Outburst of senescence-related VOC emissions from a bioenergy poplar plantation

Portillo‐Estrada, Miguel; Ariza-Carricondo, Cristina; Ceulemans, R.

doi:10.1016/j.plaphy.2020.01.024

Cited by 13 publications

(13 citation statements)

References 53 publications

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“…In grapevine, it has been reported that branches with young leaves collected in spring emit hydrocarbons, but not alcohols [30]. The prevalence of alcohols in the fall experiment, may be due to a predominant emission of oxygenated VOCs by old leaves near senescence, as reported in other species [48].…”

Section: Discussionmentioning

confidence: 58%

Characterization of VOCs Emitted by Foliage of Grapevine cv. Isabella for Prospecting Innovative Cropping Systems

et al. 2022

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Volatile organic compounds play an important role in communication within plants as well as with other organisms. In this work we identified the volatile organic compounds (VOCs) emitted from the foliage of the grapevine cv. Isabella, a largely known hybrid of Vitis vinifera × Vitis labrusca. Our data show 25 VOCs emitted by cv. Isabella. Different compound classes were found, including alcohols, hydrocarbons, esters, terpenes, ketones, and a green leaf volatile (GLV). The study highlighted differences between volatile profiles for diurnal and nocturnal treatments. The compounds: trans-3-dodecene, 5,5 dibutylnonane, ethyl 2-methyllactate, 2-hexanol, 3-ethyl-2-heptanol, 3-nonanol, and 2-nonanol, have not been previously reported for Vitis vinifera foliage. Notably, eight compounds emitted by cv. Isabella, 1-heptanol, 1-octanol, 2-hexanol, 2-nonanone, β-pinene, camphene, cis-hexenyl acetate, and phenethyl alcohol, are of relevant interest for their role in plant defense. New knowledge on the emission of these compounds in cv. Isabella can help to understand the mechanisms of pathogen tolerance of this genotype and could be an important step in prospecting innovative cropping systems.

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Section: Discussionmentioning

confidence: 58%

Characterization of VOCs Emitted by Foliage of Grapevine cv. Isabella for Prospecting Innovative Cropping Systems

et al. 2022

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“…Acetic acid is formed in the atmosphere by the oxidation of isoprene and its oxidation products, with O 3 and OH at low NO (Link et al, 2020). Acetic acid can also be directly emitted from soils (Mielnik et al, 2018) and from plants especially under stress conditions and during senescence (Portillo-Estrada et al, 2020). Kesselmeier et al (1998) found emissions of acetic acid from trees but only deposition on barley and other crops, suggesting a bidirectional stomatal uptake and subsequent usage by plant metabolism, confirmed by Staudt et al (2000).…”

Section: Magnitude Of Major Vocs Exchangedmentioning

confidence: 71%

Volatile organic compound fluxes over a winter wheat field by PTR-Qi-TOF-MS and eddy covariance

et al. 2022

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Abstract. Volatile organic compounds (VOCs) contribute to air pollution through the formation of secondary aerosols and ozone and extend the lifetime of methane in the atmosphere. Tropospheric VOCs originate to 90 % from biogenic sources on a global scale, mainly from forests. Crops are also a potentially large yet poorly characterized source of VOCs (30 % of the VOC emissions in Europe, mostly oxygenated). In this study, we investigated VOC fluxes over a winter wheat field by eddy covariance using a PTR-Qi-TOF-MS with high sensitivity and mass resolution. The study took place near Paris over a 5-week period and included flowering, crop maturity and senescence. We found a total of 123 VOCs with fluxes 3 times above the detection limit. Methanol was the most emitted compound with an average flux of 63 µg m−2 h−1, representing about 52 % of summed VOC emissions on a molar basis (36 % on a mass basis). We also identified ethanol, acetone, acetaldehyde and dimethyl sulfide among the six most emitted compounds. The third most emitted VOC corresponded to the ion m/z 93.033. It was tentatively identified as furan (C6H4O), a compound not previously reported to be strongly emitted by crops. The average summed VOC emissions were about 173 ± 6 µg m2 h−1, while the average VOC depositions were about 109 ± 2 µg m−2 h−1 and hence 63 % of the VOC emissions on a mass basis. The net ecosystem flux of VOCs was an emission of 64 ± 6 µg m−2 h−1 (0.5 ± 0.05 nmol m−2 s−1). The most deposited VOCs were identified as hydroxyacetone, acetic acid and fragments of oxidized VOCs. Overall, our results reveal that wheat fields represent a non-negligible source and sink of VOCs to be considered in regional VOC budgets and underline the usefulness and limitations of eddy covariance measurements with a PTR-Qi-TOF-MS.

