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Appl Environ Microbiol. 1987 July; 53(7): 1519-1524
Copyright © 1987, American Society for Microbiology. All Rights Reserved.

Diversity among Opine-Utilizing Bacteria: Identification of Coryneform Isolates

Guy Tremblay, Ronald Gagliardo, W. Scott Chilton and Patrice Dion*

1 Département de Phytologie, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Quebec, Canada GIK 7P4, and Department of Botany, North Carolina State University, Raleigh, North Carolina 276952

ABSTRACT

Bacteria were isolated from soil and crown gall tumors by selection in minimal medium with an opine, such as succinamopine or mannopine, as the sole carbon source. The isolates were characterized for the pattern of opine utilization and identified. They were classified as mannityl opine or imino diacid utilizers and exhibited specificity of utilization similar to that described previously for Agrobacterium species. A minority of isolates were gram negative and were identified as Agrobacterium or Pseudomonas species; most were gram positive and belonged to the coryneform group. These results indicate that any specific effect of opines on the ecology of Agrobacterium tumefaciens is modulated by activities of other types of soil- and plant-associated bacteria.

FOOTNOTES

* Corresponding author.

Appl Environ Microbiol. 1987 July; 53(7): 1519-1524
Copyright © 1987, American Society for Microbiology. All Rights Reserved.



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Copyright © 1987 by the American Society for Microbiology. All rights reserved.