The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China

The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China

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 st...

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Main Authors: Li-li Zhu, Feng-cai Zou, Yu-lin Yan, Qi-hui Wang, Yong-qiang Shi, Wei-jie Qu
Format: Article
Language:English
Published: Hindawi Limited 2016-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2016/9157605
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spelling doaj-bac31bd453ef40c991e2bc30ba3bbf022020-11-24T21:45:14ZengHindawi LimitedThe Scientific World Journal2356-61401537-744X2016-01-01201610.1155/2016/91576059157605The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, ChinaLi-li Zhu0Feng-cai Zou1Yu-lin Yan2Qi-hui Wang3Yong-qiang Shi4Wei-jie Qu5Institute of Animal Science and Technology, Yunnan Agricultural University, Kunming 650051, ChinaInstitute of Animal Science and Technology, Yunnan Agricultural University, Kunming 650051, ChinaInstitute of Animal Science and Technology, Yunnan Agricultural University, Kunming 650051, ChinaInstitute of Animal Science and Technology, Yunnan Agricultural University, Kunming 650051, ChinaInstitute of Animal Science and Technology, Yunnan Agricultural University, Kunming 650051, ChinaInstitute of Animal Science and Technology, Yunnan Agricultural University, Kunming 650051, ChinaStaphylococcus 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.http://dx.doi.org/10.1155/2016/9157605
collection DOAJ
language English
format Article
sources DOAJ
author Li-li Zhu
Feng-cai Zou
Yu-lin Yan
Qi-hui Wang
Yong-qiang Shi
Wei-jie Qu
spellingShingle Li-li Zhu
Feng-cai Zou
Yu-lin Yan
Qi-hui Wang
Yong-qiang Shi
Wei-jie Qu
The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China
The Scientific World Journal
author_facet Li-li Zhu
Feng-cai Zou
Yu-lin Yan
Qi-hui Wang
Yong-qiang Shi
Wei-jie Qu
author_sort Li-li Zhu
title The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China
title_short The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China
title_full The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China
title_fullStr The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China
title_full_unstemmed The Characteristics of Staphylococcus aureus Small Colony Variant Isolated from Chronic Mastitis at a Dairy Farm in Yunnan Province, China
title_sort characteristics of staphylococcus aureus small colony variant isolated from chronic mastitis at a dairy farm in yunnan province, china
publisher Hindawi Limited
series The Scientific World Journal
issn 2356-6140
1537-744X
publishDate 2016-01-01
description 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.
url http://dx.doi.org/10.1155/2016/9157605
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