甲生产与Trichodesmium的生理特征的相关性 IMS 101在不同的温度下与甲基酸盐一起种植
Chuze Zou1, Xiangqi Yi2, He Li3
1State Key Laboratory of Marine Environmental Science, College of the Ocean and Earth Sciences, Xiamen University, Xiamen, China.
Frontiers in microbiology
|June 19, 2024
概括
菌Trichodesmium的甲产量随着温度升高至27°C而增加,与营养同化相关. 这种微生物的甲释放可能会抵消Trichodesmium二氧化碳减轻影响的很小一部分.
科学领域:
- 海洋微生物学 海洋微生物学
- 生物地质化学循环 生物地质化学循环
背景情况:
- 菌 *Trichodesmium* 是已知的有氧甲生产的贡献者.
- 甲基酸盐 (MPn) 被三二氧化 (Trichodesmium) 用作源,可能会影响甲的产生.
- 调节*Trichodesmium*生产甲的环境因素尚未得到充分了解.
研究的目的:
- 为了研究温度对*Trichodesmium*的甲产生的影响.
- 为了确定甲生产和营养同化率之间的关系,在*Trichodesmium*.
主要方法:
- 在五种不同的温度 (16°C至31°C) 中培养*Trichodesmium* IMS101.
- 在每个温度下测量甲生产率和特定增长率.
- 分析甲生产和碳,和的同化率之间的相关性.
主要成果:
- 甲生产率随着温度的增加而增加,达到27°C (1.028 ± 0.040 nmol CH4 μmol POC-1天-1),然后下降.
- 氏体的最佳生长温度在27°C和31°C之间.
- 甲生产对温度的敏感性很高 (Q10 = 4.6 ± 0.7) 并与碳,和同化具有积极的相关性.
结论:
- 温度显著影响*Trichodesmium*中的甲产量,在27°C观察到的最佳速率.
- 甲生产与关键营养素 (C,N,P) 的同化有关.
- 由*Trichodesmium*释放的甲可能会抵消大约1%的二氧化碳减排效益.
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