Nitrogen fixation by photosynthetic bacteria: fundamentals and applications

光合细菌固氮：基础知识和应用

• 批准号: 36584-2009
• 负责人: Hallenbeck, Patrick
• 金额: $ 2.26万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=474700
• 关键词: Nitrogen; fixation; photosynthetic; bacteria; fundamentals

The photosynthetic bacteria are extremely metabolically versatile and serve as excellent model organisms for understanding a variety of basic biological processes including; nitrogen fixation, photosynthesis, and metabolic regulation. We are presently concentrating on deciphering the role of ammonia and energy sensing in the regulation of nitrogenase in Rhodobacter capsulatus. The survival and competiveness of microorganisms depend on their ability to sense and respond to the external milieu. This is particularly evident with compounds that are metabolized to form the basic building blocks of the cell. Nutrient-based regulation has been extensively studied with respect to transcriptional control, yet little is known about the direct sensing of nutrient availability.

光合细菌在代谢上具有极高的用途，并且是理解各种基本生物学过程的出色模型生物，包括：氮固定，光合作用和代谢调节。 我们目前正在专注于解密氨和能量传感在氮糖囊中硝化酶调节中的作用。 微生物的生存和竞争能力取决于它们感知和应对外部环境的能力。 这对于形成细胞的基本构件的化合物尤其明显。 基于营养的调节已经广泛研究了转录控制，但对养分可用性的直接感知知之甚少。