Abstract:
:The stable carbon isotopic compositions of the inorganic carbon source, bulk cell material, and isoprenoid lipids of the hyperthermophilic crenarchaeon Metallosphaera sedula, which uses a 3-hydroxypropionate-like pathway for autotrophic carbon fixation, have been measured. Bulk cell material was approximately 3 per thousand enriched in 13C relative to the dissolved inorganic carbon, and 2 per thousand depleted in 13C relative to isoprenoid membrane lipids. The isotope data suggested that M. sedula uses mainly bicarbonate rather than CO(2) as inorganic carbon source, which is in accordance with a 3-hydroxypropionate-like carbon fixation pathway. To the best of our knowledge this is the first report of 13C fractionation effects of such a hyperthermophilic crenarchaeon.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
van der Meer MT,Schouten S,Rijpstra WI,Fuchs G,Sinninghe Damsté JSdoi
10.1111/j.1574-6968.2001.tb10542.xkeywords:
subject
Has Abstractpub_date
2001-03-01 00:00:00pages
67-70issue
1eissn
0378-1097issn
1574-6968pii
S0378-1097(01)00038-6journal_volume
196pub_type
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