Antifungal antibiotic “Funicularin” produced by Bacillus funicularis and its effect upon the susceptibility of rice seedling to Helminthosporium blight

Hiromu YOSHII; Yasuji ASADA; Akira KISO; Takao AKITA

doi:10.3186/jjphytopath.23.150

Antifungal antibiotic “Funicularin” produced by Bacillus funicularis and its effect upon the susceptibility of rice seedling to Helminthosporium blight

Hiromu YOSHII, Yasuji ASADA, Akira KISO, Takao AKITA

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JOURNAL FREE ACCESS

1958 Volume 23 Issue 3 Pages 150-154

DOI https://doi.org/10.3186/jjphytopath.23.150

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Published: October 30, 1958 Received: August 18, 1958 Available on J-STAGE: February 19, 2009 Accepted: - Advance online publication: - Revised: -
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Date of correction: February 19, 2009 Reason for correction: - Correction: DTRECEIVED Details: Right : 19580818

Date of correction: February 19, 2009 Reason for correction: - Correction: TITLE Details: Wrong : Antifungal antibiotic “Funicularin” produced by Bacillus funicularis and its effect upon the susceptibility of rice seedling to Helminthosporium blight
Right : Antifungal antibiotic “Funicularin” produced by Bacillus funicularis and its effect upon the susceptibility of rice seedling to Helminthosporium blight

Date of correction: February 19, 2009 Reason for correction: - Correction: ABSTRACT Details: Wrong : A new antifungal antibiotic was found from the culture filtrate of a bacterium, which had been isolated from the spot of Helminthosporium blight of rice plant. The bacterium is Bacillus funicularis Cluyver et Van Niel, and the antibiotic produced by the bacterium inhibits the germination of the conidia of Cochliobolus miyabeanus. This substance is named“Funicularin”temporalily. Bouillon medium is one of the most suitable media for the production of the antibiotic and the optimum conditions for the production are 4 days culture at 25∼30°C. in the medium with the initial pH 6∼7. The method of extraction and purification of this antibiotic is shown in Fig. 1. When B. funicularis was successively cultured in the medium containig Funicularin, the production of the substance markedly increases. The susceptibility of rice seedlings to Helminthosporium blight appears to be lowered by the immersion of roots in the culture filtrate, the index of the disease spot enlargement being considerably smaller than that of the nontreated.
Right : A new antifungal antibiotic was found from the culture filtrate of a bacterium, which had been isolated from the spot of Helminthosporium blight of rice plant. The bacterium is Bacillus funicularis Cluyver et Van Niel, and the antibiotic produced by the bacterium inhibits the germination of the conidia of Cochliobolus miyabeanus. This substance is named “Funicularin” temporalily. Bouillon medium is one of the most suitable media for the production of the antibiotic and the optimum conditions for the production are 4 days culture at 25-30°C. in the medium with the initial pH 6-7. The method of extraction and purification of this antibiotic is shown in Fig. 1. When B. funicularis was successively cultured in the medium containig Funicularin, the production of the substance markedly increases. The susceptibility of rice seedlings to Helminthosporium blight appears to be lowered by the immersion of roots in the culture filtrate, the index of the disease spot enlargement being considerably smaller than that of the nontreated.

Date of correction: February 19, 2009 Reason for correction: - Correction: CITATION Details: Wrong : 1) Breed, R. S. et al.: Bergey's Manual of determinative bacteriology, Baltimore (1948).

Right : 1) Breed, R.S. et al.: Bergey's Manual of determinative bacteriology, Baltimore (1948).

Date of correction: February 19, 2009 Reason for correction: - Correction: PDF FILE Details: -

Abstract

A new antifungal antibiotic was found from the culture filtrate of a bacterium, which had been isolated from the spot of Helminthosporium blight of rice plant. The bacterium is Bacillus funicularis Cluyver et Van Niel, and the antibiotic produced by the bacterium inhibits the germination of the conidia of Cochliobolus miyabeanus. This substance is named “Funicularin” temporalily. Bouillon medium is one of the most suitable media for the production of the antibiotic and the optimum conditions for the production are 4 days culture at 25-30°C. in the medium with the initial pH 6-7. The method of extraction and purification of this antibiotic is shown in Fig. 1. When B. funicularis was successively cultured in the medium containig Funicularin, the production of the substance markedly increases. The susceptibility of rice seedlings to Helminthosporium blight appears to be lowered by the immersion of roots in the culture filtrate, the index of the disease spot enlargement being considerably smaller than that of the nontreated.

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