The respiratory system of Sulfolobus acidocaldarius, a thermoacidophilic archaebacterium

S. Anemüller, M. Lübben, G. Schäfer*

*Corresponding author for this work
52 Citations (Scopus)


The respiratory properties, cellular ATP content and absorption difference spectra of Sulfolobus acidocaldarius (DSM 639) have been investigated. In contrast to earlier postulates regarding Thermoplasma acidophilum [(1984) Syst. Appl. Microbiol. 5, 30-40], S. acidocaldarius seemed to depend energetically on respiration-coupled phosphorylation. Its ATP content strictly depended on respiratory activity. Its membrane is capable of proton pumping and presumably contains a branched electron transport system. The latter is composed of at least 2 types of cytochromes, an a+- and presumably an o-type, while c-type cytochromes could not be detected. It appears possible that one of the terminal oxidases is directly reduced by the socalled caldariellaquinone, found in the same organism [(1983) Syst. Appl. Microbiol. 4, 295-304].

Original languageEnglish
JournalFEBS Letters
Issue number1
Pages (from-to)83-87
Number of pages5
Publication statusPublished - 25.11.1985

Research Areas and Centers

  • Academic Focus: Center for Infection and Inflammation Research (ZIEL)


Dive into the research topics of 'The respiratory system of Sulfolobus acidocaldarius, a thermoacidophilic archaebacterium'. Together they form a unique fingerprint.

Cite this