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坎迪达图斯 (Candidatus accumulibacter) 的光代谢行为

V C F Carvalho¹, A Z M Gan², A Shon²

¹Associate Laboratory i4HB - Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal.

|June 8, 2024

概括

菌候群 (Candidatus Accumulibacter) 是增强生物去除 (EBPR) 的关键生物体,可以利用光营养代谢来获得能量和吸收. 这种适应能力为 phototrophic-EBPR 技术的发展提供了潜力.

科学领域:

微生物学微生物学
环境科学环境科学
生物技术是生物技术.

背景情况:

菌候群 (Candidatus Accumulibacter) 是一种在增强生物去除 (EBPR) 系统中普遍存在的聚酸盐积聚生物 (PAO).
虽然与光合作用紫色细菌相关,但Accumulibacter的光合作用潜力仍未得到充分探索.

研究的目的:

为了研究Candidatus Accumulibacter的摄影能力.
评估Accumulibacter对光线条件的反应及其代谢适应.

主要方法:

在高度丰富的Accumulibacter培养物 (95%) 上进行了短和延长光周期测试.
进行了质量,能量和氧化还原平衡分析.
使用丰富的Tetrasphaera文化作为控制.

主要成果:

在光适应后,Accumulibacter使用聚基酸盐和甘油素证明了完全的吸收.
光代谢对于满足能源需求至关重要,为吸收和生长提供超过67%的ATP.
在长时间的光/黑暗周期下,微藻存在,Accumulibacter转向了传统的新陈代谢.

结论:

阿库穆利巴克特具有适应性代谢灵活性,在缺乏氧气的条件下能够产生摄影性能量.
这一发现支持光otrophic-EBPR技术的发展.
缺乏光合作用基因的四旋翼种植物没有表现出光合作用吸收.

关键词:

候选菌结杆菌 (Accumulibacter) 是一种结杆菌.增强的生物去除 (EBPR)摄影性生长的增长摄影性生长聚酸盐积聚生物 (PAO) 的存在.

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