Evaluation of pathogenicity of Acinetobacter venetum by using Caenorhabditis elegans
10.19485/j.cnki.issn2096-5087.2019.11.002
- VernacularTitle:秀丽隐杆线虫模型评估威尼斯不动杆菌的致病性
- Author:
Yu LI
1
;
Xueyan WANG
;
Xiaoke HU
;
Mengdi YANG
;
Huan LUO
;
Jing LIANG
;
Longfei LI
;
Jinping ZHAO
;
Jie BI
;
Bin CHEN
;
Rugang WANG
Author Information
1. Occupational Health Examination Center，Beijing Center for Disease Control and Prevention
- Publication Type:Journal Article
- Keywords:
Acinetobacter venetum，Caenorhabditis elegans，Pathogenicity
- From:
Journal of Preventive Medicine
2019;31(11):1086-1090
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the pathogenicity of Acinetobacter venetum（Av），which is expected to be used as an environmental remediation agent，using Caenorhabditis elegans（C.elegans）.
Methods:The C.elegans were cultured on the media loaded with E.coli OP50 and Av，respectively. The pathogenicity of Av was evaluated by observing the effects of Av on the growth，movement，digestive function，lifespan and reproduction of C.elegans，compared with that of another evaluation system according to NY 1109-2017 General Biosafety Standard for Microbial Fertilizers.
Results:By C. elegans system，it was found that the body length，width，head thrash frequency，body bending frequency and average lifespan [（13.5±0.4）d vs.（13.7±0.4）d] of adult nematodes in the Av group were not significantly different from those in the OP50 group（all P>0.05）；while the average time of defecation cycle in the Av group shortened，the total number of progenies in the Av group increased by 18.7%（all P<0.05）. According to NY1109-2017 General Biosafety Standard for Microbial Fertilizers，it was found that the oral LD50 values for both male and female mice were more than 10 g/kgbw，which was practically non-toxic；the pathogenicity test of acute intraperitoneal injection showed that the animals did not have signs of poisoning，deaths or any abnormalities in gross anatomy；Av had no irritation to damaged skin and eyes of rabbits；the hemolysis test was negative；Av was sensitive to seven antibiotics and was medium to one antibiotic.
Conclusion:Av is not pathogenic. C. elegans can be used in early screening for the pathogenicity of environmental remediation agents.
- Full text:秀丽隐杆线虫模型评估威尼斯不动杆菌的致病性.pdf
