Control of plant diseases with secondary metabolite of Clitocybe nuda

Jin-Tong Chen; Jenn-Wen Huang

doi:10.1016/j.nbt.2009.08.012

Control of plant diseases with secondary metabolite of Clitocybe nuda

Journal

New Biotechnology

Journal Volume

26

Journal Issue

3-4

Pages

193-198

Date Issued

2009-10

Date

2009-10

Author(s)

Jin-Tong Chen

Jenn-Wen Huang

DOI

10.1016/j.nbt.2009.08.012

URI

https://scholars.tari.gov.tw/handle/123456789/3943

Abstract

Culture filtrates of five strains of Clitocybe nuda displayed various degrees of antimicrobial activity against plant pathogenic fungi and/or bacteria tested. The culture filtrate of C. nuda strain LA82 was very effective in reducing the incidence of Phytophthora blight of pepper caused by Phytophthora capsici and the incidence of leaf spot on pepper caused by Xanthomonas axonopodis pv. vesicatoria. The inhibitory substance in the C. nuda strain LA82 culture filtrate was stable at low and high pH. It was also stable at high temperature. The inhibitory substance was dialyzable in the membrane tubing with molecular weight cut-off of 1000 but not 500 or 100. It was also exchangeable by anion but not cation exchange resins, indicating that the inhibitor has a molecular weight between 1000 and 500, and negative charge on its molecule. The inhibitor is a hydrophilic compound, but not a protein.

Publisher

Elsevier

Type

journal article

File(s)

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