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假稱 Yucca의 雲紋病

Studies on the Leat Spot Yueea causoa by Coniothyrium sp.

한국식물학회지 1961년 4권 1호 p.21 ~ 24
이구영,
소속 상세정보
이구영 (  ) - Chungbuk National University

Abstract


LEE, Gu Young (Ghoong Pook College, Chungju, Korea)-Studies on the leaf spot of Yucca caused by Coniothyrium sp. Kor. Jour. Bot., 4(1)2l~24‥1961.-The strains of fungus which belong to Coniothyrium genus were isolated from leaf spot of Yucca. The isolated strain can grow easily and forms characteristic colonies on Saido´s soy agar. There are definite differences, according to other authors,(By Miyake et Hara 1911) Pycnidio-spore are usually formfd ellipsoidal, dark brown, 4 x 2. 5-4. Oμ in size, whereas isolated strains are globose, yellowish brown, 2.8-4.2μ in diameter.
The positive inoculation test can be attained by burned petridish method, preserving it in incubator at 28℃, and the pycnidio-spore can be reisolated from the inoculated portion. (Photo.7)
Up to the present day there is no report for leaf spot of Yucca caused by Coniothyrium sp. Comparing the writer´s isolate with those fungi described (leaf spot of alloe, rose canker and elm canker etc.) hitherto, there are no accordance in the symptom and especially in morphological characters and Pathogenicitys.

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