Journal of Food, Agriculture and Environment

Resuscitation of eight-year VBNC Providencia stuartii

Author(s):

Amel Dhiaf ^1*, Amina Bakhrouf ²

Recieved Date: 2008-01-08, Accepted Date: 2008-03-25

Abstract:

Providencia stuartii was stressed by incubation in soil microcosms for eight years. After five 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 Providencia stuartii was obtained by incubation in nutrient broth even after eight years of starvation. To see whether the samples contained the same strain of Providencia stuartii inoculated eight years ago, the complete 16S rRNA gene was PCR amplified and sequenced from initial, stressed and revived strains of Providencia stuartii. The 16S rRNA gene sequences from eight-year stressed strains were homologous with a high degree of similarity to the GenBank reference strain and were identical to each other.

Keywords:

Providencia stuartii, soil, stress, resuscitation

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Journal: Journal of Food, Agriculture and Environment
Year: 2008
Volume: 6
Issue: 2
Category: Environment
Pages: 447-450

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