taxonomy, morphology and phylogeny

Effect of nematicidal Bacillus thuringiensis strains on free-living nematodes .2. Ultrastructural analysis of the intoxication process in Caenorhabditis elegans

Publication Type:Journal Article
Year of Publication:1996
Authors:G. Borgonie, Claeys, M., Leyns, F., Arnaut, G., DeWaele, D., Coomans, A.
Journal:Fundamental and Applied NematologyFundamental and Applied Nematology
ISBN Number:1164-5571
Accession Number:WOS:A1996VH93500001

Transmission electron microscopy is used to describe the intoxication in Caenorhabditis elegans, feeding on toxic spore/crystals of Bacillus thuringiensis. The toxin acts directly against the intestine, first by affecting the anteriormost ring of four intestinal cells. Over a period of 12 hours, these cells lose much of their volume, the microvilli regress slowly, several cell organelles undergo dramatic change and are ultimately destroyed. No rupture of the apical intestinal cell membrane is observed. Non-intestinal tissues seem unaffected. This study indicates considerable ultrastructural differences in the mode of action between the nematicidal toxin and the insecticidal crystal toxins from B. thuringiensis.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith