Oxygenating the Earth: using innovative techniques to resolve the timing of the origin of oxygen-producing photosynthesis in cyanobacteria

给地球供氧：利用创新技术解决蓝藻产氧光合作用起源的时间问题

• 批准号: DP1093106
• 负责人: Prof Malcolm Walter
• 金额: $ 51.13万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2010
• 资助国家: 澳大利亚
• 起止时间: 2010-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP1093106
• 关键词: Oxygenating; Earth; using; innovative; techniques

The early Earth was a hostile place with little oxygen in the atmosphere. Then cyanobacteria ('blue-green algae') invented oxygen-releasing photosynthesis. That profound event affected many fundamental processes, from the course of evolution to the formation of ore deposits. However, estimates of when these bacteria originated are disputed with uncertainties of hundreds of millions of years. We will resolve those uncertainties. We have developed new analytical techniques that we will apply to well-preserved 2.7-2.8 billion-year-old rocks in Western Australia. We will couple that approach to the use of the latest genetic techniques to reveal the origins of living cyanobacteria.

早期的地球是一个充满敌意的地方，大气中几乎没有氧气。然后蓝藻（“蓝绿藻”）发明了释放氧气的光合作用。这一重大事件影响了从演化过程到矿床形成的许多基本过程。然而，对这些细菌起源时间的估计存在争议，存在数亿年的不确定性。我们将解决这些不确定性。我们已经开发了新的分析技术，我们将应用于西澳大利亚保存完好的27 - 28亿年前的岩石。我们将夫妇的做法，以使用最新的遗传技术，以揭示活蓝藻的起源。