Search

Your search keyword '"Bu, Xialian"' showing total 12 results
Start Over Author "Bu, Xialian"
12 results on '"Bu, Xialian"'

5. Effect of ectoparasite Ichthyophthirius multifiliis on the histopathology and gill and gut microbiota of goldfish (Carassius auratus).

Author

Bu, Xialian, Peng, Xianqi, Huang, Lei, Zhao, Yu, Jiao, Jinbiao, Zhu, Jian, Chen, Jing, Huang, Xiaohong, Zheng, Aqin, Qu, Huantao, and Yao, Jiayun

Subjects
ICHTHYOPHTHIRIUS multifiliis, GOLDFISH, HISTOPATHOLOGY, ECTOPARASITES, GILLS, STOMACH, HUMAN microbiota
Abstract

Introduction: The ectoparasite Ichthyophthirius multifiliis , is the pathogen of white spot disease in freshwater fish, which parasitizes on gills, fins, and skins of fish, causing tissue damage and death of host. However, whether it influences gill and gut microbiota is still unknow. Methods: In this study, H&E staining was used to show the gill and gut histopathological characteristics of I. multifiliis -infected and uninfected goldfish (Carassius auratus). Meanwhile, 16S rRNA gene amplicon sequencing was conducted to analyze the difference of gill and gut microbiota between I. multifiliis -infected and uninfected goldfish. Results: Histopathological examination revealed that I. multifiliis has induced significant damage to the gills of goldfish, characterized by lamellae fusion, cell hyperplasia, cell hyperaemia, inflammatory infiltration, necrosis and desquamation. 16S rRNA gene sequencing result showed that alpha and beta diversity of gill microbiota was significantly reduced in the I. multifiliis -infected group, while no significant changes were observed in gut microbiota. Genus Candidatus Megaira exhibited the highest relative abundance in the I. multifiliis -infected group. Meanwhile, the abundance of opportunistic pathogens Aeromonas and Achromobacter were increased in the intestines of I. multifiliis -infected goldfish. Discussion: The increased presence of Candidatus Megaira may originate from within the cells of I. multifiliis. The increase of opportunistic pathogens Aeromonas and Achromobacter may pose a threat to the health of goldfish. In summary, this study laid a foundation for further research on the interaction between I. multifiliis and host microbiota. [ABSTRACT FROM AUTHOR]

Published
2025
Full Text
View/download PDF

7. Alterations of gut microbiota and short-chain fatty acids induced by Balantidium polyvacuolum in the hindgut of Xenocyprinae fishes providing new insights into the relationship among protozoa, gut microbiota and host

Author

Bu, Xialian, primary, Li, Zhongyang, additional, Zhao, Weishan, additional, Zeng, Qingwen, additional, Chen, Yushun, additional, Li, Wenxiang, additional, Zou, Hong, additional, Li, Ming, additional, and Wang, Guitang, additional

Published
2023
Full Text
View/download PDF

11. The inhibitory effects of disinfectants against Aeromonas salmonicida at low temperatures

Author

Huang, Xiaoli, Liu, Sha, Chen, Fukai, Bu, Xialian, Fan, Wei, Xiong, Guanqing, Zhong, Liang, Feng, Yang, Wang, Kaiyu, Geng, Yi, Ouyang, Ping, Chen, Defang, Li, Liangyu, Yang, Shiyong, Huang, Xiaoli, Liu, Sha, Chen, Fukai, Bu, Xialian, Fan, Wei, Xiong, Guanqing, Zhong, Liang, Feng, Yang, Wang, Kaiyu, Geng, Yi, Ouyang, Ping, Chen, Defang, Li, Liangyu, and Yang, Shiyong

Abstract

Aeromonas salmonicida is a fish pathogen that has resulted in significant losses to the aquaculture industry worldwide. In the winter of 2018/2019, a serious outbreak of A. salmonicida infection of grass carp (Ctenopharyngodon idella) occurred in China. Since C. idella do not feed at low water temperatures, antibiotics cannot be delivered orally, thus the use of disinfectants is the only viable option to control the disease in the winter months. Therefore, the aim of this study was to elucidate the inhibitory effects of different disinfectants against A. salmonicida at various temperatures and pH values. The microdilution method was used to determine the minimum inhibitory concentration (MIC) of five disinfectants against A. salmonicida at different temperatures. The results showed that A. salmonicida was highly adaptable to temperatures ranging from 8 to 35 °C and pH values from 5 to 9. Moreover, based on the results, benzalkonium bromide (BB) had the strongest inhibitory effect at every temperature. Since A. salmonicida has strong environment adaptability, BB should be chosen to control the disease at low temperatures.

Published
2021

Catalog

Books, media, physical & digital resources
See catalog results