Shapiro, Orr H. and Hatzenpichler, Roland and Buckley, Daniel H. and Zinder, Stephen H. and Orphan, Victoria J. (2011) Multicellular photo-magnetotactic bacteria. Environmental Microbiology Reports, 3 (2). pp. 233-238. ISSN 1758-2229. https://resolver.caltech.edu/CaltechAUTHORS:20110404-113053920
Full text is not posted in this repository. Consult Related URLs below.
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20110404-113053920
Abstract
Multicellular magnetotactic bacteria (MMB) are unique microorganisms typically comprised of 10–40 bacterial cells arranged around a central acellular compartment. Their life cycle has no known unicellular stage and division occurs by separation of a single MMB aggregate into two identical offspring. In this study, South-seeking multicellular magnetotactic bacteria (ssMMB) were enriched from a New England salt marsh. When exposed to light, ssMMB reversed their magnetotactic behaviour to become North-seeking. The exposure time needed to generate the reversal response varied with light wavelength and intensity. Extensive exposure to light appeared to be lethal. This is the first report of a Northern hemisphere MMB displaying South-seeking behaviour and the first time a MMB is found to exhibit photo-magnetotaxis. We suggest that this mechanism enables ssMMB to optimize their location with regard to chemical gradients and light intensities, and propose a model to explain the peculiar balance between photo- and magnetotaxis.
| Item Type: | Article | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Related URLs: |
| ||||||||||||||
| ORCID: |
| ||||||||||||||
| Additional Information: | © 2010 Society for Applied Microbiology and Blackwell Publishing Ltd. Received 1 February, 2010; accepted 17 August, 2010. Article first published online: 30 Sep. 2010. This study was performed during the 2009 Microbial Diversity course at the Marine Biological Laboratory, Woods Hole, MA, USA. The Microbial Diversity course was supported by funding from the US National Science Foundation, the US Department of Energy, The Gordon and Betty Moore Foundation, the Howard Hughes Medical Foundation and the Marine Biological Laboratories. OHS and RH acknowledge financial support by The Gordon and Betty Moore Foundation, the University of Vienna, the Moshe Shilo Memorial Fund, and the Ben Gurion University of the Negev. OHS is recipient of a Levi-Eshkol PhD-fellowship from the Israeli Ministry of Science. RH is recipient of a PhD-fellowship (DOC) of the Austrian Academy of Sciences. OHS and RH thank all faculty, lecturers, students (a.k.a. the micronauts) and teaching assistants (most of all Cristina Moraru) for a great summer. Heather Fullerton is acknowledged for help with sampling. We thank Alexander Petroff for helpful discussions, and Zeiss for providing microscopic equipment and technical support. | ||||||||||||||
| Funders: |
| ||||||||||||||
| Issue or Number: | 2 | ||||||||||||||
| Record Number: | CaltechAUTHORS:20110404-113053920 | ||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20110404-113053920 | ||||||||||||||
| Official Citation: | Shapiro, O. H., Hatzenpichler, R., Buckley, D. H., Zinder, S. H. and Orphan, V. J. (2011), Multicellular photo-magnetotactic bacteria. Environmental Microbiology Reports, 3: 233–238. doi: 10.1111/j.1758-2229.2010.00215.x | ||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||
| ID Code: | 23239 | ||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||
| Deposited By: | Jason Perez | ||||||||||||||
| Deposited On: | 04 Apr 2011 21:36 | ||||||||||||||
| Last Modified: | 09 Mar 2020 13:18 |
Repository Staff Only: item control page
