在Gracilariopsis lemaneiformis种植环境中的尿酸酶生产细菌的多样性和生态功能
Pengbing Pei1,2, Muhammad Aslam1,3, Hui Wang1
1Guangdong Provincial Key Laboratory of Marine Biotechnology, College of Science, Shantou University, Shantou, 515063, China.
Microbial ecology
|January 23, 2024
概括
尿素生成细菌 (UPB) 通过化尿素来增强红色大藻Gracilariopsis lemaneiformis的吸收. 这项研究确定了UPB,并证明了它们对宏藻生长和同化产生积极影响.
科学领域:
- 海洋微生物学 海洋微生物学
- 藻类生物技术 藻类生物技术
- 生物地质化学循环是什么
背景情况:
- 生产尿素的细菌 (UPB) 对于海洋生态系统中循环至关重要.
- 在宏藻种植中UPB的生态作用,特别是对于Gracilariopsis lemaneiformis,仍然未被充分探索.
研究的目的:
- 为了确定与Gracilariopsis lemaneiformis相关的可培养的UPB.
- 研究UPB对G. lemaneiformis尿素吸收和同化的影响.
主要方法:
- 16S rRNA测序用于细菌多样性分析.
- 使用染色体介质和ureC基因检测进行尿素查.
- 通过伯塞洛特反应色度测量量尿酶活性量化.
- 用G. lemaneiformis进行共同培养实验和同位素测定 (δ15N) 来评估吸收.
主要成果:
- 鉴定了34种细菌分离物,其中8种被证实为UPB,表现出不同的尿酶活性.
- 与高尿酶活性UPB菌株 (G13) 共同培养显著增加了尿素消耗和G. lemaneiformis含量.
- 同位素分析证实,在UPB的存在下,G. lemaneiformis从尿素中增强了的吸收,而型细菌显示出协同作用.
结论:
- 可培养的UPB积极影响Gracilariopsis lemaneiformis中的吸收和同化.
- UPB,特别是具有高尿酶活性的UPB,对于优化宏藻培养中的可用性至关重要.
- 环境相关的细菌,包括UPB,在海洋循环和大藻营养中发挥着重要作用.
关键词:
多样性多样性多样性多样性生态功能 生态功能格拉基拉里诺普西斯 (Gracilariopsis lemaneiformis) 是一种植物.在Urease中使用Urease.生产尿素的细菌 (UPB)更多相关视频
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