Molecular and physiological studies of nitrogen uptake in plants and fungi

植物和真菌氮吸收的分子和生理学研究

• 批准号: 570-2007
• 负责人: Glass, Anthony
• 金额: $ 5.68万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=388299
• 关键词: Molecular; physiological; studies; nitrogen; uptake

During the last fifty years, global nitrogen fertilizer use has climbed to approximately 100 billion kg per annum at a cost of about 50 billion dollars. Much of this fertilizer is leached from the land and swept into rivers and oceans, where it causes considerable environmental damage to natural populations through blooms of microrganisms. Their rapid growth reduces oxygen levels in coastal waters e.g. in the Gulf of Mexico, where this periodically results in large fish kills. The increasing population growth and degradation of agricultural lands worldwide can only exacerbate this problem in the coming years.

在过去的50年中，全球氮肥的使用量已经攀升至每年约1000亿kg，成本约为500亿美元。这些肥料中的大部分从土地上沥滤出来，被冲入河流和海洋，通过微生物的大量繁殖对自然种群造成相当大的环境破坏。它们的快速生长降低了沿海沃茨的氧气水平，例如在墨西哥湾，这定期导致大鱼死亡。在未来几年中，世界各地人口的不断增长和农业土地的退化只会加剧这一问题。