title: Sulfur Reduction by the Extremely Thermophilic Archaebacterium Pyrodictium occultum.
abstract: The relationship between growth and biological sulfur reduction for the extremely thermophilic archaebacterium Pyrodictium occultum was studied over a temperature range of 98 to 105 degrees C. The addition of yeast extract (0.2 g/liter) to the medium was found to increase hydrogen sulfide production significantly, especially at higher temperatures. Sulfide production in uninoculated controls with and without yeast extract was noticeable but substantially below the levels observed in samples containing the microorganism.
authors.affiliation: Department of Chemical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218.
authors.forename: A K
authors.initials: AK
authors.lastname: Parameswaran
authors.forename: C N
authors.initials: CN
authors.lastname: Provan
authors.forename: F J
authors.initials: FJ
authors.lastname: Sturm
authors.forename: R M
authors.initials: RM
authors.lastname: Kelly