Accumulation and antifungal spectrum of rhaphiolepsin as a second new phytoalexin in Rhaphiolepis umbellata Makino

Accumulation and antifungal activity of a second newly isolated phytoalexin of Rhaphiolepis umbellata Makino, rhaphiolepsin, were described. The phytoalexin was accumulated in the leaves infected with Entomosporium mespili or Pestalotiopsis sp. The accumulation of 4'-methoxyaucuparin, the first...

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Veröffentlicht in:	Japanese Journal of Phytopathology 1991/12/25, Vol.57(5), pp.641-648
Hauptverfasser:	Widyastuti, S.M. (Saga Univ. (Japan). Faculty of Agriculture), Nonaka, F, Watanabe, K, Maruyama, E, Sako, N
Format:	Artikel
Sprache:	eng
Schlagworte:	ANTIFUNGAL PROPERTIES FITOALEXINA FONCTION PHYSIOLOGIQUE FUNCION FISIOLOGICA INOCULACION INOCULATION INOCULATION METHODS PHYSIOLOGICAL FUNCTIONS phytoalexin, rhaphiolepsin PHYTOALEXINE PHYTOALEXINS PROPIEDADES ANTIMICOSICAS PROPRIETE ANTIFONGIQUE Rhaphiolepis umbellata ROSACEAE
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container_end_page	648
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container_title	Japanese Journal of Phytopathology
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creator	Widyastuti, S.M. (Saga Univ. (Japan). Faculty of Agriculture) Nonaka, F Watanabe, K Maruyama, E Sako, N
description	Accumulation and antifungal activity of a second newly isolated phytoalexin of Rhaphiolepis umbellata Makino, rhaphiolepsin, were described. The phytoalexin was accumulated in the leaves infected with Entomosporium mespili or Pestalotiopsis sp. The accumulation of 4'-methoxyaucuparin, the first phytoalexin of R. umbellata, was started one day after inoculation and it remained stably for about 6 days and then declined during the next 6 days. On the other hand, rhaphiolepsin started to accumulate in the leaves at the 8th and reached the maximum accumulation of 2.147μg/g fresh leaves at 28th days after inoculation. The inhibitory action of rhaphiolepsin against the fungi was stronger than that of 4'-methoxyaucuparin.
doi_str_mv	10.3186/jjphytopath.57.641
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(Saga Univ. (Japan). Faculty of Agriculture) ; Nonaka, F ; Watanabe, K ; Maruyama, E ; Sako, N</creator><creatorcontrib>Widyastuti, S.M. (Saga Univ. (Japan). Faculty of Agriculture) ; Nonaka, F ; Watanabe, K ; Maruyama, E ; Sako, N</creatorcontrib><description>Accumulation and antifungal activity of a second newly isolated phytoalexin of Rhaphiolepis umbellata Makino, rhaphiolepsin, were described. The phytoalexin was accumulated in the leaves infected with Entomosporium mespili or Pestalotiopsis sp. The accumulation of 4'-methoxyaucuparin, the first phytoalexin of R. umbellata, was started one day after inoculation and it remained stably for about 6 days and then declined during the next 6 days. On the other hand, rhaphiolepsin started to accumulate in the leaves at the 8th and reached the maximum accumulation of 2.147μg/g fresh leaves at 28th days after inoculation. 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Faculty of Agriculture)</creatorcontrib><creatorcontrib>Nonaka, F</creatorcontrib><creatorcontrib>Watanabe, K</creatorcontrib><creatorcontrib>Maruyama, E</creatorcontrib><creatorcontrib>Sako, N</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><jtitle>Japanese Journal of Phytopathology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Widyastuti, S.M. (Saga Univ. (Japan). Faculty of Agriculture)</au><au>Nonaka, F</au><au>Watanabe, K</au><au>Maruyama, E</au><au>Sako, N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Accumulation and antifungal spectrum of rhaphiolepsin as a second new phytoalexin in Rhaphiolepis umbellata Makino</atitle><jtitle>Japanese Journal of Phytopathology</jtitle><addtitle>Jpn. J. Phytopathol.</addtitle><date>1991-12-25</date><risdate>1991</risdate><volume>57</volume><issue>5</issue><spage>641</spage><epage>648</epage><pages>641-648</pages><issn>0031-9473</issn><eissn>1882-0484</eissn><abstract>Accumulation and antifungal activity of a second newly isolated phytoalexin of Rhaphiolepis umbellata Makino, rhaphiolepsin, were described. The phytoalexin was accumulated in the leaves infected with Entomosporium mespili or Pestalotiopsis sp. The accumulation of 4'-methoxyaucuparin, the first phytoalexin of R. umbellata, was started one day after inoculation and it remained stably for about 6 days and then declined during the next 6 days. On the other hand, rhaphiolepsin started to accumulate in the leaves at the 8th and reached the maximum accumulation of 2.147μg/g fresh leaves at 28th days after inoculation. The inhibitory action of rhaphiolepsin against the fungi was stronger than that of 4'-methoxyaucuparin.</abstract><pub>The Phytopathological Society of Japan</pub><doi>10.3186/jjphytopath.57.641</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects	ANTIFUNGAL PROPERTIES FITOALEXINA FONCTION PHYSIOLOGIQUE FUNCION FISIOLOGICA INOCULACION INOCULATION INOCULATION METHODS PHYSIOLOGICAL FUNCTIONS phytoalexin, rhaphiolepsin PHYTOALEXINE PHYTOALEXINS PROPIEDADES ANTIMICOSICAS PROPRIETE ANTIFONGIQUE Rhaphiolepis umbellata ROSACEAE
title	Accumulation and antifungal spectrum of rhaphiolepsin as a second new phytoalexin in Rhaphiolepis umbellata Makino
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