application of combination, immunomagnetic separation plus multiplex pcr for the detection and identification of salmonella enterica subspecies enterica serovar typhimurium in bovine diarrhoeic fecal samples
نویسندگان
چکیده
a total of 400 bovine diarrhoeic fecal specimens were obtained and conventional microbial culture, immunomagnetic separation and multiplex pcr were simultaneously carried out on samples. for detection of salmonella at genus level, inv-a universal primer was selected. in order to identifiing of salmonella typhimurium, specific primers of rfbj, fljb and flic related to gene sequence of o4, h2:1,2 and h1: i were used, respectively. results showed, 33(8.5%)were culture positive for salmonella serotypes. however, salmonella typhimurium with(66.7%), salmonella dublin(9.1%), salmonella virchow(6.1%), salmonella gloucester(6.1%), salmonella enteritidis(3%), salmonella georgia(3%), salmonella augustenborg(3%)and salmonella lindenburg(3%), were the most common isolated serovars, respectively. in the ims+multiplex pcr four amplified products(663,526,284 and 183 bp) were found in all specimens which had typhimurium serovar(1,4,5,12:i:1,2)from rfbj,fljb,inv-a and flic genes, respectively. results showed that detection and identification of salmonella typhimurium using specific primers of o4, h2:1,2 and h1: i antigens can be useful.
منابع مشابه
Detection of Salmonella enterica Serovar Typhimurium from Avians Using Multiplex-PCR
Salmonella enterica serovar Typhimurium and S.enterica serovar Enteritidis are the most frequently isolated serovars from food-borne diseases throughout the world. According to their antigenic profiles, salmonella shows different disease syndromes and host specificities. It is necessary and important to discriminate salmonella serovars from each other in order to ensure that each pathogen and i...
متن کاملdetection of salmonella enterica serovar typhimurium from avians using multiplex-pcr
salmonella enterica serovar typhimurium and s.enterica serovar enteritidis are the most frequently isolated serovars from food-borne diseases throughout the world. according to their antigenic profiles, salmonella shows different disease syndromes and host specificities. it is necessary and important to discriminate salmonella serovars from each other in order to ensure that each pathogen and i...
متن کاملMultilocus Sequence Typing of the Clinical Isolates of Salmonella Enterica Serovar Typhimurium in Tehran Hospitals
Background: Salmonella enterica serovar Typhimurium is one of the most important serovars of Salmonella enterica and is associated with human salmonellosis worldwide. Many epidemiological studies have focused on the characteristics of Salmonella Typhimurium in many countries as well as in Asia. This study was conducted to investigate the genetic characteristics of Salmonella Typhimurium using m...
متن کاملOriginal Article Detection of Salmonella enterica Serovar Typhimurium from Avians Using Multiplex-PCR
Salmonella enterica serovar Typhimurium and S.enterica serovar Enteritidis are the most frequently isolated serovars from food-borne diseases throughout the world. According to their antigenic profiles, salmonella shows different disease syndromes and host specificities. It is necessary and important to discriminate salmonella serovars from each other in order to ensure that each pathogen and i...
متن کاملpcr-restriction fragment length polymorphism analysis of fljb gene in salmonella enterica subspecies enterica serovar typhimurium isolated from avians
background and objectives : economic constraint of diseases arising from salmonella typhimurium causes the study of this zoonotic organism more important. most studies on identification and characterization of s. typhimurium are conducted at dna level. flagellin genes (flic and fljb genes encoding phase-1 and phase-2 flagella, respectively) are useful as a model system for studying genetic diff...
متن کاملPCR-Restriction Fragment Length Polymorphism analysis of fljB gene in Salmonella enterica subspecies enterica serovar Typhimurium isolated from avians
BACKGROUND AND OBJECTIVES Economic constraint of diseases arising from Salmonella Typhimurium causes the study of this zoonotic organism more important. Most studies on identification and characterization of S. Typhimurium are conducted at DNA level. Flagellin genes (fliC and fljB genes encoding phase-1 and phase-2 flagella, respectively) are useful as a model system for studying genetic differ...
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تحقیقات دامپزشکیجلد ۶۳، شماره ۱، صفحات ۴۱-۴۶
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