Phylogenetic analysis and confirmation of the endospore-forming nature ofPasteuria penetransbased on thespo0A gene
Authors:
- Alistair H BishopABAlistair H Bishop
- 1 August 2003
- journal article
- Published by Oxford University Press (OUP) in FEMS Microbiology Letters
- Vol. 225 (2) , 249-256
Abstract
Pasteuria penetrans is an obligate parasite of plant parasitic nematodes and has yet to be grown in vitro. We have cloned the pivotal sporulation gene, spo0A, which is the first whole gene yet to come from this organism. Partial spo0A sequences were also obtained from the related bacteria, Pasteuria ramosa and Alicyclobacillus acidocaldarius. Phylogenetic analyses using the spo0A sequence data from this and previous studies confirmed the closeness of the genera Pasteuria and members of the supergenus Bacillus. A segment of the spo0A gene was also used to show that genetic heterogeneity exists within and between populations of P. penetrans. This may explain, partly at least, the variability of P. penetrans as a biological control agent of nematodes.Keywords
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