Depletion of 13C in lignin and its implications for stable carbon isotope studies

Autor:	Robert E. Hodson, Ronald Benner, E. Kent Sprague, Marilyn L. Fogel
Rok vydání:	1987
Předmět:	chemistry.chemical_classification Spartina Multidisciplinary Detritus biology Chemistry fungi food and beverages chemistry.chemical_element biology.organism_classification Spartina alterniflora chemistry.chemical_compound Isotopes of carbon Botany Lignin Ecosystem Organic matter Carbon
Zdroj:	Nature. 329:708-710
ISSN:	1476-4687 0028-0836
Popis:	Stable carbon isotope compositions of organic matter are now widely used to trace carbon flow in ecosystems, and have been instrumental in shaping current perceptions of the importance of terrestrial vegetation to estuarine and coastal marine environments. A general assumption in these and other studies relying on carbon isotope compositions for source identification of organic matter has been that the major biochemical components of plant tissues are isotopically invariant. We report here large differences between the carbon isotope compositions of the polysaccharide and lignin components of a variety of vascular plants, including the salt-marsh grass Spartina alterniflora, and demonstrate that the carbon isotope composition of Spartina detritus gradually changes during biogeochemical processing as polysaccharides are preferentially removed, leaving a material that is relatively enriched in lignin-derived carbon and depleted in 13C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::53c6ee8f1e50496c869dddcee3a85e0b https://doi.org/10.1038/329708a0 Zobrazit plný text záznamu