Determination ofde novoand pool emissions of terpenes from four common boreal/alpine trees by13CO2labelling and PTR-MS analysis

Ghirardo, Andrea; Koch, Katharina; Taipale, Risto; Zimmer, Ina; Schnitzler, Jörg‐Peter; Rinne, Janne

doi:10.1111/j.1365-3040.2010.02104.x

Cited by 26 publications

(63 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The algorithm fitting was conducted using MATLAB function ‘lsqcurvefit’ which allows using initial values as a reasonable starting point for the algorithm fitting ( E 0 =0.1 ng g −1 s −1 , f synth = 0.5, applied based on the results by Ghirardo et al . and Taipale et al . ) and returns also 95% confidence intervals.…”

Section: Methodsmentioning

confidence: 89%

“…This temperature dependence relates especially to emissions originating from storage pools, which in case of conifer foliage are quite large (Ghirardo et al . ; Niinemets et al . ).…”

Section: Discussionmentioning

confidence: 99%

“…The final hybrid formulation for emission rate is converted as follows (Ghirardo et al . ):

E = E_{0} [f_{synth} C_{normalT} C_{normalL} + (1 - f_{synth}) γ]

…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Onset of photosynthesis in spring speeds up monoterpene synthesis and leads to emission bursts

Aalto

Porcar‐Castell

Atherton

et al. 2015

Plant Cell & Environment

View full text Add to dashboard Cite

Emissions of biogenic volatile organic compounds (BVOC) by boreal evergreen trees have strong seasonality, with low emission rates during photosynthetically inactive winter and increasing rates towards summer. Yet, the regulation of this seasonality remains unclear. We measured in situ monoterpene emissions from Scots pine shoots during several spring periods and analysed their dynamics in connection with the spring recovery of photosynthesis. We found high emission peaks caused by enhanced monoterpene synthesis consistently during every spring period (monoterpene emission bursts, MEB). The timing of the MEBs varied relatively little between the spring periods. The timing of the MEBs showed good agreement with the photosynthetic spring recovery, which was studied with simultaneous measurements of chlorophyll fluorescence, CO 2 exchange and a simple, temperature history‐based proxy for state of photosynthetic acclimation, S. We conclude that the MEBs were related to the early stages of photosynthetic recovery, when the efficiency of photosynthetic carbon reactions is still low whereas the light harvesting machinery actively absorbs light energy. This suggests that the MEBs may serve a protective functional role for the foliage during this critical transitory state and that these high emission peaks may contribute to atmospheric chemistry in the boreal forest in springtime.

show abstract

Section: Methodsmentioning

confidence: 89%

“…This temperature dependence relates especially to emissions originating from storage pools, which in case of conifer foliage are quite large (Ghirardo et al . ; Niinemets et al . ).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Onset of photosynthesis in spring speeds up monoterpene synthesis and leads to emission bursts

Aalto

Porcar‐Castell

Atherton

et al. 2015

Plant Cell & Environment

View full text Add to dashboard Cite

show abstract

“…S5B). This is likely due to a high percentage of de novo biosynthesized monoterpenes which have been shown to constitute up to 58% of emitted monoterpenes in Pinus sylvestris 56. Emitted monoterpenes represent a mix of stored (temperature dependent) and de novo synthesized (light and temperature dependent) monoterpenes57 which may consequently contribute to the lack of a relationship between pool sizes and rates of emission and large variation in emission rates (Fig.…”

Section: Discussionmentioning

confidence: 99%

Variation in short-term and long-term responses of photosynthesis and isoprenoid-mediated photoprotection to soil water availability in four Douglas-fir provenances

Junker

Kleiber

Jansen

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

For long-lived forest tree species, the understanding of intraspecific variation among populations and their response to water availability can reveal their ability to cope with and adapt to climate change. Dissipation of excess excitation energy, mediated by photoprotective isoprenoids, is an important defense mechanism against drought and high light when photosynthesis is hampered. We used 50-year-old Douglas-fir trees of four provenances at two common garden experiments to characterize provenance-specific variation in photosynthesis and photoprotective mechanisms mediated by essential and non-essential isoprenoids in response to soil water availability and solar radiation. All provenances revealed uniform photoprotective responses to high solar radiation, including increased de-epoxidation of photoprotective xanthophyll cycle pigments and enhanced emission of volatile monoterpenes. In contrast, we observed differences between provenances in response to drought, where provenances sustaining higher CO2 assimilation rates also revealed increased water-use efficiency, carotenoid-chlorophyll ratios, pools of xanthophyll cycle pigments, β-carotene and stored monoterpenes. Our results demonstrate that local adaptation to contrasting habitats affected chlorophyll-carotenoid ratios, pool sizes of photoprotective xanthophylls, β-carotene, and stored volatile isoprenoids. We conclude that intraspecific variation in isoprenoid-mediated photoprotective mechanisms contributes to the adaptive potential of Douglas-fir provenances to climate change.

show abstract

“…The details of the PTR-MS operating parameters and analytical procedures used in the present study are given elsewhere (Ghirardo et al , 2010). Briefly, the PTR-MS was run with the following parameters: E/N = 110 Td (E = electric field; N = number of density of the drift tube molecules; Td = 1 Townsend = 10 −17 cm 2 V molecule −1 ), p-drift = 1.73 mbar, T = 43 °C, V = 400, O 2 + and NO + < 2% of H 3 O + .…”

Section: Methodsmentioning

confidence: 99%

The Venus flytrap attracts insects by the release of volatile organic compounds

Kreuzwieser

Scheerer

Kruse

et al. 2014

EXBOTJ

Self Cite

View full text Add to dashboard Cite

Does Dionaea muscipula, the Venus flytrap, use a particular mechanism to attract animal prey? This question was raised by Charles Darwin 140 years ago, but it remains unanswered. This study tested the hypothesis that Dionaea releases volatile organic compounds (VOCs) to allure prey insects. For this purpose, olfactory choice bioassays were performed to elucidate if Dionaea attracts Drosophila melanogaster. The VOCs emitted by the plant were further analysed by GC-MS and proton transfer reaction-mass spectrometry (PTR-MS). The bioassays documented that Drosophila was strongly attracted by the carnivorous plant. Over 60 VOCs, including terpenes, benzenoids, and aliphatics, were emitted by Dionaea, predominantly in the light. This work further tested whether attraction of animal prey is affected by the nutritional status of the plant. For this purpose, Dionaea plants were fed with insect biomass to improve plant N status. However, although such feeding altered the VOC emission pattern by reducing terpene release, the attraction of Drosophila was not affected. From these results it is concluded that Dionaea attracts insects on the basis of food smell mimicry because the scent released has strong similarity to the bouquet of fruits and plant flowers. Such a volatile blend is emitted to attract insects searching for food to visit the deadly capture organ of the Venus flytrap.

show abstract

Determination ofde novoand pool emissions of terpenes from four common boreal/alpine trees by¹³CO₂labelling and PTR-MS analysis

Cited by 26 publications

References 46 publications

Onset of photosynthesis in spring speeds up monoterpene synthesis and leads to emission bursts

Onset of photosynthesis in spring speeds up monoterpene synthesis and leads to emission bursts

Variation in short-term and long-term responses of photosynthesis and isoprenoid-mediated photoprotection to soil water availability in four Douglas-fir provenances

The Venus flytrap attracts insects by the release of volatile organic compounds

Contact Info

Product

Resources

About