TABLE 1.

Sequences of the primers used in quantitative RT-PCR

Target gene	Primers	Size of PCR product (bp)
16S rRNA	5′-TGAGACACGGTCCAGACTCCTAC-3′	790
	5′-GTTGCGCTCGTTGCGGGACTTAAC-3′
speD	5′-GCTATGCTAATACCAATGATTCGCG-3′	447
	5′-TATCTCTAGTAAATCCCCGCACACG-3′
speE	5′-GATGATATTGTTCAAACAACTGAACGCG-3′	445
	5′-GAAGAAAAAAAACACCGTTCTGTGCTAC-3′