细菌领域的结构色彩:一个二维光学现象型的生态学
Aldert Zomer1, Colin J Ingham2, F A Bastiaan von Meijenfeldt3,4
1Division of Infectious Diseases and Immunology, Utrecht University, Utrecht 3584 CL, the Netherlands.
概括
细菌中的结构色因细胞包装而产生的,涉及尿波氨酸和氨酸生物合成. 这项研究揭示了细菌结构色 (SC) 在各种环境中的遗传基础和广泛分布.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 光学是什么?光学是什么?光学是什么?
背景情况:
- 结构色 (SC) 是大自然中普遍存在的现象,但其在细菌中的遗传和基因组基础尚不清楚.
- SC产生的结果是光与纳米结构材料的相互作用,通常在生物系统中观察到.
研究的目的:
- 识别与细菌结构颜色相关的基因和途径.
- 探索细菌群体中结构色彩的分布和进化关系.
- 根据基因组数据开发一种细菌结构颜色的预测模型.
主要方法:
- 测序了87种结构上有色的细菌分离物和30种无色菌株.
- 全基因组广泛的关联研究,以确定与SC相关的基因.
- 从基因组序列中预测SC的分类器的开发和验证.
- 分析了超过13,000个组装的元基因组,以评估SC分布.
主要成果:
- 来自Bacteroidetes和Proteobacteria族的各种细菌可以通过二维细胞包装来产生SC.
- 参与泌尿素和蛋白生物合成,碳水化合物利用和新陈代谢的基因与SC有关.
- 开发的分类器准确地预测了以前未被表征的菌株中的SC,这表明它在グラム阴性细菌中的广泛分布.
- 在海洋水和空气-水界面上,SC是丰富的,但在多细胞生物的息地很少见,除了大藻类.
结论:
- 这项研究为细菌结构色彩提供了大规模的生态基因学视角.
- 确定了细菌中SC的潜在微生物途径和进化关系.
- 细菌中的结构色彩比以前认为的更为普遍,特别是在水中和空中环境中.
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