Survey of Motile Microaerophilic Bacterial Morphotypes in the Oxygen Gradient above a Marine Sulfidic Sediment

by: Roland Thar, Tom Fenchel

Appl. Environ. Microbiol., Vol. 71, No. 7. (1 July 2005), pp. 3682-3691.

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Abstract

Enrichment cultures for free-swimming microaerophilic bacteria were prepared from marine sulfidic sediment samples (Niva Bay, Denmark). We observed nine different morphotypes; three of these morphotypes represented already-described species, i.e., Thiovulum majus, "Candidatus Ovobacter propellens," and an as-yet-unnamed large vibrioid bacterium. In addition, we observed several morphotypes of spirilla and one vibrioid morphotype. A common feature of all investigated bacteria was that they aggregated chemotactically at the oxic-anoxic interface, whereas preferred oxygen concentration were in the range of 1 to 10 microM. The motile behavior and flagellar dynamics are analyzed in detail with an emphasis on spirilla. 10.1128/AEM.71.7.3682-3691.2005

@article{citeulike:2984048, abstract = {Enrichment cultures for free-swimming microaerophilic bacteria were prepared from marine sulfidic sediment samples (Niva Bay, Denmark). We observed nine different morphotypes; three of these morphotypes represented already-described species, i.e., Thiovulum majus, "Candidatus Ovobacter propellens," and an as-yet-unnamed large vibrioid bacterium. In addition, we observed several morphotypes of spirilla and one vibrioid morphotype. A common feature of all investigated bacteria was that they aggregated chemotactically at the oxic-anoxic interface, whereas preferred oxygen concentration were in the range of 1 to 10 {micro}M. The motile behavior and flagellar dynamics are analyzed in detail with an emphasis on spirilla. 10.1128/AEM.71.7.3682-3691.2005}, author = {Thar, Roland and Fenchel, Tom }, citeulike-article-id = {2984048}, doi = {10.1128/AEM.71.7.3682-3691.2005}, journal = {Appl. Environ. Microbiol.}, keywords = {gradient, mat, oxygen}, month = {July}, number = {7}, pages = {3682--3691}, posted-at = {2008-07-10 08:54:14}, priority = {2}, title = {Survey of Motile Microaerophilic Bacterial Morphotypes in the Oxygen Gradient above a Marine Sulfidic Sediment}, url = {http://dx.doi.org/10.1128/AEM.71.7.3682-3691.2005}, volume = {71}, year = {2005} }

RIS record

TY - JOUR ID - citeulike:2984048 L3 - citeulike-article-id:2984048 TI - Survey of Motile Microaerophilic Bacterial Morphotypes in the Oxygen Gradient above a Marine Sulfidic Sediment JF - Appl. Environ. Microbiol. VL - 71 IS - 7 SP - 3682 EP - 3691 N2 - Enrichment cultures for free-swimming microaerophilic bacteria were prepared from marine sulfidic sediment samples (Niva Bay, Denmark). We observed nine different morphotypes; three of these morphotypes represented already-described species, i.e., Thiovulum majus, "Candidatus Ovobacter propellens," and an as-yet-unnamed large vibrioid bacterium. In addition, we observed several morphotypes of spirilla and one vibrioid morphotype. A common feature of all investigated bacteria was that they aggregated chemotactically at the oxic-anoxic interface, whereas preferred oxygen concentration were in the range of 1 to 10 {micro}M. The motile behavior and flagellar dynamics are analyzed in detail with an emphasis on spirilla. 10.1128/AEM.71.7.3682-3691.2005 KW - gradient KW - mat KW - oxygen AU - Thar, Roland AU - Fenchel, Tom PY - 2005/07/01/ UR - http://dx.doi.org/10.1128/AEM.71.7.3682-3691.2005 ER -

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