Re-balancing global resources: Manipulating toxic prussic acid (dhurrin) to improve nitrogen use efficiency in forage sorghum in a changing climate

重新平衡全球资源：在气候变化的情况下控制有毒氢氰酸（dhurrin）以提高饲用高粱的氮利用效率

• 批准号: LP100100434
• 负责人: Prof Ros Gleadow
• 金额: $ 18.81万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2010
• 资助国家: 澳大利亚
• 起止时间: 2010-08-27 至 2013-08-27
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP100100434
• 关键词: Re; balancing; global; resources; Manipulating

Sorghum is grown widely is Australia and world-wide for forage, grain (mostly for animal feed) and biofuels. It grows well in dry areas. The problem is that the leaves contain a toxin that releases prussic acid (cyanide) that can reduce animal production or even kill stock feeding on it, especially when water stressed. The problem will get worse with climate change. Low-cyanide plants developed by us using non-GM methods grow fast, but accumulate nitrate instead which is also toxic. This is a waste of expensive fertiliser too. We aim to develop plants that divert resources to growth instead of toxins in order to reduce fertiliser use and help prepare for the future. The fast growing plants may also be useful as a biofuel crop.

高粱在澳大利亚和世界各地广泛种植，用作饲料、谷物（主要用于动物饲料）和生物燃料。它在干旱地区生长良好。问题在于，叶子含有一种毒素，会释放氢氰酸（氰化物），从而降低动物产量，甚至杀死以其为食的牲畜，尤其是在缺水的情况下。随着气候变化，这个问题将会变得更加严重。我们采用非转基因方法开发的低氰植物生长速度快，但会积累硝酸盐，硝酸盐也是有毒的。这也是对昂贵肥料的浪费。 我们的目标是开发能够将资源转移到生长而不是毒素的植物，以减少化肥的使用并帮助为未来做好准备。快速生长的植物也可用作生物燃料作物。