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, 35 (2), 87-90

Identification and Distribution of Two Fungal Species Causing Sclerotial Disease on Mulberry Fruits in Korea


Identification and Distribution of Two Fungal Species Causing Sclerotial Disease on Mulberry Fruits in Korea

Sung Kee Hong et al. Mycobiology.


A total of 520 overwintered sclerotia were collected from surface of soil under mulberry trees in six locations in Korea during February in 2006 and 2007. The collected sclerotia were tested for their germination in vitro and identified based on their morphological characteristics. Out of all sclerotia tested, 52.3% of the sclerotia germinated and produced two types of apothecia. The two types of fungi occurred from the sclerotia at the ratio of 49.8 vs. 50.2. The fungal type with cup-shaped apothecia was identified as Ciboria shiraiana and another type of fungus with club-shaped apothecia as Scleromitrula shiraiana. Taxonomy and distribution of the two sclerotial fungi were described and discussed.

Keywords: Ciboria shiraiana; Fruit; Mulberry tree; Scleromitrula shiraiana.


Fig. 1
Fig. 1
Morphological features of Ciboria shiraiana. A and B, cup-shaped apotheica induced from overwintered sclerotia in vitro; C~E; asci, ascospores and paraphyses.
Fig. 2
Fig. 2
Morphological and cultural features of Scleromitrula shiraiana. A and B, club-shaped apothecia induced from overwintered sclerotia; C~E, asci, ascospores and paraphyses; F, colony on PDA; G, pustules containing milk colored microconidial mass on stromata; H, microconidia.

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