Abstract
Endogenous bacterial contaminants isolated from infected cultures of Ilex dumosa nodal segments were identified as Stenotrophomonas maltophilia and Achromobacter sp. using 16S rDNA analysis. A range of antibiotics with different mechanism of actions and the commercial biocide PPM™ were tested for their capacity to repress the growth of Gram negative bacteria grown in liquid medium during the establishment phase of temporal immersion systems. The best results were obtained with the addition of 0.5 mg ml−1 cefotaxime to the culture media obtaining 100% of uncontaminated cultures without suppress of shoot growth.
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Abbreviations
- Ap:
-
Ampicilline
- Cf:
-
Cefotaxime
- Cm:
-
Chloramphenicol
- Gm:
-
Gentamycin
- Km:
-
Kanamycin
- Sm:
-
Streptomycin
- PPM™:
-
Plant preservative mixture™
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Acknowledgements
The authors are gratefully indebted to the supporting funding from ANPCyT (Grant no. 08-10849), CONICET, and Establecimiento Las Marías S.A. We extend our deep appreciation to Prof. Elsie O’Connor for English language checking. We thank anonymous reviewers for their critical comments.
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Luna, C., Collavino, M., Mroginski, L. et al. Identification and control of bacterial contaminants from Ilex dumosa nodal segments culture in a temporal immersion bioreactor system using 16S rDNA analysis. Plant Cell Tiss Organ Cult 95, 13–19 (2008). https://doi.org/10.1007/s11240-008-9408-7
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DOI: https://doi.org/10.1007/s11240-008-9408-7