胡瓜炭疽病菌の完全時代に關する研究

概要

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The writers found the ascigerous stage of the cucumber anthracnose fungus, Colletotrichum lagenarium (PASS.) ELLIS et HALSTED, in a potato agar culture in March 1949. Morphological examinations proved the fungus to be included in the genus Glomerella. The amount of production of ascospore was scarcely effected by temperature, but the rate of ascosporic production was delayed under higher temperature (25-30℃) than under lower temperature (20-15℃). The fungus produced ascospores more copiously and rapidly in potato-decoction and potato-decoction-agar cultures, compared with cultures on other kinds of media. The fungus differs in important respects from previously described species of Glomerella, especially from the bean anthracnose fungus, Glomerella Lindemuthianum (SACC. et MAG.) SHEAR and is here designated a new species. Glomerella lagenaria (PASS.) WATANABE et TAMURA, nov. sp. Perithecia spherical, subspherical or pyriform, membranous, immersed in a stroma, dark-brown, 112-256 μ in diameter; asci sessile, clavate or cylindrical, hyaline, 47.5-77.5 μ in length and 7.5-11.25 μ in width ; ascospores 8, hyaline, oblong, slightly curved or straight, elliptical or fusoid, 1-celled, 12.5-27.5 μ in length and 3.75-6.25 μ in width; paraphyses none. Conidial stage: Colletotrichum lagenarium (PASS.) ELLIS et HALSTED in Bull. Torrey Bot. Club, Vol. 20, pp. 109-112, 1893.
日本植物病理学会の論文
1952-09-15