低温对肠道微生物群的影响 银色 (Pampus argenteus) 的组成
Man Zhang1, Wenhao Nie1, Mengke Tang1
1Key Laboratory of Applied Marine Biotechnology, Ningbo University, Ministry of Education, Ningbo, China; Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, China; College of Marine Sciences, Ningbo University, Ningbo, China.
概括
银色的养和肠道结构随着水温降低而下降. 低温改变肠道微生物群,激活适应代谢途径,支持冷水水产养殖.
科学领域:
- 水产养殖是水产养殖的一种方式.
- 鱼类生理学 鱼类生理学
- 微生物学 微生物学
背景情况:
- 银 (Pampus argenteus) 是中国经济上重要的鱼类.
- 人工繁殖的进步使得水产养殖在新地区成为可能.
- 北方水产养殖需要适应较低的冬季温度.
研究的目的:
- 为了研究银的生理和微生物对模拟冬季冷却的反应.
- 了解银的低温适应机制.
- 为了支持寒冷气候地区的银水产养殖.
主要方法:
- 在循环水产养殖系统中模拟从18°C逐渐冷却到6°C.
- 肠道组织的组织学分析.
- 16S rRNA基因测序用于微生物社区分析.
- 生态社区组装模型.
主要成果:
- 随着水温的下降,养活动显著下降.
- 肠道结构出现变化:原减少,细胞间空间扩大,折叠高度降低.
- 微生物多样性最初下降,然后恢复;社区组成从Vibrio转移到Pseudoalteromonas,Pseudomonas和Shewanella在压力下.
- 在低温下,与代谢相关的途径被激活.
结论:
- 在低温下,银色鱼表现出减少的食和肠道变化.
- 微生物群落的转移和通路的激活是低温适应的关键.
- 这些发现支持在降低温度下进行银水产养殖的可行性.
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