Functional moiety for the antifungal activity of phytocassane E, a diterpene phytoalexin from rice

Jinichiro Koga; Noriko Ogawa; Toyozo Yamauchi; Minako Klkuchi; Nagahiro Ogasawara; Masaru Shimura

doi:10.1016/S0031-9422(96)00534-1

Functional moiety for the antifungal activity of phytocassane E, a diterpene phytoalexin from rice

Jinichiro Koga
, Noriko Ogawa
, Toyozo Yamauchi
, Minako Klkuchi
, Nagahiro Ogasawara
, Masaru Shimura

Meiji Holdings Co., Ltd.
Plant Biol. Def. System Laboratories

研究成果: ジャーナルへの寄稿 › 記事 › 査読

112 被引用数 (Scopus)

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Large amounts of phytoalexins were produced in suspension-cultured rice cells by treatment with a mycelial extract of the potato pathogenic fungus Phytophthora infestans. Among them, a new cassane-type diterpene, designated phytocassane E, was isolated and identified as 1β-hydroxy-12,15-cassadien- 3,11-dione. The ED₅₀ values of phytocassane E in the prevention of spore germination and germ tube growth of the rice pathogenic fungus Magnaporthe grisea were 6 and 2 μg ml^-1, respectively. This result, together with earlier results, suggests that the hydroxyl group at the C-1 position is the main functional moiety for the high antifungal activity of phytocassane E.

本文言語	英語
ページ（範囲）	249-253
ページ数	5
ジャーナル	Phytochemistry
巻	44
号	2
DOI	https://doi.org/10.1016/S0031-9422(96)00534-1
出版ステータス	出版済み - 1月 1997
外部発表	はい

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title = "Functional moiety for the antifungal activity of phytocassane E, a diterpene phytoalexin from rice",

abstract = "Large amounts of phytoalexins were produced in suspension-cultured rice cells by treatment with a mycelial extract of the potato pathogenic fungus Phytophthora infestans. Among them, a new cassane-type diterpene, designated phytocassane E, was isolated and identified as 1β-hydroxy-12,15-cassadien- 3,11-dione. The ED50 values of phytocassane E in the prevention of spore germination and germ tube growth of the rice pathogenic fungus Magnaporthe grisea were 6 and 2 μg ml-1, respectively. This result, together with earlier results, suggests that the hydroxyl group at the C-1 position is the main functional moiety for the high antifungal activity of phytocassane E.",

keywords = "diterpenes, elicitors, Gramineae, Magnaporthe grisea, Oryza sativa, phytoalexins, phytocassane E, Phytophthora infestans, rice",

author = "Jinichiro Koga and Noriko Ogawa and Toyozo Yamauchi and Minako Klkuchi and Nagahiro Ogasawara and Masaru Shimura",

year = "1997",

month = jan,

doi = "10.1016/S0031-9422(96)00534-1",

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T1 - Functional moiety for the antifungal activity of phytocassane E, a diterpene phytoalexin from rice

AU - Koga, Jinichiro

AU - Ogawa, Noriko

AU - Yamauchi, Toyozo

AU - Klkuchi, Minako

AU - Ogasawara, Nagahiro

AU - Shimura, Masaru

PY - 1997/1

Y1 - 1997/1

N2 - Large amounts of phytoalexins were produced in suspension-cultured rice cells by treatment with a mycelial extract of the potato pathogenic fungus Phytophthora infestans. Among them, a new cassane-type diterpene, designated phytocassane E, was isolated and identified as 1β-hydroxy-12,15-cassadien- 3,11-dione. The ED50 values of phytocassane E in the prevention of spore germination and germ tube growth of the rice pathogenic fungus Magnaporthe grisea were 6 and 2 μg ml-1, respectively. This result, together with earlier results, suggests that the hydroxyl group at the C-1 position is the main functional moiety for the high antifungal activity of phytocassane E.

AB - Large amounts of phytoalexins were produced in suspension-cultured rice cells by treatment with a mycelial extract of the potato pathogenic fungus Phytophthora infestans. Among them, a new cassane-type diterpene, designated phytocassane E, was isolated and identified as 1β-hydroxy-12,15-cassadien- 3,11-dione. The ED50 values of phytocassane E in the prevention of spore germination and germ tube growth of the rice pathogenic fungus Magnaporthe grisea were 6 and 2 μg ml-1, respectively. This result, together with earlier results, suggests that the hydroxyl group at the C-1 position is the main functional moiety for the high antifungal activity of phytocassane E.

KW - diterpenes

KW - elicitors

KW - Gramineae

KW - Magnaporthe grisea

KW - Oryza sativa

KW - phytoalexins

KW - phytocassane E

KW - Phytophthora infestans

KW - rice

UR - https://www.scopus.com/pages/publications/0031038405

U2 - 10.1016/S0031-9422(96)00534-1

DO - 10.1016/S0031-9422(96)00534-1

M3 - 記事

AN - SCOPUS:0031038405

SN - 0031-9422

VL - 44

SP - 249

EP - 253

JO - Phytochemistry

JF - Phytochemistry

IS - 2

ER -

Functional moiety for the antifungal activity of phytocassane E, a diterpene phytoalexin from rice

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