Biology
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.518..193k&link_type=abstract
In: Proceedings of the First European Workshop on Exo-Astrobiology, 16 - 19 September 2002, Graz, Austria. Ed.: Huguette Lacoste
Biology
1
Origin Of Life, Organisms
Scientific paper
One of the larger wood-ingesting flagellates in the hindgut of the most primitive existing termite species Mastotermes darwiniensis is the Archaezoon Mixotricha paradoxa, a member of the order Trichomonadida. The pear-shaped cells are about 500 †m long and 250 †m in diameter. The surface of Mixotricha paradoxa shows a highly ordered pattern of rod shaped bacteria and in addition it is convered by a dense carpet of spirochetes with the exception of the posterior ingestive zone. The rod shaped bacteria and the spirochetes are attached to regularly arranged protrusions of the cell surface, the so called brachets. So far, it is not possible to cultivate neither Mixotricha paradoxa nor its ectosymbiotic spirochetes or rod-shaped bacteria. As a consequence there is no reliable information about their systematic position. In this study we examined the phylogenetic position of the ectosymbiotic spirochetes and the rod shaped bacterium of Mixotricha paradoxa.
Fröhlich Jürgen
König Helmut
Li Li
Wenzel Marika
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