:580
Populus
Carbon dioxide
metabolism [Carbon]
outdoor conditions
Seasons
analysis [Hemiterpenes]
metabolism [Lignin]
analysis [Volatile Organic Compounds]
Growing season
physiology [Plant Transpiration]
modelling
Hemiterpenes
Air Pollution
Pentanes
Botany
biomass production
Populus canescens
Butadienes
Computer Simulation
Herbivory
Cellulose
Isoprene
Crosses
Genetic
0105 earth and related environmental sciences
Volatile Organic Compounds
genetics [Populus]
Atmosphere
fungi
Primary production
Plant Transpiration
15. Life on land
Carbon Dioxide
Carbon
chemistry
Agronomy
13. Climate action
Environmental science
prevention & control [Air Pollution]
analysis [Pentanes]
isoprene
010606 plant biology & botany
Zdroj: New Phytologist
New Phytol. 194, 70-82 (2012)
The new phytologist 194, 70-82 (2012). doi:10.1111/j.1469-8137.2011.03979.x
ISSN: 0028-646X
DOI: 10.1111/j.1469-8137.2011.03979.x
Popis: 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.
Databáze: OpenAIRE
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