von Juterzenka, Karen and Reichardt, W. (1991) Epizoic bacterial growth on a benthic macro-invertebrate Halicryptus spinulosus (Priapulida). Kieler Meeresforschungen - Sonderheft, 8 . pp. 107-111.

Preview

Text Juterzenka_K_1991.pdf - Reprinted Version Available under License Creative Commons: Attribution 3.0. Download (494kB) | Preview

Abstract

The priapulid worm Halicryptus spinulosus which occurs in sulfide-rich mud of Kiel Bight is covered with a dense epizoic biofilm. Several types of filamentous microorganisms can be distinguished by SEM confirming previous conclusions based on TEM investigations. The most conspicuous forms are firmly attached filaments resembling Thiothrix that accumulate at the cuticular setae. Enrichment experiments indicate the presence of sulfide-oxidizing bacteria. A vector hypothesis is postulated which implies that the redox requirements of the (S)­-oxidizing constituents of the biofilm are matched by the worm's frequent moves between oxic and anoxic layers of the sediment.

Actions (login required)

View Item