Resuscitation of eleven-year VBNC Citrobacter
Autor: | Amel Dhiaf, Amina Bakhrouf, Karl-Paul Witzel |
---|---|
Rok vydání: | 2008 |
Předmět: |
Microbiology (medical)
Citrobacter Resuscitation Time Factors Strain (chemistry) Inoculation Public Health Environmental and Occupational Health Genes rRNA Biology biology.organism_classification 16S ribosomal RNA Polymerase Chain Reaction Culture Media Microbiology Citrobacter freundii RNA Bacterial Infectious Diseases Seawater Waste Management and Disposal Incubation Nutrient broth Water Science and Technology |
Zdroj: | Journal of Water and Health. 6:565-568 |
ISSN: | 1996-7829 1477-8920 |
Popis: | Citrobacter freundii strain WA1 was stressed by incubation in seawater microcosms for eleven years. After two years of starvation, no culturable strain was observed. Incubation of samples in nutrient-rich broth medium not supplemented with growth factors, however, allowed resuscitation of VBNC cells so that subsequent plating yielded observable colonies for significantly extended periods of time. Recovery of VBNC Citrobacter freundii was obtained by incubation in nutrient broth even after eleven years of starvation. To see whether the samples contained the same strain of Citrobacter freundii inoculated 11 years ago. The complete 16S rRNA gene was PCR amplified and sequenced from initial, stressed and revived strains of Citrobacter freundii strain WA1.The 16S rRNA gene sequences from eleven-year stressed strains were homologous with a high degree of similarity to the GenBank reference strain and were identical to each other. |
Databáze: | OpenAIRE |
Externí odkaz: |