Silicon defences for plant protection

用于植物保护的硅防御

• 批准号: DP170102278
• 负责人: Prof Scott Johnson
• 金额: $ 23.67万
• 依托单位: Western Sydney University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-06-30 至 2020-06-29
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP170102278
• 关键词: Silicon; defences; plant; protection

This project aims to study how silicon uptake in grasses affects plant susceptibility aboveground. Grasses contain more silicon than nearly any other plant, which they acquire entirely from the soil. Silicon increases plant resistance to herbivores, disease and drought, but up to 25 per cent of grass productivity is lost to root herbivores, a situation compounded by water stress. Silicon uptake is poorly understood, but root herbivory and changing rainfall patterns can either impair uptake or induce the plant to take up more silicon. The goal of this project is to optimise silicon-based resistance in grasses and exploit this for plant protection from invasive pests and drought.

本项目旨在研究禾本科植物对硅的吸收如何影响植物地上部分的敏感性。草比几乎任何其他植物都含有更多的硅，它们完全从土壤中获得硅。硅提高了植物对食草动物、疾病和干旱的抵抗力，但多达25%的草生产力被根部食草动物失去，这种情况因水分胁迫而加剧。人们对硅的吸收知之甚少，但根的食草性和降雨模式的变化要么会削弱硅的吸收，要么会诱导植物吸收更多的硅。该项目的目标是优化草类植物的硅基抗性，并利用这一点来保护植物免受入侵害虫和干旱的侵袭。