质谱检测和分析固定在振荡器chalybeabea中的
1Fakultät für Biologie, Lehrstuhl für Zellphysiologie, Universität Bielefeld, Postfach 10 01 31, D-33501 Bielefeld, Bundesrepublik Deutschland.
Zeitschrift fur Naturforschung. C, Journal of biosciences
|November 18, 2023
概括
这项研究使用15N2同位素追踪证明了Oscillatoria chalybea中的固定. 固化受到源和机械干扰的联合抑制,突显了其调节和灵敏度.
科学领域:
- 微生物学 微生物学
- 生物化学 生物化学
- 环境科学 环境科学
背景情况:
- 固化对生命至关重要,它将大气中的转化为可用的形式.
- 菌和紫色细菌是全球循环中的关键参与者.
- 了解固化的调节对于农业和环境应用至关重要.
研究的目的:
- 为了证明和表征固化的线状蓝藻细菌 Oscillatoria chalybea.
- 研究环境因素和抑制剂对固化的影响.
- 为验证15N2的质谱作为研究各种微生物中固化的工具.
主要方法:
- 使用稳定的同位素15N2进行质谱测量.
- 在不同的可用性 (不含混合,酸盐,化) 条件下培养 Oscillatoria chalybea
- 评估机械同质化和光照条件 (有或没有水氧化) 对固化的影响.
主要成果:
- 在没有组合种植的Oscillatoria chalybea中证明了大量的吸收,证实了固定能力.
- 观察到化和甲硫酸盐 (关闭效应器) 显著抑制固.
- 发现细丝的机械破坏严重抑制了N2的吸收,水分裂的氧气释放也抑制了固定.
结论:
- 振荡 (Oscillatoria chalybea) 具有受调节的固定系统,对和氧的组合敏感.
- 菌丝的结构完整性对于有效的固是必不可少的.
- 质谱与15N2是一个强大的方法来研究固化在各种 prokaryotes,包括紫色细菌.
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