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A substance inducing teliospore production in wheat leaf rust,Puccinia recondita f. sp.tritici |
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| Authors: | Tomoo Hosoe Tatsuya Sano Hideo Nishikawa Koohei Nozawa Ken-ichi Kawai Yuichi Yamaoka Keizo Katsuya Tsuyoshi Sato Hiroshi Hagiwara Hatsuo Saito |
| Affiliation: | (1) Faculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, 142-8501 Tokyo, Japan;(2) Institute of Agriculture and Forestry, University of Tsukuba, 305-8572 Tsukuba, Ibaraki, Japan;(3) National Agricultural Research Center, 305-8666 Tsukuba, Ibaraki, Japan |
| Abstract: | A substance inducing teliospore production inPuccinia racondita f. sp.tritici was found in water and methanol extracts of wheat leaves with telia of the wheat leaf rust just before harvest time. Methanol (MeOH) and water extracts from uninfected wheat leaves also showed telia-inducing activity. However, the MeOH and water extracts from wheat leaves covered with telia showed much stronger activity than those from uninfected wheat leaves. We obtained a fraction (0.2 mg) showing activity at 2 ng/ml by purification of the water extract. |
| Keywords: | Puccinia recondita f. sp.tritici teliospore teliospore production wheat leaf rust |
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