scholarly journals Isoprenoid emission in hygrophyte and xerophyte European woody flora: ecological and evolutionary implications

2013 ◽  
Vol 23 (3) ◽  
pp. 334-345 ◽  
Author(s):  
Francesco Loreto ◽  
Francesca Bagnoli ◽  
Carlo Calfapietra ◽  
Donata Cafasso ◽  
Manuela De Lillis ◽  
...  
Keyword(s):  
Isoprenoid Emission

scholarly journals Assessment of long-term vegetation changes on potential isoprenoid emission for a Mediterranean-type ecosystem in France

2000 ◽  
Vol 105 (D23) ◽  
pp. 28863-28873 ◽  
Author(s):  
Gertrud Schaab ◽  
Rainer Steinbrecher ◽  
Bernard Lacaze ◽  
Roman Lenz
Keyword(s):  
Vegetation Changes ◽  
Mediterranean Type Ecosystem ◽  
Isoprenoid Emission

scholarly journals Isoprenoid emission variation of Norway spruce across a European latitudinal transect

2017 ◽  
Vol 170 ◽  
pp. 45-57 ◽  
Author(s):  
Ylva van Meeningen ◽  
Min Wang ◽  
Tomas Karlsson ◽  
Ana Seifert ◽  
Guy Schurgers ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Latitudinal Transect ◽  
Isoprenoid Emission

scholarly journals The emission factor of volatile isoprenoids: stress, acclimation, and developmental responses

2010 ◽  
Vol 7 (2) ◽  
pp. 1529-1574 ◽  
Author(s):  
Ü. Niinemets ◽  
A. Arneth ◽  
U. Kuhn ◽  
R. K. Monson ◽  
J. Peñuelas ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Emission Factor ◽  
Leaf Age ◽  
Co2 Concentration ◽  
Biotic Stresses ◽  
Age Variations ◽  
Order Of Magnitude ◽  
Sources Of Variation ◽  
Species Specific ◽  
Isoprenoid Emission

Abstract. Volatile isoprenoid emission rate from plants is driven by plant emission capacity under specified environmental conditions (ES, the emission factor) and by responsiveness of the emissions to instantaneous variations in environment. In models of isoprenoid emission, ES has been often considered as intrinsic species-specific constant invariable in time and space. Here we analyze the variations in species-specific values of ES under field conditions focusing on biotic and abiotic stresses, past environmental conditions and developmental processes. The reviewed studies highlight strong stress-driven (effects of abiotic and biotic stresses), adaptive (previous temperature and light environment and growth CO2 concentration) and developmental (leaf age) variations in ES values. These biological factors can alter species-specific ES values by more than an order of magnitude. Recent models are including some of these biological sources of variation to some degree, while the majority of models based on early concepts still ignore these important sources of variation. This analysis emphasizes the need to include more biological realism in the isoprenoid emission models and also highlights the gaps in knowledge that require further experimental work for mechanistic consideration of ES variation in models.

scholarly journals The emission factor of volatile isoprenoids: stress, acclimation, and developmental responses

2010 ◽  
Vol 7 (7) ◽  
pp. 2203-2223 ◽  
Author(s):  
Ü. Niinemets ◽  
A. Arneth ◽  
U. Kuhn ◽  
R. K. Monson ◽  
J. Peñuelas ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Emission Factor ◽  
Leaf Age ◽  
Co2 Concentration ◽  
Age Variations ◽  
Long Time ◽  
Order Of Magnitude ◽  
Sources Of Variation ◽  
Species Specific ◽  
Isoprenoid Emission

Abstract. The rate of constitutive isoprenoid emissions from plants is driven by plant emission capacity under specified environmental conditions (ES, the emission factor) and by responsiveness of the emissions to instantaneous variations in environment. In models of isoprenoid emission, ES has been often considered as intrinsic species-specific constant invariable in time and space. Here we analyze the variations in species-specific values of ES under field conditions focusing on abiotic stresses, past environmental conditions and developmental processes. The reviewed studies highlight strong stress-driven, adaptive (previous temperature and light environment and growth CO2 concentration) and developmental (leaf age) variations in ES values operating at medium to long time scales. These biological factors can alter species-specific ES values by more than an order of magnitude. While the majority of models based on early concepts still ignore these important sources of variation, recent models are including some of the medium- to long-term controls. However, conceptually different strategies are being used for incorporation of these longer-term controls with important practical implications for parameterization and application of these models. This analysis emphasizes the need to include more biological realism in the isoprenoid emission models and also highlights the gaps in knowledge that require further experimental work to reduce the model uncertainties associated with biological sources of variation.

