Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/15815 |
Resumo: | 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 3000μ2s-1) under standard leaf temperature (30°C), isoprene emissions from V. guianensis increased without saturation up to 80n2s-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 1000μ2s-1) resulted in the classic uncoupling of isoprene emissions (Topt, iso>40°C) from net photosynthesis (Topt, Pn Combining double low line 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 (11ppbv) 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. © 2016 Author(s). |
id |
INPA-2_2fbfdb3243e0380da56dd866b6ad2ea7 |
---|---|
oai_identifier_str |
oai:repositorio:1/15815 |
network_acronym_str |
INPA-2 |
network_name_str |
Repositório Institucional do INPA |
repository_id_str |
|
spelling |
Jardine, Kolby J.Jardine, Angela B.Souza, Vinicius F.Carneiro, Vilany Matilla ColaresCeron, João Vitor BarbosaGimenez, Bruno OlivaSoares, Cilene P.Durgante, Flávia MachadoHiguchi, NiroManzi, Antônio OcimarGonçalves, José Francisco Carvalho deGarcia, SabrinaMartin, Scot T.Zorzanelli, Raquel F.Piva, Luani Rde OliveiraChambers, Jeffrey Quintin2020-05-19T13:43:49Z2020-05-19T13:43:49Z2016https://repositorio.inpa.gov.br/handle/1/1581510.5194/acp-16-6441-2016Isoprene (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 3000μ2s-1) under standard leaf temperature (30°C), isoprene emissions from V. guianensis increased without saturation up to 80n2s-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 1000μ2s-1) resulted in the classic uncoupling of isoprene emissions (Topt, iso>40°C) from net photosynthesis (Topt, Pn Combining double low line 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 (11ppbv) 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. © 2016 Author(s).Volume 16, Número 10, Pags. 6441-6452Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessClusiaceaeVismia GuianensisMethanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forestinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAtmospheric Chemistry and Physicsengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf2192503https://repositorio.inpa.gov.br/bitstream/1/15815/1/artigo-inpa.pdf9fbc05ea4246e6d0e37b9690ea6bf7bdMD511/158152020-05-19 10:00:36.027oai:repositorio:1/15815Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-05-19T14:00:36Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest |
title |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest |
spellingShingle |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest Jardine, Kolby J. Clusiaceae Vismia Guianensis |
title_short |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest |
title_full |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest |
title_fullStr |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest |
title_full_unstemmed |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest |
title_sort |
Methanol and isoprene emissions from the fast growing tropical pioneer species Vismia guianensis (Aubl.) Pers. (Hypericaceae) in the central Amazon forest |
author |
Jardine, Kolby J. |
author_facet |
Jardine, Kolby J. Jardine, Angela B. Souza, Vinicius F. Carneiro, Vilany Matilla Colares Ceron, João Vitor Barbosa Gimenez, Bruno Oliva Soares, Cilene P. Durgante, Flávia Machado Higuchi, Niro Manzi, Antônio Ocimar Gonçalves, José Francisco Carvalho de Garcia, Sabrina Martin, Scot T. Zorzanelli, Raquel F. Piva, Luani Rde Oliveira Chambers, Jeffrey Quintin |
author_role |
author |
author2 |
Jardine, Angela B. Souza, Vinicius F. Carneiro, Vilany Matilla Colares Ceron, João Vitor Barbosa Gimenez, Bruno Oliva Soares, Cilene P. Durgante, Flávia Machado Higuchi, Niro Manzi, Antônio Ocimar Gonçalves, José Francisco Carvalho de Garcia, Sabrina Martin, Scot T. Zorzanelli, Raquel F. Piva, Luani Rde Oliveira Chambers, Jeffrey Quintin |
author2_role |
author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Jardine, Kolby J. Jardine, Angela B. Souza, Vinicius F. Carneiro, Vilany Matilla Colares Ceron, João Vitor Barbosa Gimenez, Bruno Oliva Soares, Cilene P. Durgante, Flávia Machado Higuchi, Niro Manzi, Antônio Ocimar Gonçalves, José Francisco Carvalho de Garcia, Sabrina Martin, Scot T. Zorzanelli, Raquel F. Piva, Luani Rde Oliveira Chambers, Jeffrey Quintin |
dc.subject.eng.fl_str_mv |
Clusiaceae Vismia Guianensis |
topic |
Clusiaceae Vismia Guianensis |
description |
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 3000μ2s-1) under standard leaf temperature (30°C), isoprene emissions from V. guianensis increased without saturation up to 80n2s-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 1000μ2s-1) resulted in the classic uncoupling of isoprene emissions (Topt, iso>40°C) from net photosynthesis (Topt, Pn Combining double low line 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 (11ppbv) 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. © 2016 Author(s). |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2020-05-19T13:43:49Z |
dc.date.available.fl_str_mv |
2020-05-19T13:43:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.inpa.gov.br/handle/1/15815 |
dc.identifier.doi.none.fl_str_mv |
10.5194/acp-16-6441-2016 |
url |
https://repositorio.inpa.gov.br/handle/1/15815 |
identifier_str_mv |
10.5194/acp-16-6441-2016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 16, Número 10, Pags. 6441-6452 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Atmospheric Chemistry and Physics |
publisher.none.fl_str_mv |
Atmospheric Chemistry and Physics |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INPA instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
instname_str |
Instituto Nacional de Pesquisas da Amazônia (INPA) |
instacron_str |
INPA |
institution |
INPA |
reponame_str |
Repositório Institucional do INPA |
collection |
Repositório Institucional do INPA |
bitstream.url.fl_str_mv |
https://repositorio.inpa.gov.br/bitstream/1/15815/1/artigo-inpa.pdf |
bitstream.checksum.fl_str_mv |
9fbc05ea4246e6d0e37b9690ea6bf7bd |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 |
repository.name.fl_str_mv |
Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA) |
repository.mail.fl_str_mv |
|
_version_ |
1797064401039130624 |