国立研究開発法人 国際農林水産業研究センター | JIRCAS

Biological Soil Disinfestation (BSD) of Soilborne Pathogens and Its Possible Mechanisms

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Biological soil disinfestation (BSD) is one of the methods for soil disinfestation recently developed and consists of organic amendment, irrigation, and covering the soil surface with plastic film. BSD trials with artificially infested soils effectively killed Fusarium oxysporum f. sp. lycopersici and Ralstonia solanacearum. F. oxysporum f. sp. lycopersici was not detected 9 days after treatment. Application of BSD to R. solanacearum-infested soil decreased disease severity 4 weeks after transplantation. Reduction in soil pH and Eh was observed in the BSD-treated soil. HPLC analysis revealed the accumulation of acetic acid and butyric acid in the soil and the disinfestation effect of BSD was almost reproduced by mixing these organic acids with the infested soil. Volatile compound(s) evolved in the BSD-treated soil was also suggested to contribute to disinfestation. PCR-DGGE (PCR-denaturing gradient gel electrophoresis) analysis revealed the increase in the abundance of several bacteria in the BSD-treated soil, and two of them had 100% similarity with potential organic acid producers, Clostridium sp. and Enterobacter sp.

刊行年月2008-01-01
作成者MOMMA Noriaki
著者キーワード

anaerobic bacteria

bacterial wilt

Fusarium wilt

organic acids

soil reduction

公開者Japan International Research Center for Agricultural Sciences
データ作成日2008-01-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
42
1
開始ページ7
終了ページ12
DOI10.6090/jarq.42.7
権利Japan International Research Center for Agricultural Sciences
言語eng