<Emphasis Type="Italic">Helicobasidium mompa</Emphasis> isolates from sweet potato in continuous monoculture fields |
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Authors: | Yukari Uetake Hitoshi Nakamura Ken-ichi Ikeda Masao Arakawa Naoyuki Matsumoto |
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Institution: | (1) National Institute for Agro-Environmental Sciences, Tsukuba 305-8604, Japan, JP;(2) Bio-oriented Technology Research Advancement Institution, National Institute for Agro-Environmental Sciences, Tsukuba, Japan, JP |
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Abstract: | Isolates of the violet root rot fungus Helicobasidium mompa were collected from herbaceous and tree plants. Their host preference was studied by inoculation experiments using carrots,
sweet potatoes, and apple stocks. It was found that sweet potato isolates from Kyushu produced infection cushions on carrots
and sweet potatoes but not on apple stocks. Other isolates did not show host preference. Sweet potato isolates were also characterized
by ready hyphal mass (sclerotium) production. They were thought to have adapted to the habitat with high disturbance by annual
tillage.
Received: July 15, 2002 / Accepted: September 26, 2002 |
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Keywords: | Helicobasidium mompa Violet root rot Sweet potato Kyushu Adaptation |
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