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Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains

Volatile organic compound (VOC) emissions are affected by a variety of biotic and abiotic factors such as light intensity, temperature, CO(2) and drought. Another stress factor, usually overlooked but very important for the Amazon region, is flooding. We studied the exchange of VOCs in relation to C...

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Autores principales: Bracho-Nunez, Araceli, Knothe, Nina Maria, Costa, Wallace R, Maria Astrid, Liberato R, Kleiss, Betina, Rottenberger, Stefanie, Piedade, Maria Teresa Fernandez, Kesselmeier, Jürgen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing AG 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3725850/
https://www.ncbi.nlm.nih.gov/pubmed/23961340
http://dx.doi.org/10.1186/2193-1801-1-9
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author Bracho-Nunez, Araceli
Knothe, Nina Maria
Costa, Wallace R
Maria Astrid, Liberato R
Kleiss, Betina
Rottenberger, Stefanie
Piedade, Maria Teresa Fernandez
Kesselmeier, Jürgen
author_facet Bracho-Nunez, Araceli
Knothe, Nina Maria
Costa, Wallace R
Maria Astrid, Liberato R
Kleiss, Betina
Rottenberger, Stefanie
Piedade, Maria Teresa Fernandez
Kesselmeier, Jürgen
author_sort Bracho-Nunez, Araceli
collection PubMed
description Volatile organic compound (VOC) emissions are affected by a variety of biotic and abiotic factors such as light intensity, temperature, CO(2) and drought. Another stress factor, usually overlooked but very important for the Amazon region, is flooding. We studied the exchange of VOCs in relation to CO(2) exchange and transpiration of 8 common tree species from the Amazonian floodplain forest grown up from seeds using a dynamic enclosure system. Analysis of volatile organics was performed by PTR-MS fast online measurements. Our study confirmed emissions of ethanol and acetaldehyde at the beginning of root anoxia after inundation, especially in less anoxia adapted species such as Vatairea guianensis, but not for Hevea spruceana probably due to a better adapted metabolism. In contrast to short-term inundation, long-term flooding of the root system did not result in any emission of ethanol or/and acetaldehyde. Emission of other VOCs, such as isoprenoids, acetone, and methanol exhibited distinct behavior related to the origin (igapó or várzea type of floodplain) of the tree species. Also physiological activities exhibited different response patterns for trees from igapó or várzea. In general, isoprenoid emissions increased within the course of some days of short-term flooding. After a long period of waterlogging, VOC emissions decreased considerably, along with photosynthesis, transpiration and stomatal conductance. However, even under long-term testing conditions, two tree species did not show any significant decrease or increase in photosynthesis. In order to understand ecophysiological advantages of the different responses we need field investigations with adult tree species.
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spelling pubmed-37258502013-07-30 Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains Bracho-Nunez, Araceli Knothe, Nina Maria Costa, Wallace R Maria Astrid, Liberato R Kleiss, Betina Rottenberger, Stefanie Piedade, Maria Teresa Fernandez Kesselmeier, Jürgen Springerplus Research Volatile organic compound (VOC) emissions are affected by a variety of biotic and abiotic factors such as light intensity, temperature, CO(2) and drought. Another stress factor, usually overlooked but very important for the Amazon region, is flooding. We studied the exchange of VOCs in relation to CO(2) exchange and transpiration of 8 common tree species from the Amazonian floodplain forest grown up from seeds using a dynamic enclosure system. Analysis of volatile organics was performed by PTR-MS fast online measurements. Our study confirmed emissions of ethanol and acetaldehyde at the beginning of root anoxia after inundation, especially in less anoxia adapted species such as Vatairea guianensis, but not for Hevea spruceana probably due to a better adapted metabolism. In contrast to short-term inundation, long-term flooding of the root system did not result in any emission of ethanol or/and acetaldehyde. Emission of other VOCs, such as isoprenoids, acetone, and methanol exhibited distinct behavior related to the origin (igapó or várzea type of floodplain) of the tree species. Also physiological activities exhibited different response patterns for trees from igapó or várzea. In general, isoprenoid emissions increased within the course of some days of short-term flooding. After a long period of waterlogging, VOC emissions decreased considerably, along with photosynthesis, transpiration and stomatal conductance. However, even under long-term testing conditions, two tree species did not show any significant decrease or increase in photosynthesis. In order to understand ecophysiological advantages of the different responses we need field investigations with adult tree species. Springer International Publishing AG 2012-07-27 /pmc/articles/PMC3725850/ /pubmed/23961340 http://dx.doi.org/10.1186/2193-1801-1-9 Text en © Bracho-Nunez et al.; licensee Springer. 2012 This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Bracho-Nunez, Araceli
Knothe, Nina Maria
Costa, Wallace R
Maria Astrid, Liberato R
Kleiss, Betina
Rottenberger, Stefanie
Piedade, Maria Teresa Fernandez
Kesselmeier, Jürgen
Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains
title Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains
title_full Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains
title_fullStr Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains
title_full_unstemmed Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains
title_short Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short- and long-term inundation of trees from Amazonian floodplains
title_sort root anoxia effects on physiology and emissions of volatile organic compounds (voc) under short- and long-term inundation of trees from amazonian floodplains
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3725850/
https://www.ncbi.nlm.nih.gov/pubmed/23961340
http://dx.doi.org/10.1186/2193-1801-1-9
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