ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (1): 116-122.doi: 10.11843/j.issn.0366-6964.2014.01.016

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Effects of Different Bacterial Culture Condition on the Expression of Avian Salmonella Fimbrial Genes

GONG Jian-sen1,WANG Xin1,HAN Xian-gan2,ZHU Chun-hong1,YU Yan1,LIU Xue-xian1,XU Bu1*   

  1. (1.Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, China;2.Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China)
  • Received:2013-07-29 Online:2014-01-23 Published:2014-01-23

Abstract:

The objective of the present study was to investigate the distribution of fimbrial genes in some avian Salmonella serotypes and the expression differences of fimbrial genes under different bacterial culture conditions.Seventeen kinds of fimbrial operon genes in Salmonella pullorumSalmonella gallinarumSalmonella typhimurium and Salmonella enteritidis were detected by PCRand expression of fimbrial genes in the above Salmonella strains under three different culture conditions which include static brothshaken broth and static plate were detected by
RT
-PCR.Results showed that the four Salmonella serotypes had different fimbrial genotypes10 of which were conservativeand the distribution of the other 7 fimbrial genes was different.RT-PCR detection results showed that the expression of fimbrial genes in different
serotypes cultured under three conditions had some differences
as the expression of fimbrial genes in Salmonella pullorum and Salmonella enteritidis cultured on static broth was more than that of others (P<0.05)while the difference in Salmonella gallinarum and Salmonella
typhimurium
was not significant (P>0.05).The results revealed that the four Salmonella serotypes had different fimbrial genotypes and the bacterial culture condition significantly impacted the expression of fimbrial genes in Salmonella pullorum and Salmonella enteritidis.

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