Bidirectional Flux of Methyl Vinyl Ketone and Methacrolein in Trees with Different Isoprenoid Emission under Realistic Ambient Concentrations

2015 ◽  
Vol 49 (13) ◽  
pp. 7735-7742 ◽  
Author(s):  
Silvano Fares ◽  
Elena Paoletti ◽  
Francesco Loreto ◽  
Federico Brilli
Keyword(s):  
Vinyl Ketone ◽  
Methyl Vinyl Ketone ◽  
Methyl Vinyl ◽  
Ambient Concentrations ◽  
Isoprenoid Emission

scholarly journals Estimations of isoprenoid emission capacity from enclosure studies: measurements, data processing, quality and standardized measurement protocols

2011 ◽  
Vol 8 (8) ◽  
pp. 2209-2246 ◽  
Author(s):  
Ü. Niinemets ◽  
U. Kuhn ◽  
P. C. Harley ◽  
M. Staudt ◽  
A. Arneth ◽  
...  
Keyword(s):  
Data Processing ◽  
Stress Responses ◽  
Emission Factor ◽  
Analytical Techniques ◽  
Critical Examination ◽  
Database Construction ◽  
Meta Information ◽  
Sources Of Variation ◽  
Experimental Protocols ◽  
Isoprenoid Emission

Abstract. The capacity for volatile isoprenoid production under standardized environmental conditions at a certain time (ES, the emission factor) is a key characteristic in constructing isoprenoid emission inventories. However, there is large variation in published ES estimates for any given species partly driven by dynamic modifications in ES due to acclimation and stress responses. Here we review additional sources of variation in ES estimates that are due to measurement and analytical techniques and calculation and averaging procedures, and demonstrate that estimations of ES critically depend on applied experimental protocols and on data processing and reporting. A great variety of experimental setups has been used in the past, contributing to study-to-study variations in ES estimates. We suggest that past experimental data should be distributed into broad quality classes depending on whether the data can or cannot be considered quantitative based on rigorous experimental standards. Apart from analytical issues, the accuracy of ES values is strongly driven by extrapolation and integration errors introduced during data processing. Additional sources of error, especially in meta-database construction, can further arise from inconsistent use of units and expression bases of ES. We propose a standardized experimental protocol for BVOC estimations and highlight basic meta-information that we strongly recommend to report with any ES measurement. We conclude that standardization of experimental and calculation protocols and critical examination of past reports is essential for development of accurate emission factor databases.

scholarly journals Increased Ratio of Electron Transport to Net Assimilation Rate Supports Elevated Isoprenoid Emission Rate in Eucalypts under Drought

2014 ◽  
Vol 166 (2) ◽  
pp. 1059-1072 ◽  
Author(s):  
K. G. S. Dani ◽  
I. M. Jamie ◽  
I. C. Prentice ◽  
B. J. Atwell
Keyword(s):  
Electron Transport ◽  
Emission Rate ◽  
Net Assimilation Rate ◽  
Assimilation Rate ◽  
Net Assimilation ◽  
Isoprenoid Emission

scholarly journals Regional Isoprenoid Emission from Eucalyptus grandis Forests in Northeastern Argentina

2016 ◽  
Vol 18 (03) ◽  
pp. 615-622 ◽  
Author(s):  
Klaus Richter ◽  
Mauro Centritto ◽  
Carlos Di Bella ◽  
Gabriela Posse
Keyword(s):  
Eucalyptus Grandis ◽  
Northeastern Argentina ◽  
Isoprenoid Emission

A hypothesis on the evolution of isoprenoid emission by oaks based on the correlation between emission type and Quercus taxonomy

Oecologia ◽  
1998 ◽  
Vol 115 (3) ◽  
pp. 302-305 ◽  
Author(s):  
Francesco Loreto ◽  
Paolo Ciccioli ◽  
Enzo Brancaleoni ◽  
Riccardo Valentini ◽  
Manuela De Lillis ◽  
...  
Keyword(s):  
Isoprenoid Emission

scholarly journals Isoprenoid emission response to changing light conditions of English oak, European beech and Norway spruce

2017 ◽  
Vol 14 (18) ◽  
pp. 4045-4060 ◽  
Author(s):  
Ylva van Meeningen ◽  
Guy Schurgers ◽  
Riikka Rinnan ◽  
Thomas Holst
Keyword(s):  
Light Intensity ◽  
Norway Spruce ◽  
Tree Species ◽  
Light Response ◽  
European Beech ◽  
Influential Factors ◽  
High Light ◽  
English Oak ◽  
Species Specific ◽  
Isoprenoid Emission

Abstract. Light is an important environmental factor controlling biogenic volatile organic compound (BVOC) emissions, but in natural conditions its impact is hard to separate from other influential factors such as temperature. We studied the light response of foliar BVOC emissions, photosynthesis and stomatal conductance on three common European tree species, namely English oak (Quercus robur), European beech (Fagus sylvatica) and two provenances of Norway spruce (Picea abies) in Taastrup, Denmark. Leaf scale measurements were performed on the lowest positioned branches of the tree in July 2015. Light intensity was increased in four steps (0, 500, 1000 and 1500 µmol m−2 s−1), whilst other chamber conditions such as temperature, humidity and CO2 levels were fixed. Whereas the emission rate differed between individuals of the same species, the relative contributions of compounds to the total isoprenoid emission remained similar. Whilst some compounds were species specific, the compounds α-pinene, camphene, 3-carene, limonene and eucalyptol were emitted by all of the measured tree species. Some compounds, like isoprene and sabinene, showed an increasing emission response with increasing light intensity, whereas other compounds, like camphene, had no significant emission response to light for most of the measured trees. English oak and European beech showed high light-dependent emission fractions from isoprene and sabinene, but other emitted compounds were light independent. For the two provenances of Norway spruce, the compounds α-pinene, 3-carene and eucalyptol showed high light-dependent fractions for many of the measured trees. This study highlights differences between compound emissions in their response to a change in light and a possible light independence for certain compounds, which might be valid for a wider range of tree species. This information could be of importance when improving emission models and to further emphasize the discussion regarding light or temperature dependencies for individual compounds across species.

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