ISHS Acta Horticulturae 398: Postharvest Physiology of Fruits
NUCLEAR MAGNETIC RESONANCE (NMR) INVERSION RECOVERY SPIN ECHO MICROIMAGING OF FUNGUS INFECTIONS IN STRAWBERRY FRUIT |
| Authors: | J.L. Maas, M.J. Line |
| Abstract:
Strawberry fruit infected with Botrytis cinerea, Colletotrichum acutatum, or Phytophthora cactorum were examined by nuclear magnetic resonance inversion recovery spin echo microimaging. Inversion recovery images, T1-weighted images, histograms of the frequencies of the calculated T1 values of the voxels in the T1 images, and proton distribution images were obtained for representative examples of each disease. Infected areas were clearly distinguishable from healthy tissue in the images. In general echo times were shorter and water proton densities were greater in diseased tissue than in health tissue. Infected areas caused by B. cinerea were different from those of C. acutatum and P. cactorum. Often two or three zones were seen in the echo and T1-weighted images of C. acutatum and P. cactorum lesions. | |
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