日本植物病理学会報
Online ISSN : 1882-0484
Print ISSN : 0031-9473
ISSN-L : 0031-9473
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トウモロコシのフモニシン汚染に対する抵抗性を評価する試験法の検討:自然感染条件と人為接種法の比較
岡部 郁子
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ジャーナル フリー

2017 年 83 巻 3 号 p. 151-157

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Several Fusarium species can contaminate forage maize with fumonisin toxins, but levels can vary depending on cultivar resistance. When maize cultivars were evaluated for levels of fumonisin contamination, fumonisins in 31P41 were very low after natural infection without inoculation but were as high as in other cultivars after wound inoculation, whereas SH3815 was low under both conditions. We supposed that 31P41 was contaminated with a high level of fumonisins after wound inoculation because it had only physical barriers to fungal infection, whereas SH3815 had post-infection defense. However, injuring kernels without inoculation resulted in a high level of contamination in SH3815, thus discounting post-infection defense. Since it is unclear what type of defense is being evaluated in cultivars after wound inoculation, natural infection is preferred for the evaluations.

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© 2017 日本植物病理学会
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