Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile Eggs
<div><table cellspacing="0" cellpadding="0" align="left"><tbody><tr><td align="left" valign="top"><p><strong><em>Background</em></strong><strong>:<em> </em></strong> ...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2016-08-01
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| Series: | Journal of Medical Bacteriology |
| Subjects: | |
| Online Access: | http://jmb.tums.ac.ir/index.php/jmb/article/view/186 |
| _version_ | 1819071865632587776 |
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| author | Mohammad Sadegh Madadi Mohammad Hassanzadeh Fateme Karimnezhad |
| author_facet | Mohammad Sadegh Madadi Mohammad Hassanzadeh Fateme Karimnezhad |
| author_sort | Mohammad Sadegh Madadi |
| collection | DOAJ |
| description | <div><table cellspacing="0" cellpadding="0" align="left"><tbody><tr><td align="left" valign="top"><p><strong><em>Background</em></strong><strong>:<em> </em></strong> Young chickens are more susceptible to <em>Salmonella</em> colonization than older ones that have developed resistance with age as native microflora become established. </p><p><strong><em>Methods</em></strong><strong>:<em> </em></strong> In this study, two groups of fertile eggs were inoculated with 20 CFU of <em>hilA</em> or parent strains of <em>S</em>. <em>enteritidis</em>. Presence and number of <em>Salmonella</em> cells inside the homogenized egg contents were determined on the 2nd, 5th, 8th, 12th, 17th and 21th day of incubation period. </p><p><strong><em>Results</em></strong><strong>:<em> </em></strong><em> </em> High infectivity rate of <em>Salmonella</em> contamination were observed in the <em>hilA</em> group eggs, three genes for <em>S. enteritidis</em> identification were detected from isolated colonies of both groups of eggs. The gene <em>hilA</em> was only detected in isolated colonies of the standard group. </p><p><strong><em>Conclusion</em></strong><strong>:<em> </em></strong> These findings indicated that <em>hilA</em> mutant of <em>Salmonella</em> is able to rapidly multiply much higher than wild-type strain but, support more pathogenicity of wild-type strain of <em>Salmonella</em> compared to mutant strain.</p></td></tr></tbody></table></div> |
| first_indexed | 2024-12-21T17:28:37Z |
| format | Article |
| id | doaj.art-e64b74cef36145c3b413bce217e7fe6d |
| institution | Directory Open Access Journal |
| issn | 2251-8649 2322-2581 |
| language | English |
| last_indexed | 2024-12-21T17:28:37Z |
| publishDate | 2016-08-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Journal of Medical Bacteriology |
| spelling | doaj.art-e64b74cef36145c3b413bce217e7fe6d2022-12-21T18:55:59ZengTehran University of Medical SciencesJournal of Medical Bacteriology2251-86492322-25812016-08-0151-25254189Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile EggsMohammad Sadegh Madadi0Mohammad Hassanzadeh1Fateme Karimnezhad2Faculty of Veterinary medicine, University of Tabriz, Tabriz, Iran.Faculty of Veterinary medicine, University of Tehran, Tehran, Iran.Department of food Hygiene, Science and Research Branch, Islamic Azad University, Tehran, Iran.<div><table cellspacing="0" cellpadding="0" align="left"><tbody><tr><td align="left" valign="top"><p><strong><em>Background</em></strong><strong>:<em> </em></strong> Young chickens are more susceptible to <em>Salmonella</em> colonization than older ones that have developed resistance with age as native microflora become established. </p><p><strong><em>Methods</em></strong><strong>:<em> </em></strong> In this study, two groups of fertile eggs were inoculated with 20 CFU of <em>hilA</em> or parent strains of <em>S</em>. <em>enteritidis</em>. Presence and number of <em>Salmonella</em> cells inside the homogenized egg contents were determined on the 2nd, 5th, 8th, 12th, 17th and 21th day of incubation period. </p><p><strong><em>Results</em></strong><strong>:<em> </em></strong><em> </em> High infectivity rate of <em>Salmonella</em> contamination were observed in the <em>hilA</em> group eggs, three genes for <em>S. enteritidis</em> identification were detected from isolated colonies of both groups of eggs. The gene <em>hilA</em> was only detected in isolated colonies of the standard group. </p><p><strong><em>Conclusion</em></strong><strong>:<em> </em></strong> These findings indicated that <em>hilA</em> mutant of <em>Salmonella</em> is able to rapidly multiply much higher than wild-type strain but, support more pathogenicity of wild-type strain of <em>Salmonella</em> compared to mutant strain.</p></td></tr></tbody></table></div>http://jmb.tums.ac.ir/index.php/jmb/article/view/186Salmonella enteritidishilAFertile eggs |
| spellingShingle | Mohammad Sadegh Madadi Mohammad Hassanzadeh Fateme Karimnezhad Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile Eggs Journal of Medical Bacteriology Salmonella enteritidis hilA Fertile eggs |
| title | Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile Eggs |
| title_full | Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile Eggs |
| title_fullStr | Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile Eggs |
| title_full_unstemmed | Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile Eggs |
| title_short | Comparative Colonization of hilA and Parent Strains of Salmonella enteritidis in Fertile Eggs |
| title_sort | comparative colonization of hila and parent strains of salmonella enteritidis in fertile eggs |
| topic | Salmonella enteritidis hilA Fertile eggs |
| url | http://jmb.tums.ac.ir/index.php/jmb/article/view/186 |
| work_keys_str_mv | AT mohammadsadeghmadadi comparativecolonizationofhilaandparentstrainsofsalmonellaenteritidisinfertileeggs AT mohammadhassanzadeh comparativecolonizationofhilaandparentstrainsofsalmonellaenteritidisinfertileeggs AT fatemekarimnezhad comparativecolonizationofhilaandparentstrainsofsalmonellaenteritidisinfertileeggs |