1887

Abstract

Abstract

The diversity among 43 isolates of the genus was studied by determining levels of deoxyribonucleic acid relatedness (SI nuclease method) and DNA base compositions. The guanine + cytosine contents ranged from 66 to 75 mol%. At least nine genomic species were differentiated, including three genomic species among strains compatible with members of the genus , five genomic species among strains compatible with members of the family Elaeagnaceae, and one genomic species among strains compatible with members of the genus Genomic species 1, which contained proposed type strain CpI1 and nine strains that were compatible with members of the genus and were 64 to 97 % related to strain ACoN24d, is Four genomic species contained single strains that were 0 to 30% related to the other genomic species. Typical strains isolated from members of the genus were found to be very homogeneous (69 to 100% related to strain ORS020606) and clearly separated from atypical strains. The nine genomic species delineated in this study cannot be named since no phenotypic tests are available for identification.

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1989-10-01
2024-04-19
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