Journal of General Plant Pathology (2004) 70, 1-6

Akira Kawakami, Naoyuki Matsumoto and Shigeo Naito (2004)
Environmental factors influencing sporocarp formation in Typhula ishikariensis
Journal of General Plant Pathology 70 (1), 1-6
Abstract: Environmental factors influencing sporocarp formation in Typhula ishikariensis were studied under controlled conditions. Sporocarp formation in T. ishikariensis was divided into two stages: stipe elongation from the sclerotium and fertile head development at the tip of the stipe. Factors required for each stage differed. At the stipe elongation stage, low temperature (10°/5°C; day/night) and high humidity were important, but light was not required. In contrast, at the fertile head stage, light and moderate day length (8 h/day) were essential. Fertile heads developed at 46 µEm^-2 s^-1; and high intensity (137 µEm^-2 s^-1) did not suppress development. Moreover, adding unsterilized soil to the sea sand medium accelerated sporocarp formation. These findings imply that the sclerotium of T. ishikariensis recognizes several physical factors for sporocarp formation. Sporocarps of T. ishikariensis developed within 4 weeks after incubation under optimal conditions. The sporocarp produced basidiospores, and differential mating incompatibility was confirmed among monokaryons derived from basidiospores produced under artificial conditions. This method should be useful for obtaining monokaryons for genetic studies of T. ishikariensis.
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Link to article at publishers website
Database assignments for author(s): Akira Kawakami, Shigeo Naito

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Typhula ishikariensis