Abstract
ABSTRACTDesulfurococcus amylolyticus Z-533T, a hyperthermophilic crenarcheon, ferments peptide and starch, generating acetate, isobutyrate, isovalerate, CO2, and hydrogen. Unlike D. amylolyticus Z-1312, it cannot use cellulose and is inhibited by hydrogen. The reported draft genome sequence of D. amylolyticus Z-533T will help to understand the molecular basis for these differences.
Highlights
Desulfurococcus amylolyticus Z-533T, a hyperthermophilic crenarcheon, ferments peptide and starch, generating acetate, isobutyrate, isovalerate, CO2, and hydrogen
The 16S rRNA gene sequences of D. amylolyticus Z-533T differ by 0.1 to 0.3% from those of other D. amylolyticus strains, namely, Z-1312 and 1221n [2,3,4], which were formerly known as D. fermentans Z-1312 and D. kamchatkensis 1221n, respectively [5]
A genomic analysis of three desulfurococci will give insight into the mechanisms by which D. amylolyticus Z-1312 degrades cellulose and by which other strains are inhibited by hydrogen
Summary
Desulfurococcus amylolyticus Z-533T, a hyperthermophilic crenarcheon, ferments peptide and starch, generating acetate, isobutyrate, isovalerate, CO2, and hydrogen. The 16S rRNA gene sequences of D. amylolyticus Z-533T differ by 0.1 to 0.3% from those of other D. amylolyticus strains, namely, Z-1312 and 1221n [2,3,4], which were formerly known as D. fermentans Z-1312 and D. kamchatkensis 1221n, respectively [5]. Only D. amylolyticus Z-1312 degrades cellulose [2] and is not inhibited by the presence of hydrogen [6].
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