Studies on Endophytic Actinomycetes (I) : Streptomyces sp. Isolated from Rhododendron and Its Antifungal Activity

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概要

• 論文の詳細を見る

• To survey endophytic actinomycetes as potential biocontrol agents against fungal diseases of rhododendron, young plants of rhododendron were surface-sterilized for use as an isolation source. Nine, six and two isolates, with distinguishing characteristics based on the macroscopic appearance of colonies, were obtained from roots, stems and leaves, respectively, suggesting that various species of actinomycetes grow in the respective organs of this plant as symbionts or parasites. On an agar medium, only isolate R-5 commonly formed a clear growth-inhibition zone against two major fungal pathogens of rhododendron, Phytophthora cinnamomi and Pestalotiopsis sydowiana, indicating that this isolate can produce antifungal material (s) . Acetone extracts of a liquid culture of R-5 had a broad antimicrobial spectrum against Gram-positive bacteria, yeast and filamentous fungi. Isolate R-5 was identified as a Streptomyces sp. based on morphological, physiological and chemotaxonomical characteristics. The present results indicate that isolate R-5 is a suitable candidate for the biocontrol of diseases of rhododendron.

• 日本植物病理学会の論文
• 2000-11-25

著者

• Yoshida Ryuji

  College Of Technology Toyama Prefectural University

• Yoshida R

  Department Of Agriculture Technology Toyama Prefectural University

• SHIMIZU Masafumi

  Graduate School of Bioresources, Mie University

• KUNOH Hitoshi

  Institute for Biological Process Research, Akatsuka Garden Co. Ltd.

• Kunoh Hitoshi

  Institute For Biological Process Research Akatsuka Garden Co. Ltd.

• Kunoh H

  Faculty Of Bioresources Mie University

• Kunoh H

  Mie Univ. Tsu‐city Jpn

• Kunoh Hitoshi

  Laboratory Of Plant Pathology Faculty Of Bioresources Mie University

• Kunoh Hitoshi

  Laboratory Of Ecological Circulation Mie University

• Otani H

  Faculty Of Agriculture Tottori University

• Furuki T

  Natural History Museum & Institute

• IGARASHI Yasuhiro

  Biotechnology Research Center, Toyama Prefectural University

• FURUMAI Tamotsu

  Biotechnology Research Center, Toyama Prefectural University

• SATO Yukio

  College of Technology, Toyama Prefecture University

• ONAKA Hiroyasu

  Biotechnology Research Center, Toyama Prefectural University

• Sato Y

  College Of Technology Toyama Prefectural University

• Sato Yukio

  放射線医学総合研究所

• Sato Yukio

  College Of Technology Toyama Prefectural University

• SHIMIZU Masafumi

  Laboratory of Ecological Circulation, Faculty of Bioresources, Mie University

• NAKAGAWA Yoshiko

  Akatsuka Orchid Co.Ltd.

• Furumai Tamotsu

  Biotechnology Research Center Toyama Prefectural University

• Tomoyuki Fujita

  Division Of Applied Biological Chemistry Graduate School Of Agriculture And Biological Sciences Osak

• Nakagawa Yoshiko

  Akatsuka Orchid Co. Ltd.

• Igarashi Yasuhiro

  Biotechnology Research Center Toyama Pref. Univ.

• Kato Hisaharu

  Laboratory Of Plant Pathology And Genetic Engineering College Of Agriculture Okayama University:(pre

• Onaka H

  Department Of Engineering Toyama Prefectural University

• Onaka Hiroyasu

  Biotechnology Research Center Toyama Prefectural University

• Shimizu Masafumi

  Graduate School Of Bioresources Mie University

• Shimizu Masafumi

  Laboratory Of Crop Production And Ecology Faculty Of Bioresources Mie University

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