Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon
Main Author: | |
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Publication Date: | 2014 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Acta Amazonica |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000100002 |
Summary: | Isoprene emission from plants accounts for about one third of annual global volatile organic compound emissions. The largest source of isoprene for the global atmosphere is the Amazon Basin. This study aimed to identify and quantify the isoprene emission and photosynthesis at different levels of light intensity and leaf temperature, in three phenological phases (young mature leaf, old mature leaf and senescent leaf) of Eschweilera coriacea (Matamatá verdadeira), the species with the widest distribution in the central Amazon. In situ photosynthesis and isoprene emission measurements showed that young mature leaf had the highest rates at all light intensities and leaf temperatures. Additionally, it was observed that isoprene emission capacity (Es) changed considerably over different leaf ages. This suggests that aging leads to a reduction of both leaf photosynthetic activity and isoprene production and emission. The algorithm of Guenther et al. (1999) provided good fits to the data when incident light was varied, however differences among E S of all leaf ages influenced on quantic yield predicted by model. When leaf temperature was varied, algorithm prediction was not satisfactory for temperature higher than ~40 °C; this could be because our data did not show isoprene temperature optimum up to 45 °C. Our results are consistent with the hypothesis of the isoprene functional role in protecting plants from high temperatures and highlight the need to include leaf phenology effects in isoprene emission models. |
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Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazonlight response curvetemperature response curveleaf phenologytropical speciesIsoprene emission from plants accounts for about one third of annual global volatile organic compound emissions. The largest source of isoprene for the global atmosphere is the Amazon Basin. This study aimed to identify and quantify the isoprene emission and photosynthesis at different levels of light intensity and leaf temperature, in three phenological phases (young mature leaf, old mature leaf and senescent leaf) of Eschweilera coriacea (Matamatá verdadeira), the species with the widest distribution in the central Amazon. In situ photosynthesis and isoprene emission measurements showed that young mature leaf had the highest rates at all light intensities and leaf temperatures. Additionally, it was observed that isoprene emission capacity (Es) changed considerably over different leaf ages. This suggests that aging leads to a reduction of both leaf photosynthetic activity and isoprene production and emission. The algorithm of Guenther et al. (1999) provided good fits to the data when incident light was varied, however differences among E S of all leaf ages influenced on quantic yield predicted by model. When leaf temperature was varied, algorithm prediction was not satisfactory for temperature higher than ~40 °C; this could be because our data did not show isoprene temperature optimum up to 45 °C. Our results are consistent with the hypothesis of the isoprene functional role in protecting plants from high temperatures and highlight the need to include leaf phenology effects in isoprene emission models.Instituto Nacional de Pesquisas da Amazônia2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000100002Acta Amazonica v.44 n.1 2014reponame:Acta Amazonicainstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPA10.1590/S0044-59672014000100002info:eu-repo/semantics/openAccessAlves,Eliane GomesHarley,PeterGonçalves,José Francisco de C.Moura,Carlos Eduardo da SilvaJardine,Kolbyeng2013-11-04T00:00:00Zoai:scielo:S0044-59672014000100002Revistahttps://acta.inpa.gov.br/PUBhttps://old.scielo.br/oai/scielo-oai.phpacta@inpa.gov.br||acta@inpa.gov.br1809-43920044-5967opendoar:2013-11-04T00:00Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.none.fl_str_mv |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon |
title |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon |
spellingShingle |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon Alves,Eliane Gomes light response curve temperature response curve leaf phenology tropical species |
title_short |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon |
title_full |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon |
title_fullStr |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon |
title_full_unstemmed |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon |
title_sort |
Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon |
author |
Alves,Eliane Gomes |
author_facet |
Alves,Eliane Gomes Harley,Peter Gonçalves,José Francisco de C. Moura,Carlos Eduardo da Silva Jardine,Kolby |
author_role |
author |
author2 |
Harley,Peter Gonçalves,José Francisco de C. Moura,Carlos Eduardo da Silva Jardine,Kolby |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Alves,Eliane Gomes Harley,Peter Gonçalves,José Francisco de C. Moura,Carlos Eduardo da Silva Jardine,Kolby |
dc.subject.por.fl_str_mv |
light response curve temperature response curve leaf phenology tropical species |
topic |
light response curve temperature response curve leaf phenology tropical species |
description |
Isoprene emission from plants accounts for about one third of annual global volatile organic compound emissions. The largest source of isoprene for the global atmosphere is the Amazon Basin. This study aimed to identify and quantify the isoprene emission and photosynthesis at different levels of light intensity and leaf temperature, in three phenological phases (young mature leaf, old mature leaf and senescent leaf) of Eschweilera coriacea (Matamatá verdadeira), the species with the widest distribution in the central Amazon. In situ photosynthesis and isoprene emission measurements showed that young mature leaf had the highest rates at all light intensities and leaf temperatures. Additionally, it was observed that isoprene emission capacity (Es) changed considerably over different leaf ages. This suggests that aging leads to a reduction of both leaf photosynthetic activity and isoprene production and emission. The algorithm of Guenther et al. (1999) provided good fits to the data when incident light was varied, however differences among E S of all leaf ages influenced on quantic yield predicted by model. When leaf temperature was varied, algorithm prediction was not satisfactory for temperature higher than ~40 °C; this could be because our data did not show isoprene temperature optimum up to 45 °C. Our results are consistent with the hypothesis of the isoprene functional role in protecting plants from high temperatures and highlight the need to include leaf phenology effects in isoprene emission models. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000100002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000100002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0044-59672014000100002 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
dc.source.none.fl_str_mv |
Acta Amazonica v.44 n.1 2014 reponame:Acta Amazonica 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 |
Acta Amazonica |
collection |
Acta Amazonica |
repository.name.fl_str_mv |
Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA) |
repository.mail.fl_str_mv |
acta@inpa.gov.br||acta@inpa.gov.br |
_version_ |
1752129839886761984 |