Factors Controlling the Emissions of Monoterpenes and Other Volatile Organic Compounds

Tingey, David T.; Turner, David P.; Weber, J.A.

doi:10.1016/b978-0-12-639010-0.50009-1

Cited by 144 publications

(132 citation statements)

References 72 publications

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“…1). Temperature increases the emission rates of most BVOCs exponentially by enhancing the enzymatic activities of synthesis, by raising the BVOC vapor pressure, and by decreasing the resistance of the diffusion pathway [18].…”

Section: Increased Bvoc Emissions With Warmingmentioning

confidence: 99%

“…The global annual emission rate is estimated to be , 10 15 g BVOCs y 21 (Table 1), which constitutes , 80% of the chemically reactive VOCs added to the atmosphere each year (the rest are anthropogenic) [22]. By applying the algorithms of emission response to temperature [18,21], we have roughly calculated that the global warming over the past 30 years [23,24] could have increased the BVOC global emissions by , 10%, and a further 2 -3 8C rise in the mean global temperature, which is predicted to occur this century [24], could increase BVOC global emissions by an additional 30 -45%.…”

Section: Increased Bvoc Emissions With Warmingmentioning

confidence: 99%

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BVOCs: plant defense against climate warming?

Peñuelas

2003

Trends in Plant Science

279

203

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Section: Increased Bvoc Emissions With Warmingmentioning

confidence: 99%

Section: Increased Bvoc Emissions With Warmingmentioning

confidence: 99%

BVOCs: plant defense against climate warming?

Peñuelas

2003

Trends in Plant Science

279

203

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“…The estimates of/3 listed in Table 4 data from which the estimates of/3 in Table 4 Detailed monoterpene emission rate models which base monoterpene emission rates on environmental conditions, leaf morphology, and needle resin content have been proposed [e.g., Tingey et al, 1991]. These detailed models cannot be evaluated with existing field measurement data sets and require input variables which are not currently available on regional scales.…”

Section: Model Sensitivity Analysismentioning

confidence: 99%

Isoprene and monoterpene emission rate variability: Model evaluations and sensitivity analyses

Guenther¹,

Zimmerman²,

Harley³

et al. 1993

J. Geophys. Res.

1,607

1,716

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The emission of isoprene and monoterpenes from plants is influenced by light and leaf temperature, which account for almost all short‐term variations (minutes to days) and a large part of spatial and long‐term variations. The temperature dependence of monoterpene emission varies among monoterpenes, plant species, and other factors, but a simple exponential relationship between emission rate (E) and leaf temperature (T), E = Es [exp (β(T − Ts))], provides a good approximation. A review of reported measurements suggests a best estimate of β = 0.09 K−1 for all plants and monoterpenes. Isoprene emissions increase with photosynthetically active radiation up to a saturation point at 700–900 μmol m−2 s−1. An exponential increase in isoprene emission is observed at leaf temperatures of less than 30°C. Emissions continue to increase with higher temperatures until a maximum emission rate is reached at about 40°C, after which emissions rapidly decline. This temperature dependence can be described by an enzyme activation equation that includes denaturation at high temperature. Algorithms developed to simulate these light and temperature responses perform well for a variety of plant species under laboratory and field conditions. Evaluations with field measurements indicate that these algorithms perform significantly better than earlier models which have previously been used to simulate isoprene emission rate variation. These algorithms account for about 90% of observed diurnal variability and can predict diurnal variations in hourly averaged isoprene emissions to within 35%.

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“…Traditionally, the emissions from conifers have been assumed to originate from the evaporation of the compounds out of these storage pools. Such emissions exponentially depend on temperature but do not depend on light intensity (Tingey et al, 1991). However, many recent studies have shown that de novo biosynthesis, which 10 is regulated by both temperature and light (Guenther et al, 1993), also contributes to a certain amount of the total emissions from conifers (Shao et al, 2001;Ghirardo et al, 2010;Taipale et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

<sup>13</sup>C labelling study of constitutive and stress-induced terpenoide missions from Norway spruce and Scots pine

Pullinen

Andres

et al. 2017

Preprint

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Abstract. Due to their large source strengths, biogenic volatile organic compounds (BVOCs) are important for atmospheric 10 chemistry. Terpenoids, mainly consisting of isoprene, monoterpenes and sesquiterpenes, are the dominant BVOC class.There are two general mechanisms for their emissions: emissions directly from de novo biosynthesis (de novo emissions) and emissions from organs wherein the terpenoids are stored (pool emissions). While isoprene emissions are pure de novo emissions, the mechanism for monoterpene and sesquiterpene emissions is not always distinct. In particular, conifers have large storage pools and both mechanisms may contribute to the emissions. 15To obtain more insight into the mechanisms of the terpenoid emissions from Eurasian conifers, we conducted 13 CO 2 and 13 Cglucose labelling studies with Norway spruce (Picea abies L.) and Scots pine (Pinus sylvestris L.). The results from the labelling experiments were further compared to diurnal modulations measured for the emission fluxes of the respective terpenoids, as well as to their release from reservoirs in needles and bark tissue.The comparison allowed the following comprehensive statements for the investigated conifers. Consistent to other studies, 20 we found that constitutive monoterpene emissions mainly originate from storage pools but with compound-specific fractions of de novo emissions. In contrast, stress-induced monoterpene and sesquiterpene emissions are entirely of de novo nature.We also found at least three different carbon sources for monoterpene and sesquiterpene biosynthesis. These sources differ with respect to the timescale after which the recently assimilated carbon reappears in the emitted terpenoids. Carbon directly obtained from assimilated CO 2 has a short turnover time of few hours, while carbon from other alternative carbon sources 25 has intermediate turnover times of few days and even longer. Terpenoid biosynthesis is not restricted to the presence of light and the carbon for terpenoid biosynthesis can be delivered from the alternative carbon sources. In particular for sesquiterpenes, there can be substantial de novo emissions in darkness reaching up to around 60 % of the daytime emissions.

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Factors Controlling the Emissions of Monoterpenes and Other Volatile Organic Compounds

Cited by 144 publications

References 72 publications

BVOCs: plant defense against climate warming?

BVOCs: plant defense against climate warming?

Isoprene and monoterpene emission rate variability: Model evaluations and sensitivity analyses

<sup>13</sup>C labelling study of constitutive and stress-induced terpenoide missions from Norway spruce and Scots pine

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Factors Controlling the Emissions of Monoterpenes and Other Volatile Organic Compounds

Cited by 144 publications

References 72 publications

BVOCs: plant defense against climate warming?

BVOCs: plant defense against climate warming?

Isoprene and monoterpene emission rate variability: Model evaluations and sensitivity analyses

&lt;sup&gt;13&lt;/sup&gt;C labelling study of constitutive and stress-induced terpenoide missions from Norway spruce and Scots pine

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Product

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<sup>13</sup>C labelling study of constitutive and stress-induced terpenoide missions from Norway spruce and Scots pine