Time to prime: using silicon to activate grass resistance under higher CO2

准备时间：使用硅在较高二氧化碳浓度下激活草的抵抗力

• 批准号: FT170100342
• 负责人: Prof Scott Johnson
• 金额: $ 63.25万
• 依托单位: Western Sydney University
• 依托单位国家: 澳大利亚
• 项目类别: ARC Future Fellowships
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-08-01 至 2023-03-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/FT170100342
• 关键词: Time; prime; using; silicon; activate

This project aims to deliver insight into how CO2 affects defence trade-offs in Australian grasses and establish if silicon (Si) supplementation with an industrial by-product restores resistance. Grasses contain more Si than nearly any other plant, resulting in multiple beneficial functions, including increasing resistance to disease and herbivory. However, increasing atmospheric CO2 reduces Si uptake in some grasses and frequently compromises plant defensive responses/signalling to herbivore attack. A key outcome will be identifying and maximising silicon-based resistance in vulnerable grasses against the threat of climate change and invasive herbivores. This will provide benefits such as increased productivity of Australian grasslands using a pollution-free, broad-spectrum and environmentally safer pest control approach.

该项目旨在深入了解二氧化碳如何影响澳大利亚牧草的防御权衡，并确定补充硅(Si)和工业副产品是否能恢复抗性。草比几乎任何其他植物含有更多的硅，因此具有多种有益功能，包括提高对疾病和草食的抵抗力。然而，大气中二氧化碳的增加减少了一些草本植物对硅的吸收，并经常损害植物对食草动物攻击的防御反应/信号。一个关键成果将是识别和最大限度地提高脆弱草本植物对气候变化和入侵草食动物的硅基抗性。这将带来好处，例如使用无污染、广谱和环境安全的虫害控制方法提高澳大利亚草原的生产力。