Frontiers in Microbiology (Sep 2021)
Putative Riemerella anatipestifer Outer Membrane Protein H Affects Virulence
- Qun Gao,
- Shuwei Lu,
- Shuwei Lu,
- Mingshu Wang,
- Mingshu Wang,
- Mingshu Wang,
- Renyong Jia,
- Renyong Jia,
- Renyong Jia,
- Shun Chen,
- Shun Chen,
- Shun Chen,
- Dekang Zhu,
- Dekang Zhu,
- Dekang Zhu,
- Mafeng Liu,
- Mafeng Liu,
- Mafeng Liu,
- Xinxin Zhao,
- Xinxin Zhao,
- Xinxin Zhao,
- Qiao Yang,
- Qiao Yang,
- Qiao Yang,
- Ying Wu,
- Ying Wu,
- Ying Wu,
- Shaqiu Zhang,
- Shaqiu Zhang,
- Shaqiu Zhang,
- Juan Huang,
- Juan Huang,
- Juan Huang,
- Sai Mao,
- Sai Mao,
- Sai Mao,
- Xumin Ou,
- Xumin Ou,
- Xumin Ou,
- Di Sun,
- Di Sun,
- Di Sun,
- Bin Tian,
- Bin Tian,
- Bin Tian,
- Anchun Cheng,
- Anchun Cheng,
- Anchun Cheng
Affiliations
- Qun Gao
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Shuwei Lu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Shuwei Lu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Mingshu Wang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Mingshu Wang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Mingshu Wang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Renyong Jia
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Renyong Jia
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Renyong Jia
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Shun Chen
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Shun Chen
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Shun Chen
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Dekang Zhu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Dekang Zhu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Dekang Zhu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Mafeng Liu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Mafeng Liu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Mafeng Liu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Xinxin Zhao
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Xinxin Zhao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Xinxin Zhao
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Qiao Yang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Qiao Yang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Qiao Yang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Ying Wu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Ying Wu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Ying Wu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Shaqiu Zhang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Shaqiu Zhang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Shaqiu Zhang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Juan Huang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Juan Huang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Juan Huang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Sai Mao
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Sai Mao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Sai Mao
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Xumin Ou
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Xumin Ou
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Xumin Ou
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Di Sun
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Di Sun
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Di Sun
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Bin Tian
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Bin Tian
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Bin Tian
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- Anchun Cheng
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Anchun Cheng
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Anchun Cheng
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
- DOI
- https://doi.org/10.3389/fmicb.2021.708225
- Journal volume & issue
-
Vol. 12
Abstract
Riemerella anatipestifer causes serious contagious disease in ducks, geese, and other fowl. However, as a harmful pathogen causing significant economic losses in the poultry industry, R. anatipestifer is still poorly understood for its pathogenesis mechanisms. In a previous study, we developed an indirect ELISA method for detecting R. anatipestifer infection using B739_0832 protein, a putative outer membrane protein H (OmpH) that is conserved among different serotypes of R. anatipestifer. Although OmpH in some pathogenic bacteria, such as Pasteurella, has been reported as a virulence factor, it is still not clear whether B739_0832 protein contributes to the virulence of R. anatipestifer. In this study, we confirmed that B739_0832 protein in R. anatipestifer localizes to the outer membrane. We constructed a B739_0832 deletion mutant strain (ΔB739_0832) and assayed various effects from the deletion of B739_0832. ΔB739_0832 strain had a similar growth rate to wild-type R. anatipestifer CH-1. However, the survival rate of ducklings in 10 days after infection from ΔB739_0832 strain was 50%, whereas no ducklings survived from wild-type R. anatipestifer infection. Furthermore, the median lethal dose (LD50) of the ΔB739_0832 strain was approximately 150 times higher than that of the wild-type strain. Pathology examinations on infected ducklings found that, at 36 h after infection, bacterial loads in blood, liver, and brain tissues from ΔB739_0832-infected ducklings were considerably lower than those from wild-type infected ducklings. These results demonstrate that the B739_0832 protein contributes to the virulence of R. anatipestifer CH-1.
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