后幼虫相关的微生物群和潜在的生态过程在AHPND的进展
Zhongjiang Zhou1,2, Jiaqi Lu1,2, Pingping Zhan2
1State Key Laboratory for the Quality and Safety of Agro-Products, School of Marine Sciences, Ningbo University, Ningbo 315211, China.
Microorganisms
|April 26, 2025
概括
急性肝胰腺亡病 (AHPND) 显著改变了的幼虫后肠道微生物群,影响了的健康和生存. 了解这些微生物转变对于管理水产养殖中的AHPND爆发至关重要.
科学领域:
- 水产养殖是水产养殖的一种方式.
- 微生物学 微生物学
- 动物健康 动物健康
背景情况:
- 后幼容易受到急性肝胰腺亡病 (AHPND) 的影响.
- 与晚期生命阶段相比,AHPND对后的微生物群的影响尚不清楚.
- 不同的非生物和生物因素在不同的生命阶段影响AHPND.
研究的目的:
- 在AHPND进展过程中比较分析与后相关的微生物群.
- 研究在AHPND感染期间推动微生物群变化的生态过程.
- 确定微生物生物标志物,以便在后中早期检测AHPND.
主要方法:
- 对16S rRNA基因的细菌V3-V4高变区的测序.
- 通过检测大量*pirAB*基因 (毒素1) 的副本来验证AHPND感染.
- 在健康和感染AHPND的后之间对微生物群落结构和生态过程进行比较分析.
主要成果:
- AHPND显著改变了后幼虫相关的微生物群结构.
- 与感染者相比,细菌和Bdellovibrionia物种的健康幼虫丰富;在晚期观察到肠道微生物群的恢复.
- AHPND感染解释了社区结构中11.0%的变异;的年龄也显著影响了细菌社区 (7.1%的变异).
- 感染AHPND的的同质选择减少,分散限制/漂移增加.
- 确定了13种AHPND歧视性种群,准确地区分了感染的和健康的,准确度为100%.
- AHPND疫情削弱了微生物网络的复杂性和稳定性.
结论:
- AHPND对的幼虫后微生物群组成和生态动态产生了深远的影响.
- 微生物群的改变与的健康,生存和疾病进展有关.
- 特定的微生物种群可以作为在后中检测AHPND的可靠指标.
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