基于磁共振成像技术的植物根肿病早期无损检测方法研究

Early detection of plant disease and insect pest information has always been a hot topic and focus of agricultural information disciplines, but the research on early detection of plant root disease is relatively deficient. In this project, the cruciferous plants are selected as the research object. Centering on the physiological responses of plant roots under germs’ stress (threat), quantitative analysis of plant root three-dimensional geometric configuration and early diagnosis of typical plant root disease clubroot are carried out by using magnetic resonance imaging technique. By analyzing the key factors that influence the imaging effect of magnetic resonance tomography in susceptible plant roots, the accurate measurement method of three-dimensional geometric configuration of plant roots and the quantitative detection method of plant clubroot were studied. The results will clarify the mechanism of how pathogens infect the root tissue structure and functional status, and reveal the regularity between the magnetic resonance tomography of plant roots and the physiological characteristics of infected parts of the roots. The development of quantitative diagnostic model for plant clubroot based on magnetic resonance imaging will provide new methods for early, in situ and nondestructive testing of plant root diseases, which is of great significance to the dynamic monitoring of plant stress, the timely and effective plant protection and standardization of agricultural production management as well as the guarantee of production and quality safety of agricultural products.

植物病虫害信息早期快速检测一直是农业信息及自动化学科的研究热点与重点，而有关植物根部病害早期原位无损检测方面的研究相对较为薄弱。本项目拟以十字花科植物为研究对象，围绕病菌胁迫下植物根系生长生理响应特性，采用磁共振成像技术，开展植物根系三维构型的可视化分析和典型植物根部病害-根肿病原位无损检测研究。通过分析影响感病植物根系的磁共振断层序列成像效果的关键因素，研究植物根系的三维几何构型的准确重建及根肿病检测方法。所获结果将进一步验证根肿病菌侵染根系组织结构和功能状态的致病机理，揭示植物根部磁共振断层成像与根系感病部位生理特征之间的规律，开发基于磁共振成像技术的植物根肿病检测模型，为植物根部病害的早期、原位、无损检测提供新思路，对植物逆境的动态监测、及时有效的植保防治和精准化农业生产管理，保障农产品产量和品质安全具有重要意义。

植物病虫害信息早期快速检测一直是农业信息及自动化学科的研究热点与重点，而有关植物根部病害早期原位无损检测方面的研究相对较为薄弱。本项目拟以十字花科植物为研究对象，围绕病菌胁迫下植物根系生长生理响应特性，采用磁共振成像技术，开展植物根系三维构型的可视化分析和典型植物根部病害-根肿病原位无损检测研究。通过分析影响感病植物根系的磁共振断层序列成像效果的关键因素，研究植物根系的三维几何构型的准确重建及根肿病检测方法。所获结果将进一步验证根肿病菌侵染根系组织结构和功能状态的致病机理，揭示植物根部磁共振断层成像与根系感病部位生理特征之间的规律，开发基于磁共振成像技术的植物根肿病检测模型，为植物根部病害的早期、原位、无损检测提供新思路，对植物逆境的动态监测、及时有效的植保防治和精准化农业生产管理，保障农产品产量和品质安全具有重要意义。