Identification and biological characterization of a Streptococcus parasuis strain
10.3760/cma.j.cn112309-20230713-00209
- VernacularTitle:一株副猪链球菌的鉴定及生物学特征分析
- Author:
Shuiping HOU
1
;
Xinlong LIAO
;
Anna WANG
;
Xia TAO
;
Zhihong YU
;
Peng HE
;
Xinwei WU
Author Information
1. 广州市疾病预防控制中心微生物学检验部，广州 510440
- Keywords:
Streptococcus parasuis;
Biochemical reactions;
Average nucleotide identity;
16S rRNA
- From:
Chinese Journal of Microbiology and Immunology
2023;43(8):605-611
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To identify a strain isolated from the cerebrospinal fluid of a patient and to investigate its biological characteristics.Methods:The strain was analyzed by several methods including Gram staining, biochemical identification, 16S rRNA and recN gene sequencing, average nucleotide identity (ANI), antibiotic susceptibility testing and detection of drug resistance and virulence genes. Results:The strain was Gram-positive cocci and formed α-hemolytic colonies on the blood plate. It was identified as Streptococcus parasuis by 16S rRNA, recN gene and whole-genome sequencing. It was sensitive to multiple antibiotics and carried the genes encoding a variety of virulence factors such as adhesion. Conclusions:Streptococcus parasuis could cause human infection and be identified by whole-genome sequencing.
