Using high resolution computed tomography to visualize the three dimensional structure and function of plant...

Area of Science:

• Plant Biology
• Biophysics
• Imaging Science

Background:

• Traditional microscopy offers limited 2D views of plant vascular systems.
• High resolution x-ray computed tomography (HRCT) provides sub-micron resolution for non-destructive 3D imaging.
• Synchrotron-based HRCT enhances spatial resolution and reduces acquisition time compared to conventional methods.

Purpose of the Study:

• To detail the application of synchrotron-based HRCT for exploring plant xylem structure and function.
• To demonstrate the versatility of HRCT across various plant species and organs.
• To highlight advancements enabling imaging of both excised and living plant tissues.

Main Methods:

• Utilizing synchrotron-based HRCT at the Advanced Light Source (ALS) for high-resolution imaging.
• Employing Avizo software for data processing and visualization of 3D vascular networks.
• Applying HRCT to a range of plant species including woody trees, herbaceous plants, and ferns.

Main Results:

• HRCT successfully visualizes intricate plant xylem anatomy in three dimensions.
• The technique is applicable to diverse plant organs such as leaves, stems, and roots.
• Recent improvements allow for imaging of hydrated green tissues and even living plants, with methods to mitigate shrinkage artifacts.

Conclusions:

• Synchrotron-based HRCT is a powerful, non-destructive tool for plant vascular research.
• This advanced imaging technique offers unprecedented insights into plant xylem structure and function.
• HRCT facilitates virtual serial sectioning, overcoming limitations of traditional microscopy.