Low secondary leaf wax n-alkane synthesis on fully mature leaves of C3 grasses grown at controlled environmental conditions and variable humidity
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 3703845
Author(s) Gamarra, Bruno; Kahmen, Ansgar
Author(s) at UniBasel Kahmen, Ansgar
Gamarra Vives, Bruno
Year 2017
Title Low secondary leaf wax n-alkane synthesis on fully mature leaves of C3 grasses grown at controlled environmental conditions and variable humidity
Journal Rapid Communications in Mass Spectrometry
Volume 31
Number 2
Pages / Article-Number 218-226
Abstract Leaf wax n-alkanes are long-chained aliphatic compounds that are present in the cuticle of terrestrial plant leaves. Their δ(2) H values are used for the reconstruction of past environments and for plant ecological investigations. The timing of n-alkane synthesis during leaf development and the rate of synthesis of secondary n-alkanes in fully matured leaves are still a matter of debate.; Using a (2) H-labeling approach we estimated secondary leaf wax n-alkane synthesis rates in mature leaf blades of six C3 grass species grown in climate chambers under controlled environmental conditions.; We found that mature grass leaves continue the synthesis of leaf wax n-alkanes after leaf maturation. The rate of secondary n-alkanes synthesis was, however, relatively low and varied in response to atmospheric humidity and among species from 0.09 to 1.09% per day.; Our investigation provides new evidence on the timing of cuticular wax synthesis in grass leaves and indicates that the majority of n-alkanes are synthesized during the initial development of the leaf. Our study will improve the interpretation of leaf wax n-alkane δ(2) H values in environmental and geological studies as it suggests that secondary synthesis of leaf wax n-alkanes in grass leaves contributes only slightly to the geological record. Copyright © 2016 John Wiley & Sons, Ltd.
Publisher Wiley
ISSN/ISBN 0951-4198 ; 1097-0231
edoc-URL http://edoc.unibas.ch/52525/
Full Text on edoc No
Digital Object Identifier DOI 10.1002/rcm.7770
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/27778411
ISI-Number WOS:000390782400008
Document type (ISI) Journal Article
 
   

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08/02/2023