Methanol and isoprene emissions from the fast growing tropical pioneer species <i>Vismia guianensis</i> (Aubl.) Pers. (Hypericaceae) in the central Amazon forest
Abstract
Isoprene (Is) emissions by plants represent a loss of carbon and energy resources leading to the initial hypothesis that fast growing pioneer species in secondary tropical forests allocate carbon primarily to growth at the expense of isoprenoid defenses. In this study, we quantified leaf isoprene and methanol emissions from the abundant pantropical pioneer tree species Vismia guianensis and ambient isoprene concentrations above a diverse secondary forest in the central Amazon. As photosynthetically active radiation (PAR) was varied (0 to 3000 µmol m-2 s-1) under standard leaf temperature (30 °C), isoprene emissions from V. guianensis increased without saturation up to 80 nmol m-2 s-1. A nonlinear increase in isoprene emissions with respect to net photosynthesis (Pn) resulted in the fraction of Pn dedicated to isoprene emissions increasing with light intensity (up to 2 % of Pn). Emission responses to temperature under standard light conditions (PAR of 1000 µmol m-2 s-1) resulted in the classic uncoupling of isoprene emissions (Topt, iso > 40 °C) from net photosynthesis (Topt, Pn = 30.0–32.5 °C) with up to 7 % of Pn emitted as isoprene at 40 °C. Under standard environmental conditions of PAR and leaf temperature, young V. guianensis leaves showed high methanol emissions,more »
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1254520
- Alternate Identifier(s):
- OSTI ID: 1379357
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Published Article
- Journal Name:
- Atmospheric Chemistry and Physics (Online)
- Additional Journal Information:
- Journal Name: Atmospheric Chemistry and Physics (Online) Journal Volume: 16 Journal Issue: 10; Journal ID: ISSN 1680-7324
- Publisher:
- Copernicus Publications, EGU
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES
Citation Formats
Jardine, Kolby J., Jardine, Angela B., Souza, Vinicius F., Carneiro, Vilany, Ceron, Joao V., Gimenez, Bruno O., Soares, Cilene P., Durgante, Flavia M., Higuchi, Niro, Manzi, Antonio O., Gonçalves, José F. C., Garcia, Sabrina, Martin, Scot T., Zorzanelli, Raquel F., Piva, Luani R., and Chambers, Jeff Q. Methanol and isoprene emissions from the fast growing tropical pioneer species <i>Vismia guianensis</i> (Aubl.) Pers. (Hypericaceae) in the central Amazon forest. Germany: N. p., 2016.
Web. doi:10.5194/acp-16-6441-2016.
Jardine, Kolby J., Jardine, Angela B., Souza, Vinicius F., Carneiro, Vilany, Ceron, Joao V., Gimenez, Bruno O., Soares, Cilene P., Durgante, Flavia M., Higuchi, Niro, Manzi, Antonio O., Gonçalves, José F. C., Garcia, Sabrina, Martin, Scot T., Zorzanelli, Raquel F., Piva, Luani R., & Chambers, Jeff Q. Methanol and isoprene emissions from the fast growing tropical pioneer species <i>Vismia guianensis</i> (Aubl.) Pers. (Hypericaceae) in the central Amazon forest. Germany. https://doi.org/10.5194/acp-16-6441-2016
Jardine, Kolby J., Jardine, Angela B., Souza, Vinicius F., Carneiro, Vilany, Ceron, Joao V., Gimenez, Bruno O., Soares, Cilene P., Durgante, Flavia M., Higuchi, Niro, Manzi, Antonio O., Gonçalves, José F. C., Garcia, Sabrina, Martin, Scot T., Zorzanelli, Raquel F., Piva, Luani R., and Chambers, Jeff Q. Thu .
"Methanol and isoprene emissions from the fast growing tropical pioneer species <i>Vismia guianensis</i> (Aubl.) Pers. (Hypericaceae) in the central Amazon forest". Germany. https://doi.org/10.5194/acp-16-6441-2016.
@article{osti_1254520,
title = {Methanol and isoprene emissions from the fast growing tropical pioneer species <i>Vismia guianensis</i> (Aubl.) Pers. (Hypericaceae) in the central Amazon forest},
author = {Jardine, Kolby J. and Jardine, Angela B. and Souza, Vinicius F. and Carneiro, Vilany and Ceron, Joao V. and Gimenez, Bruno O. and Soares, Cilene P. and Durgante, Flavia M. and Higuchi, Niro and Manzi, Antonio O. and Gonçalves, José F. C. and Garcia, Sabrina and Martin, Scot T. and Zorzanelli, Raquel F. and Piva, Luani R. and Chambers, Jeff Q.},
abstractNote = {Isoprene (Is) emissions by plants represent a loss of carbon and energy resources leading to the initial hypothesis that fast growing pioneer species in secondary tropical forests allocate carbon primarily to growth at the expense of isoprenoid defenses. In this study, we quantified leaf isoprene and methanol emissions from the abundant pantropical pioneer tree species Vismia guianensis and ambient isoprene concentrations above a diverse secondary forest in the central Amazon. As photosynthetically active radiation (PAR) was varied (0 to 3000 µmol m-2 s-1) under standard leaf temperature (30 °C), isoprene emissions from V. guianensis increased without saturation up to 80 nmol m-2 s-1. A nonlinear increase in isoprene emissions with respect to net photosynthesis (Pn) resulted in the fraction of Pn dedicated to isoprene emissions increasing with light intensity (up to 2 % of Pn). Emission responses to temperature under standard light conditions (PAR of 1000 µmol m-2 s-1) resulted in the classic uncoupling of isoprene emissions (Topt, iso > 40 °C) from net photosynthesis (Topt, Pn = 30.0–32.5 °C) with up to 7 % of Pn emitted as isoprene at 40 °C. Under standard environmental conditions of PAR and leaf temperature, young V. guianensis leaves showed high methanol emissions, low Pn, and low isoprene emissions. In contrast, mature leaves showed high Pn, high isoprene emissions, and low methanol emissions, highlighting the differential control of leaf phenology over methanol and isoprene emissions. High daytime ambient isoprene concentrations (11 ppbv) were observed above a secondary Amazon rainforest, suggesting that isoprene emissions are common among neotropical pioneer species. The results are not consistent with the initial hypothesis and support a functional role of methanol during leaf expansion and the establishment of photosynthetic machinery and a protective role of isoprene for photosynthesis during high temperature extremes regularly experienced in secondary rainforest ecosystems.},
doi = {10.5194/acp-16-6441-2016},
journal = {Atmospheric Chemistry and Physics (Online)},
number = 10,
volume = 16,
place = {Germany},
year = {Thu May 26 00:00:00 EDT 2016},
month = {Thu May 26 00:00:00 EDT 2016}
}
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https://doi.org/10.5194/acp-16-6441-2016
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