A <Emphasis Type="Italic">Bacillus thuringiensis</Emphasis> Isolate Possessing a Spore-Associated Filament |
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| Authors: | Joanne Rampersad Ayub Khan David Ammons |
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| Institution: | (1) The University of the West Indies, School of Agriculture, Trinidad, West Indies, TT;(2) The University of the West Indies, School of Veterinary Medicine, Trinidad, West Indies, TT |
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| Abstract: | We report on a novel bacterium, isolated during a screen for environmental isolates of Bacillus thuringiensis, that possesses a novel filamentous structure. Nucleotide sequence from the isolate s 16S rRNA gene places the bacterium unambiguously within the Bacillus thuringiensis/Bacillus cereus group. Phase-contrast and electron microscopy indicate the presence of both a parasporal body and a long filament which are retained after sporulation. The filament is shown to consistently arise from the end of the exosporium and next to the parasporal body. Upon spore germination, the parasporal body/filament complex is retained on the cell wall of the resulting bacterium.Received: 4 March 2003 / Accepted: 18 April 2003 |
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