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KMID : 1160220100380040282
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Mycobiology
2010 Volume.38 No. 4 p.282 ~ p.285
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Heterothallic Type of Mating System for Cordyceps cardinalis
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Sung Gi-Ho
Shrestha Bhushan
Han Sang-Kuk
Kim Soo-Young
Sung Jae-Mo
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Abstract
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Cordyceps cardinalis successfully produced its fruiting bodies from multi-ascospore isolates. However, subcultures of multiascospore isolates could not produce fruiting bodies after few generations. Fruiting body production also differed from sector to sector of the same isolate. Single ascospore isolates were then co-inoculated in combinations of two to observe the fruiting characteristics. Combinations of certain isolates produced perithecial stromata formation, whereas other combinations did not produce any fruiting bodies. These results show that C. cardinalis is a heterothallic fungus, requiring two isolates of opposite mating types for fruiting body production. It was also shown that single ascospore isolates are hermaphrodites.
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KEYWORD
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Heterothallism, Homothallism, Mating system, Perithecial stromata, Subculture
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