ctpa disteribution in listeria monosytogenes isolates

نویسندگان
چکیده

introduction: listeria monosytogenes is a gram-positive organism, frequently found in the environment and is responsible for serious food-born diseases such as perinatal infections, septicaemia and meningoencephalitis in humans and animals. materials & methods: distribution of the ctpa determinant among l. monosytogenes isolated from environmental and clinical samples was investigated using pcr to identify the homologous dna in 69 isolates, 38% of tested isolates contained the ctpa determinant. results: dna homologous to ctpa was not detected in all strains. our results showed that 90% of clinical and dairy isolates, 85% of environmental isolates and 7% of poultry isolates op l. monocytogenes contained ctpa in chromosomal dna. conclusion: it is possible that the increased incidence of ctpa in strains contributes to their association with clinical infection. the occurrence of ctpa was less frequent in poultry isolates and may explain why these strains are not associated with clinical case.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

پراکندگی ژن CtpA در لیستریا مونوسیتوژنزDistribution of ctpA Gene in Listeriamonocytogenes

        Background & Aim: Listeria monocytogenes has potentiality to cause serious invasive disease in humans and in more than 40 animal species. L. monocytogenes is transmitted from soft cheese, milk, raw meat and sausages to human. The present study was undertaken to find the frequency of L. monocytogenes in poultry, domestic animals, sausage, cheese, milk, and also to determine ctpA(copper t...

متن کامل

investigation ctpa gene among listeria monocytogenes and transferring it into e.coli

introduction: listeria monocytogenes is a gram positive bacterium, often found in the environment and is responsible for serious food-borne diseases such as perinatal infections, septicaemia and meningoencephalitis in humans and animals. for this reason, distribution of the ctp a (copper transport protein a) among l. monocytogenes was isolated from clinical, environment, dairy, and poultry samp...

متن کامل

investigation of ctpa in listeria monocytogenes and transfer it to e.coil

introduction: listeria monocytogenes is a gram positive bacteria, frequently found in the environment and is responsible for food-borne disease such as perinatal infections, septicameia and meningeonceohalitis in human and animals. material and methods: for this reason, distribution of the ctpa determinate among l. monocytogenes isolated from clinical environment, diry and poultry samples were ...

متن کامل

Biofilm Formation among Clinical and Food Isolates of Listeria monocytogenes

Objective. A total of 725 Listeria monocytogenes isolates, 607 from various foods and 118 from clinical cases of listeriosis, were investigated concerning their ability to form biofilms, at 4°C during 5 days and at 37°C during 24 h. Methods. Biofilm production was carried out on polystyrene tissue culture plates. Five L. monocytogenes isolates were tested for biofilm formation after being expos...

متن کامل

Characterization of Listeria monocytogenes isolates by CAMP test

In this study, a total 28 Listeria monocytogenes field isolates obtained from different animal species were characterized phenotypically by CAMP test. Characterization by CAMP test on all the 28 field isolates revealed positive reaction, of which twenty-three isolates showed characteristics enhancement of haemolytic zone with S. aureus on 5 % Sheep Blood Agar (SBA) and five isolates showed weak...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
cell journal

جلد ۲، شماره ۳، صفحات ۱۴۱-۱۴۶

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023