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KMID : 1160220050330040240
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Mycobiology
2005 Volume.33 No. 4 p.240 ~ p.242
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Soft Rot of Tomato Caused by Mucor racemosus in Korea
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Kwon Jin-Hyeuk
Hong Seung-Beom
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Abstract
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A soft rot of fruits caused by Mucor racemosus occurred on cherry tomato collected in Agricultural Products Wholesale Market in Jinju, Korea. The disease infection usually occurred wounded areas after cracking of fruits. At first, the lesions started with water soaked and rapidly softened and diseased lesion gradually expanded. Colonies were white to brownish to gray in color. Sporangia were 32~54 μm in size and globose in shape. Sporangiophores were 8~14 μm in width. Sporangiospores were 5~12 × 4~8 μm in size, ellipsoidal to subglobose in shape. Columella was 27~42 μm in size, obovoid, ellipsoidal, cylindrical-ellipsoidal, slightly pyriform in shape. Chlamydospores were numerous in sporangiophores and barrelshaped when young, subglobose in old cultures. Optimum growth temperature was about 25oC. The fungus was identified as M. racemosus Fres.. This is the first report of soft rot on cherry tomato caused by M. racemosus in Korea.
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KEYWORD
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Cherry tomato, Mucor racemosus, Soft rot
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