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The effect of prolonged storage on the virulence of isolates of Bacillus anthracis obtained from environmental and animal sources in the Kars Region of Turkey    
Yazarlar
 Fatih BÜYÜK Fatih BÜYÜK
Kafkas Üniversitesi, Türkiye
 Mitat ŞAHİN Mitat ŞAHİN
Kafkas Üniversitesi, Türkiye
C Cooper
Türkiye
 Aliye GÜLMEZ SAĞLAM Aliye GÜLMEZ SAĞLAM
Kafkas Üniversitesi, Türkiye
L Baillie
Türkiye
Dr. Öğr. Üyesi Elif ÇELİK Dr. Öğr. Üyesi Elif ÇELİK
Kafkas Üniversitesi, Türkiye
 Doğan AKÇA Doğan AKÇA
Kafkas Üniversitesi, Türkiye
 Salih OTLU Salih OTLU
Kafkas Üniversitesi, Türkiye
Özet
The stability of the plasmid-mediated virulence factors of Bacillus anthracis, a tripartite toxin located on pXO1 and an antiphagocytic capsule encoded by genes located on pXO2, following long-term storage was investigated. A collection of 159 isolates of B. anthracis were collected from the Kars region of Turkey between 2000 and 2013 and stored at -20°C in Brucella broth supplemented with 20% glycerine. A total of 142 isolates were recovered of which one failed to express a capsule upon primary culture. A further 35 isolates yielded a mixture of mucoid and non-mucoid colonies; the majority of which had lost the pXO2 plasmid as determined by PCR analysis. Results would suggest that pXO2 is more unstable than pXO1 and that this instability increases with the length of storage. It is possible that the pXO2-deficient isolates of B. anthracis described here could be developed into a vaccine to treat at risk animals in the Kars region as many animal vaccines are based upon pXO2 deficiency.
Anahtar Kelimeler
Bacillus anthracis | pXO1 | pXO2 | Storage | Vaccine | Virulence
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı FEMS Microbiology Letters
Dergi ISSN 0378-1097
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 07-2015
Cilt No 362
Sayı 13
Doi Numarası 10.1093/femsle/fnv102