黄沙鳖红底板病病原菌的分离鉴定及其毒力基因检测
以常规方法从患典型红底板病黄沙鳖的心脏、肝脏和腹水等处分离到5株病原菌,AP120NE、16S rRNA基因序列分析进行病原菌鉴定和确定其系统发育地位,PCR检测病原菌的6种毒力基因.结果表明,5株病原菌均为嗜水气单胞菌(Aeromoas hydrophila),与Aeromonas hydrophila QDC01菌株的亲源关系最近.6种毒力基因的阳性率,hly、Aer和Act为100%,ahal、Alt和ahp为80%;毒力基因型共3种,在5株菌株中的分布情况为hly+ Aer+ Alt+ Act+ ahal+ ahp+3株,hly+ Aer+ Alt-Act+ ahal+ ahp-1株,...
Saved in:
| Published in | 西南农业学报 Vol. 26; no. 5; pp. 2116 - 2121 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西大学动物科学技术学院/广西水生动物病害诊断实验室,广西南宁530005
2013
梧州市水产技术推广站,广西梧州543002%广西大学动物科学技术学院/广西水生动物病害诊断实验室,广西南宁,530005%广西水产技术推广总站,广西南宁,530022 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4829 |
Cover
| Summary: | 以常规方法从患典型红底板病黄沙鳖的心脏、肝脏和腹水等处分离到5株病原菌,AP120NE、16S rRNA基因序列分析进行病原菌鉴定和确定其系统发育地位,PCR检测病原菌的6种毒力基因.结果表明,5株病原菌均为嗜水气单胞菌(Aeromoas hydrophila),与Aeromonas hydrophila QDC01菌株的亲源关系最近.6种毒力基因的阳性率,hly、Aer和Act为100%,ahal、Alt和ahp为80%;毒力基因型共3种,在5株菌株中的分布情况为hly+ Aer+ Alt+ Act+ ahal+ ahp+3株,hly+ Aer+ Alt-Act+ ahal+ ahp-1株,hly+Aer+ Alt+ Act+ ahal-ahp+1株.试验所检测的5株嗜水气单胞菌的毒力基因型主要为hly+ Aer+ Alt+ Act+ ahal+ ahp+,Alt、ahp和ahal基因的缺失对嗜水气单胞菌的致病力没有影响. |
|---|---|
| Bibliography: | HUANG Yan-hua(Lab of Aquatic Animal Diseases Diagnosis, College of Animal Science and Technology, Guangxi University, Guangxi Nanning 530005,China;Aquaculture Technology Extending Stations of Wuzhou, Guangxi Wuzhou 543002, China) HUANG Jun(Lab of Aquatic Animal Diseases Diagnosis, College of Animal Science and Technology, Guangxi University, Guangxi Nanning 530005,China) HU Da-sheng(Guangxi Marine Products Technical Promotion Station, Guangxi Nanning 530022, China) SHI Jin-gu(Lab of Aquatic Animal Diseases Diagnosis, College of Animal Science and Technology, Guangxi University, Guangxi Nanning 530005,China) PENG Min-yi(Lab of Aquatic Animal Diseases Diagnosis, College of Animal Science and Technology, Guangxi University, Guangxi Nanning 530005,China) PENG Ya(Lab of Aquatic Animal Diseases Diagnosis, College of Animal Science and Technology, Guangxi University, Guangxi Nanning 530005,China) Trionyx sinensis;Red abdominal shell disease;Aeromonas hydrophila;Virulence genes 51-1213/S Five pathogens from the Trionyx |
| ISSN: | 1001-4829 |