Umemura K, Ogawa N, Yamauchi T, Iwata M, Shimura M, Koga J Cerebroside elicitors found in diverse phytopathogens activate defense responses in rice plants Plant and Cell Physiology41 (2000)
676-683
Publication DOI:10.1093/pcp/41.6.676 Journal NLM ID:9430925 Publisher: Tokyo: Oxford University Press Correspondence: kenji_umemurameiji.co.jp Institutions: Bioscience Laboratories, Meiji Seika Kaisha Ltd., 5-3-1, Chiyoda, Sakado-shi, Saitama, 350-0289 Japan, Plant Biological Defense System Laboratories, 1962, Sone, Nishikawa-machi, Nishikanbara-gun, Niigata, 959-0422 Japan
Cerebrosides A and C, compounds categorized as glycosphingolipids, were isolated in our previous study from the rice blast fungus (Magnaporthe grisea) as novel elicitors which induce the synthesis of rice phytoalexins. In this paper, these cerebroside elicitors showed phytoalexininducing activity when applied to plants by spray treatment and also induced the expression of pathogenesis-related (PR) proteins in rice leaves. This elicitor activity of the cerebrosides showed the structural specificity as that for the induction of phytoalexins. Ceramides prepared from the cerebrosides by removal of glucose also showed the elicitor activity even in lower level compared to the cerebrosides. In field experiments, the cerebroside elicitors effectively protected rice plants against the rice blast fungus, an economically devastating agent of disease of rice in Japan. The cerebrosides elicitors protected rice plants from other disease as well and were found to occur in a wide range of different phytopathogens, indicating that cerebrosides function as general elicitors in a wide variety of rice-pathogen interactions.
Umemura K, Ogawa N, Yamauchi T, Iwata M, Shimura M, Koga J Cerebroside elicitors found in diverse phytopathogens activate defense responses in rice plants Plant and Cell Physiology41 (2000)
676-683
Publication DOI:10.1093/pcp/41.6.676 Journal NLM ID:9430925 Publisher: Tokyo: Oxford University Press Correspondence: kenji_umemurameiji.co.jp Institutions: Bioscience Laboratories, Meiji Seika Kaisha Ltd., 5-3-1, Chiyoda, Sakado-shi, Saitama, 350-0289 Japan, Plant Biological Defense System Laboratories, 1962, Sone, Nishikawa-machi, Nishikanbara-gun, Niigata, 959-0422 Japan
Cerebrosides A and C, compounds categorized as glycosphingolipids, were isolated in our previous study from the rice blast fungus (Magnaporthe grisea) as novel elicitors which induce the synthesis of rice phytoalexins. In this paper, these cerebroside elicitors showed phytoalexininducing activity when applied to plants by spray treatment and also induced the expression of pathogenesis-related (PR) proteins in rice leaves. This elicitor activity of the cerebrosides showed the structural specificity as that for the induction of phytoalexins. Ceramides prepared from the cerebrosides by removal of glucose also showed the elicitor activity even in lower level compared to the cerebrosides. In field experiments, the cerebroside elicitors effectively protected rice plants against the rice blast fungus, an economically devastating agent of disease of rice in Japan. The cerebrosides elicitors protected rice plants from other disease as well and were found to occur in a wide range of different phytopathogens, indicating that cerebrosides function as general elicitors in a wide variety of rice-pathogen interactions.
Methods: Western blot, bioassays, chemical procedures Biological activity: phytoalexin-inducing activity Comments, role: Mycosphaerella pinodes is indicated as Mycospaerella pinodes or Mycosperella pinodes in the paper
Umemura K, Ogawa N, Yamauchi T, Iwata M, Shimura M, Koga J Cerebroside elicitors found in diverse phytopathogens activate defense responses in rice plants Plant and Cell Physiology41 (2000)
676-683
Publication DOI:10.1093/pcp/41.6.676 Journal NLM ID:9430925 Publisher: Tokyo: Oxford University Press Correspondence: kenji_umemurameiji.co.jp Institutions: Bioscience Laboratories, Meiji Seika Kaisha Ltd., 5-3-1, Chiyoda, Sakado-shi, Saitama, 350-0289 Japan, Plant Biological Defense System Laboratories, 1962, Sone, Nishikawa-machi, Nishikanbara-gun, Niigata, 959-0422 Japan
Cerebrosides A and C, compounds categorized as glycosphingolipids, were isolated in our previous study from the rice blast fungus (Magnaporthe grisea) as novel elicitors which induce the synthesis of rice phytoalexins. In this paper, these cerebroside elicitors showed phytoalexininducing activity when applied to plants by spray treatment and also induced the expression of pathogenesis-related (PR) proteins in rice leaves. This elicitor activity of the cerebrosides showed the structural specificity as that for the induction of phytoalexins. Ceramides prepared from the cerebrosides by removal of glucose also showed the elicitor activity even in lower level compared to the cerebrosides. In field experiments, the cerebroside elicitors effectively protected rice plants against the rice blast fungus, an economically devastating agent of disease of rice in Japan. The cerebrosides elicitors protected rice plants from other disease as well and were found to occur in a wide range of different phytopathogens, indicating that cerebrosides function as general elicitors in a wide variety of rice-pathogen interactions.
Methods: Western blot, bioassays, chemical procedures Biological activity: phytoalexin-inducing activity Comments, role: Mycosphaerella pinodes is indicated as Mycospaerella pinodes or Mycosperella pinodes in the paper
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