Molecular, physiological and environmental regulation of toxic prussic acid levels (cyanogenesis) in forage sorghum.

饲料高粱中有毒氢氰酸水平（氰化）的分子、生理和环境调节。

• 批准号: LP0774941
• 负责人: Prof Ros Gleadow
• 金额: $ 14.58万
• 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: 2007
• 资助国家: 澳大利亚
• 起止时间: 2007-06-20 至 2010-10-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0774941
• 关键词: Molecular; physiological; environmental; regulation; toxic

Forage sorghum is grown widely in dry, tropical areas of Australia. The leaves contain dhurrin, a natural defence product that liberates prussic acid (cyanide) when leaf tissue is disrupted (eg when chewed). The problem is that young plants or those experiencing drought are highly toxic, resulting in financial loss through reduced nutritive value, livestock loss and wasted feed. Using new, non-GM technology we will identify novel genetically altered sorghum lines with negligible prussic acid. Lines with enhanced levels could be used as soil biofumigants. Breeders can use this germplasm to develop varieties tailored for increasingly dry Australian conditions. The new varieties with controlled dhurrin content will be suitable for export.

饲料高粱广泛种植在澳大利亚干燥的热带地区。叶子中含有一种天然的防御产物，当叶子组织被破坏时（例如咀嚼时）会释放出氢氰酸（氰化物）。问题是，幼小的植物或经历干旱的植物毒性很强，营养价值降低，牲畜损失和饲料浪费，造成经济损失。利用新的非转基因技术，我们将确定新的转基因高粱品系，其氢氰酸可以忽略不计。具有增强水平的品系可用作土壤生物熏蒸剂。育种者可以利用这种种质来开发适合日益干燥的澳大利亚条件的品种。新品种的含量控制将适合出口。