To identify the isolate, genomic DNA was extracted by Wizard®
genomic DNA purification kit (Promega) according to the manufacturer’s
procedure, and the 16S rDNA was amplified using the
universal primers FD1 (5-AGAGTTTGATCCTGGCTCAG) and RD1
(5-AAGGAGGTGATCCAGCC), as described previously [19]. Direct
sequencing of the PCR product was performed with the ABI Prism
Big Dye terminator cycle sequencing Ready Reaction Kit (ABI
Prism/PE Biosystems), and products were resolved on ABI Prism
3100-Avant. 16S rDNA sequence analysis were performed with the
ARB software package [20].