Giant bacteria
In common parlance, giant bacteria are those prokaryotes which clearly exceed the size ratios in the micrometer range customary for prokaryotes and which reach the size of eukaryotic protists or even multicellular cells.
The largest known representatives are
- Thiomargarita namibiensis , a spherical sulfur bacterium thatoccurson the seabed off Namibia and can even be seen with the naked eye with a diameter of up to 750 µm and a volume of 200,000,000 µm³ (0.2 µl).
- with this related, as yet unnamed sulfur bacteria from the Gulf of Mexico with a diameter of up to 375 µm.
- Epulopiscium fishelsoni from the intestines of surgeon fish with a size of up to 600 µm × 80 µm and a volume of 3,000,000 µm³.
- Beggiatoa species, filamentous sulfur bacteria, with a size of up to 160 µm × 50 µm and a volume of 1,000,000 µm³.
- Achromatium oxaliferum , an ellipsoidal sulfur bacterium that can grow to almost 100 µm in length and a volume of 80,000 µm³.
Individual evidence
- ↑ Focus, [1]
- ↑ Giants in the death zone . In: Der Spiegel . No. 33 , 2000 ( online ).
- ↑ a b c d Heide N. Schulz, Bo Barker Jørgensen: Big Bacteria . In: Annual Review of Microbiology . tape 55 , September 2001, p. 105-137 , doi : 10.1146 / annurev.micro.55.1.105 .
- ↑ Thueringer Allgemeine 17.04.1999 (PDF; 396 kB).
- ↑ Karen M. Kalanetra, Samantha B. Joye, Nicole R. Sunseri, Douglas C. Nelson: Novel vacuolate sulfur bacteria from the Gulf of Mexico reproduce by reductive division in three dimensions . In: Environmental Microbiology . tape 7 , no. 9 , 2005, p. 1451-1460 , doi : 10.1111 / j.1462-2920.2005.00832.x .
- ↑ Science Online [2]