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Magnetic Resonance Imaging (MRI) non-destructively analyzes potato tuber defects and tissue changes during storage. MRI reveals internal flesh heterogeneity and storage evolution, demonstrating its value for plant tissue characterization.

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Area of Science:

  • Plant Science
  • Biophysics
  • Imaging Technology

Background:

  • Magnetic Resonance Imaging (MRI) is crucial for non-destructive plant tissue analysis.
  • Potato tuber storage involves internal tissue evolution and defect development.

Purpose of the Study:

  • To analyze potato tubers using MRI to detect internal defects and track tissue evolution during storage.
  • To characterize potato flesh heterogeneity using advanced MRI techniques.

Main Methods:

  • Spatialized multi-exponential T2 relaxometry was employed to create bi-exponential T2 maps.
  • A classification scheme identified distinct T2 homogeneous zones within tubers.
  • Analysis was conducted across eight sampling dates from 14 to 33 weeks post-harvest.

Main Results:

  • Six statistically distinct relaxation parameter classes were identified, enabling detection of defects, pith, and cortex tissues.
  • MRI successfully differentiated three constitutive elements within the potato flesh, highlighting its heterogeneity.
  • Relaxation parameters and their storage-related evolution were analyzed for each identified class.

Conclusions:

  • MRI provides detailed, non-invasive characterization of plant tissues, specifically potato tubers.
  • The study validates MRI's utility in assessing internal tuber quality and storage-induced changes.
  • T2 relaxometry and classification schemes effectively reveal potato tuber internal structure and dynamics.