Shoot-level terpenoids emission in Norway spruce (Picea abies) under natural field and manipulated laboratory conditions
| Autor: | Emanuele Pallozzi, Kristýna Večeřová, Otmar Urban, Ilaria Lusini, Raffaela Esposito, Gabriele Guidolotti, Carlo Calfapietra, Petra Holišová |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Canopy Standard conditions for temperature and pressure BVOC Stomatal conductance Ozone 010504 meteorology & atmospheric sciences Physiology Fumigation Plant Science Stress 01 natural sciences Trees chemistry.chemical_compound Botany Genetics Climate change Picea Czech Republic 0105 earth and related environmental sciences Volatile Organic Compounds biology Terpenes Temperature Picea abies Sun-shade Carbon Dioxide biology.organism_classification chemistry Myrcene Environmental chemistry Shoot Norway spruce Monoterpenes Plant Shoots 010606 plant biology & botany |
| Zdroj: | Plant physiology and biochemistry (Paris) 108 (2016): 530–538. doi:10.1016/j.plaphy.2016.08.019 info:cnr-pdr/source/autori:Esposito Raffaela, Lusini Ilaria, Vecerova Kristýna, Holisova Petra, Pallozzi Emanuele, Guidolotti Gabriele, Urban Otmar, Calfapietra Carlo/titolo:Shoot-level terpenoids emission in Norway spruce (Picea abies) under natural field and manipulated laboratory conditions/doi:10.1016%2Fj.plaphy.2016.08.019/rivista:Plant physiology and biochemistry (Paris)/anno:2016/pagina_da:530/pagina_a:538/intervallo_pagine:530–538/volume:108 |
| DOI: | 10.1016/j.plaphy.2016.08.019 |
| Popis: | Norway spruce (Picea abies) is a strong emitter of biogenic volatile organic compounds (BVOCs). In the present study we investigated how shoot canopy position and high levels of stressors such as high temperature and ozone concentration, affect BVOC emission rates by means of in-situ and ex-situ experimental measurements. Therefore, BVOC emission from current-year spruce shoots was investigated under field and manipulated (temperature, ozone) laboratory conditions. Emitted BVOCs were sampled on desorption tubes, coupled with gas-exchange measurements of CO2 assimilation rate and stomatal conductance, and detected by gas chromatography coupled with mass spectrometry. Total BVOC emission rates from sun shoots under standard conditions were higher than those from shade shoots, although this was significant only in July, on the contrary, only α-pinene and γ-terpinene emission rates showed significant differences between sun and shade acclimated shoots in August. Limonene, α-pinene, β-pinene, and myrcene were identified as the most abundant BVOCs in both campaigns with emission rates above 0.2 nmol m−2 s−1. Ex-situ measurements revealed a significantly higher total BVOC emissions under high temperature level (40 °C) by ca. 175% as compared with standard temperature (30 °C), while a short-term fumigation of acute O3 concentration (200 ppb) had no effect on BVOC emissions and its spectrum. These findings might have a relevance considering the role of these compounds in protecting against oxidative stress and their possible stimulation in particular stressful conditions. Implication of such results into emission models may contribute to a more accurate estimation of BVOC emissions for Central European mountain regions dominated by Norway spruce forests and their rate under predicted climate change. |
| Databáze: | OpenAIRE |
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