Japanese Journal of Phytopathology
Online ISSN : 1882-0484
Print ISSN : 0031-9473
ISSN-L : 0031-9473
Suppression of Haustorium Formation of Peronospora parasitica in Japanese Radish Root Tissues Pretreated with Inhibitors of Calcium Ion Dependent Metabolism
Katsuyuki YOSHIDATomizo OHGUCHI
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1994 Volume 60 Issue 2 Pages 253-256

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Abstract

Effects of inhibitors of calcium-dependent metabolism on haustorium formation of Peronospora parasitica in Japanese radish root tissues were investigated. When the root tissues were pretreated with chlortetracycline, EGTA and Na3VO4, respectively, haustorium formation of the fungus was suppressed. The suppression by chlortetracycline was restored by addition of a calcium ionophore or a protein kinase activator. These results suggested that haustorium formation of P. parasitica might be closely related to calcium-dependent metabolic process in host.

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