透式种植系统中的生物涂层:对微藻单种植的生长和有机物质产量的前所未有的影响
C Y Tong1, Chai Ying Kee2, Kohsuke Honda3
1School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia; International Center for Biotechnology, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
Environmental research
|October 17, 2023
概括
生物涂层在附着种植系统中显著增强微藻生长. 细菌衍生涂层促进了140%的生长,并影响了藻类有机物 (AOM) 的释放,揭示了在没有直接细胞接触的情况下的共生相互作用.
科学领域:
- 生物技术是生物技术.
- 微藻养殖 微藻养殖
- 生物材料是一种生物材料.
背景情况:
- 生物涂层是一种用于附着微藻种植的新方法,可以增强浸水系统的生长.
- 生物涂料对藻类生长和藻类有机物 (AOM) 在微孔基板上的释放的影响尚不清楚.
研究的目的:
- 研究生物涂料对微藻单种植生长和AOM释放的影响.
- 探索生物涂料在使用聚乙烯化物膜的透式栽培系统中的作用.
主要方法:
- 在水友性聚乙烯化物膜上种植Chlorella vulgaris (淡水) 和Cylindrotheca fusiformis (海洋).
- 应用各种生物涂料来源,包括细菌衍生涂料.
- 对藻类生长率和AOM生产力的分析,包括细胞外分离物.
- 在细菌细胞内排泄物中量化蛋白与多糖的比率.
主要成果:
- 与对照物种相比,细菌衍生的生物涂层显著促进了两种物种的藻类生长 (高达140%).
- 观察到明显的适应机制;C. fusiformis显示了生长和AOM生产力之间的正相关性,特别是在细胞外结合的分数中.
- 在细菌覆盖膜上,细胞外蛋白与多糖的高比例 (>5.7倍) 表明了共生微藻与细菌的相互作用.
结论:
- 生物涂层在增强微藻生长和影响AOM产量方面是有效的,即使在微藻和细菌之间没有直接的物理接触.
- 这项研究证明了生物涂层在附着种植系统中的实际好处,特别是在透的设置中.
- 这些发现突出了由生物涂层介导的潜在的共生相互作用,影响了藻类生长和有机物质生产.
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