STABLE CARBON-ISOTOPE FRACTIONATION IN LOWER PLANTS FROM THE SCHIRMACHER AND UNTERSEE OASES (CENTRAL DRONNING MAUD LAND, EAST ANTARCTICA) -(PRELIMINARY-REPORT)

Authors
BOTTGER T SCHIDLOWSKI M WAND U
Citation
T. Bottger et al., STABLE CARBON-ISOTOPE FRACTIONATION IN LOWER PLANTS FROM THE SCHIRMACHER AND UNTERSEE OASES (CENTRAL DRONNING MAUD LAND, EAST ANTARCTICA) -(PRELIMINARY-REPORT), Isotopenpraxis, 29(1-2), 1993, pp. 21-25
Citations number
22
Categorie Soggetti
Chemistry Inorganic & Nuclear","Nuclear Sciences & Tecnology
Journal title
Isotopenpraxis → ACNP
ISSN journal
00211915
Volume
29
Issue
1-2
Year of publication
1993
Pages
21 - 25
Database
ISI
SICI code
0021-1915(1993)29:1-2<21:SCFILP>2.0.ZU;2-U
Abstract
Lower plants (algae, lichens, mosses) from the Antarctic continent hav e been analysed for their stable carbon isotope composition. In contra st to lichens and mosses which exhibit quite normal deltaC-13 C-values the studied microbial benthos is characterized by an extremely low ca rbon isotope fractionation (deltaC-13-values up to -1.4 parts per thou sand vs. PDB). Limited CO2 availability and bicarbonate uptake are pro bably the main factors responsible for this phenomenon.