Japanese Journal of Phytopathology
Online ISSN : 1882-0484
Print ISSN : 0031-9473
ISSN-L : 0031-9473
Role of Brown-Discolored Tissues around Blast Lesions in the Defence Reaction of Rice Plants against Pyricularia oryzae Cav.
Yoshio KUROSAKI
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1978 Volume 44 Issue 5 Pages 670-673

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Abstract

To investigate the water permeability of the brown-discolored marginal zone, artificial lesions were prepared by means of inoculation at heat-injured spots. These lesions formed sharp brown-discolored zone which seemed to barricade the parasite. Water content of these lesions decreased rapidly even under sufficient water supply, suggesting that the brown-discolored tissue inhibits the supply of water and water soluble nutrients to the fungus enclosed in the lesion.

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© The Phytopathological Society of Japan
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