Recently, two research teams from the Hefei Institute of Material Science of the Chinese Academy of Sciences and the Strong Magnetic Field Science Center of the Chinese Academy of Sciences have worked together to make progress in the research of rice plant root magnetic resonance imaging. This research is the world's first application of contrast-enhanced magnetic resonance imaging technology in the nondestructive detection of rice roots, providing a new research method for plant root research.
Roots play an important role in plant growth and development, but due to the growth of roots in the soil, there is still a lack of rapid, accurate and non-destructive in situ observation methods that affect people's in-depth research on plant roots. The traditional root research method has large sampling destructiveness, large workload and low accuracy. Magnetic resonance imaging, as an imaging technique widely used in medicine, has the advantages of non-destructive detection and high resolution, which provides a good idea for scientists to study the imaging of plant roots during the whole growth period.
The study found that magnetic resonance imaging of rice roots faces technical problems and challenges such as low magnetic resonance imaging signal intensity. The research team selected the widely used magnetic resonance contrast agent Gd-DTPA to improve the imaging quality of root magnetic resonance imaging, and studied its applicability in root imaging using a strong magnetic field imaging device. Gd acts as a "Hormesis effect" for the growth of plants with rare earth elements. The researchers used the relevant physiological, biochemical and quantitative analysis techniques to study the potential effects of the contrast agent Gd-DTPA on rice growth, and obtained the dynamic information of the contrast agent in the root system by magnetic resonance imaging.
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