Title of article :
The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China
Author/Authors :
Zhu, Li-li Institute of Animal Science and Technology - Yunnan Agricultural University - Kunming 650051 - China , Zou, Feng-cai Institute of Animal Science and Technology - Yunnan Agricultural University - Kunming 650051 - China , Yan, Yu-lin Institute of Animal Science and Technology - Yunnan Agricultural University - Kunming 650051 - China , Wang, Qi-hui Institute of Animal Science and Technology - Yunnan Agricultural University - Kunming 650051 - China , Shi, Yong-qiang Institute of Animal Science and Technology - Yunnan Agricultural University - Kunming 650051 - China , Qu, Wei-jie Institute of Animal Science and Technology - Yunnan Agricultural University - Kunming 650051 - China
Abstract :
Staphylococcus aureus is a major causative agent leading to bovine mastitis and has specific phonotypical characteristics including small colony, slow growth, and decreased hemolysis, therefore named as the small colony variants (SCVs). Out of 30 tested samples
of the chronic S. aureus cases, one strain of SCVs (S. aureus SCV22) was isolated along with its parental strains (S. aureus11). S. aureus SCV22 showed a slow growth rate when it is compared with the parental strain. However, their resistant patterns were
similar. Meanwhile, S. aureus SCV22 depicted the lower rate of apoptosis in bovine mammary epithelial cells. These findings of the present study presented the unique characteristics of S. aureus SCV22 for the first time in Yunnan province, which provided a prophase foundation for further study about the pathogenesis of S. aureus SCVs in chronic mastitis.
Keywords :
Characteristics , Staphylococcus aureus , Small Colony , Variant Isolated , Chronic Mastitis , Dairy Farm , Yunnan Province , China , aureus SCV22 , aureus SCVs
Journal title :
The Scientific World Journal