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“…Proton‐transfer‐reaction time‐of‐flight mass spectrometry (PTR‐TOF‐MS) (Graus et al., 2010) is a technique developed in the 2000s decade to measure volatile organic compounds (VOCs) in the air in real‐time. It has been successfully used to control the quality and trace the origin of food and beverages (Deuscher et al., 2019), assessing toxic and polluting VOCs that impact human health (Huang et al., 2016), analysing biogeochemical fluxes from ecosystems (Müller et al., 2010; Portillo‐Estrada et al., 2018) and their direct impact on atmosphere (Portillo‐Estrada et al., 2020) and ozone formation (Zenone et al., 2016), in studies on plant (Brilli et al., 2011; Portillo‐Estrada et al., 2015) and lichen (García‐Plazaola et al., 2017) chemical ecophysiology, and to assess the pollutant‐degrading potential of bacteria strains (Imperato et al., 2019). Since this technique acts as a hyper‐sensitive ‘nose’, it has the potential in deciphering the chemical language of vertebrates.…”

Section: Introductionmentioning

confidence: 99%

Proton‐transfer‐reaction time‐of‐flight mass spectrometry (PTR‐TOF‐MS) as a tool for studying animal volatile organic compound (VOC) emissions

et al. 2021

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Chemical sensing in vertebrates is crucial in their lives, and efforts are undertaken towards deciphering their chemical language. Volatile organic compounds (VOCs) are a group of chemicals believed to play an essential role in a wide variety of animal interactions. Therefore, understanding what animals sense themselves and untangling the ecological role of their volatile cues can be accomplished by analysing VOC emissions. A proton‐transfer‐reaction time‐of‐flight mass spectrometer (PTR‐TOF‐MS) is an instrument that measures VOCs in real‐time in an air sample. Since this technique acts as a hyper‐sensitive ‘nose’ it has a similar potential in deciphering the chemical language of vertebrates. Here, we validate the use of PTR‐TOF‐MS as a tool to measure VOCs from vertebrates, which in turn will help resolve vertebrate interactions through VOCs. The instrument monitors and records the full spectrum of VOCs emitted by an individual with a high accuracy and low detection limit, including transient VOC emissions. We propose and test diverse measuring configurations that allow for measurement of VOC emissions from different vertebrates and their exudates: full body, specific parts of the body, urine and femoral pores. In addition, we test configurations for sudden and short‐lasting processes as VOCs emitted during adder skin shedding as well as the emissions of skin secretions upon mechanical and physiological stimulation in amphibia. Our configurations work in tandem with gas chromatography–mass spectrometry (GC‐MS) to allow compound structure verification. We discuss the configurations and methodologies used and conclude with recommendations for further studies, such as the choice of chamber size and flow. We also report the results of the measurements on vertebrates—that are novel to science—and discuss their ecological meaning. We argue that PTR‐TOF‐MS has a high potential to resolve important unanswered questions in vertebrate chemical ecology with great adaptability to a wide range of experimental set‐ups. If combined with a structure verification tool, such as GC‐MS, the creative deployment of PTR‐TOF‐MS in various future study designs will lead to the identification of ecologically relevant VOCs.

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Outburst of senescence-related VOC emissions from a bioenergy poplar plantation

Cited by 13 publications

References 53 publications

Characterization of VOCs Emitted by Foliage of Grapevine cv. Isabella for Prospecting Innovative Cropping Systems

Characterization of VOCs Emitted by Foliage of Grapevine cv. Isabella for Prospecting Innovative Cropping Systems

Volatile organic compound fluxes over a winter wheat field by PTR-Qi-TOF-MS and eddy covariance

Proton‐transfer‐reaction time‐of‐flight mass spectrometry (PTR‐TOF‐MS) as a tool for studying animal volatile organic compound (VOC) emissions

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