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Genetic diversity and phylogenetic relationships of Clostridium perfringens strains isolated from mastitis and enteritis in Egyptian dairy farms
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Genetic diversity and phylogenetic relationships of Clostridium perfringens strains isolated from mastitis and enteritis in Egyptian dairy farms
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Journal Article
Genetic diversity and phylogenetic relationships of Clostridium perfringens strains isolated from mastitis and enteritis in Egyptian dairy farms
2024
Overview
Background
Clostridium perfringens
, a common environmental bacterium, is responsible for a variety of serious illnesses including food poisoning, digestive disorders, and soft tissue infections. Mastitis in lactating cattle and sudden death losses in baby calves are major problems for producers raising calves on dairy farms. The pathogenicity of this bacterium is largely mediated by its production of various toxins.
Results
The study revealed that Among the examined lactating animals with a history of mastitis, diarrheal baby calves, and acute sudden death cases in calves,
C. perfringens
was isolated in 23.5% (93/395) of the total tested samples. Eighteen isolates were obtained from mastitic milk, 59 from rectal swabs, and 16 from the intestinal contents of dead calves. Most of the recovered
C. perfringens
isolates (95.6%) were identified as type A by molecular toxinotyping, except for four isolates from sudden death cases (type C). Notably,
C. perfringens
was recovered in 100% of sudden death cases compared with 32.9% of rectal swabs and 9% of milk samples. This study analyzed the phylogeny of
C. perfringens
using the plc region and identified the plc region in five Egyptian bovine isolates (milk and fecal origins). Importantly, this finding expands the known data on
C. perfringens
phospholipase C beyond reference strains in GenBank from various animal and environmental sources.
Conclusion
Phylogenetic analyses of nucleotide sequence data differentiated between strains of different origins. The
plc
sequences of Egyptian
C. perfringens
strains acquired in the present study differed from those reported globally and constituted a distinct genetic ancestor.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Animals
/ Bacteria
/ Biomedical and Life Sciences
/ Calves
/ Cattle
/ Cattle Diseases - microbiology
/ Clostridium Infections - microbiology
/ Clostridium Infections - veterinary
/ Clostridium perfringens - classification
/ Clostridium perfringens - genetics
/ Clostridium perfringens - isolation & purification
/ Clostridium perfringens - pathogenicity
/ Dairy
/ Dairying
/ Death
/ Diarrhea
/ Egypt
/ Farms
/ Feces
/ Female
/ Food
/ Genes
/ Identification and classification
/ Mastitis
/ Mastitis, Bovine - microbiology
/ Milk
/ Mycology
/ Neomycin
/ Origins
/ Rectum
/ Toxins
/ Type C Phospholipases - genetics
/ Virology
