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Gaeumannomyces graminis var. tritici 에 의한 벼 엽초 썩음병
성재모,박종성,이승찬 한국균학회 1982 韓國菌學會誌 Vol.10 No.4
Gaeumannomyces graminis var. tritici was first isolated from rice in 1981. Sheath rot of rice seedling in box culture for machine transplanting was produced by artificial inoculation of the causal organism. Especially sheath rot was developed from crown to leaf sheath above water level. Perithecia were usually formed in dead leaf sheaths and in PDA culture. They were black, globose, and immersed with obliquely crumpent neck. Asci were unitunicate with an apical ring and contained 8 spores. Ascospores were hyline, slender, 80∼104 um in length. Each spore showed 3∼4 septa. Based on morphological and cultura characteristics, the isolate from seeds was identified as Gaeumannomyces graminis (Sacc.) Arx & Olivier tritici J. Walker.
수확전 논의 벼줄기에 감염된 Fusarium moniliforme 에서의 Gibberella 자낭각의 발생
성재모,스나이더 한국균학회 1977 韓國菌學會誌 Vol.5 No.1
This study was made in order to determine which Gibberella species were occurring on rice stems and seeds in the field, and their survival 5 months after harvest time. An average 12% of plants infected with 'Bakanae' disease occurred in 4 fields planted with non-treated seed. Prior to harvest, more perithecia of Gibberella moniliformis occurred on infected rice stems than of Gibberella rosea. But Gibberella rosea was most common on the seed, and perithecia of this species also survived best until spring. F. moniliforme, F. roseum and Ophiobolus sp. were isolated from seedlings planted from naturally infected seed at the rates of 10, 25 and 8% respectively and from infected stems at rates of 3, l0 and 2% respectively. Perithecia of Gibberella rosea survived through the winter on naturally infected rice stems when kept dry indoors, buried in field soil, or places in straw stockes in the field. They did not survive on straw left on the soil surface during the very cold and dry conditions of the 1976-'77 winter.