Identification and characterization of non-pathogenic Fusarium oxysporum capable of increasing and decreasing Fusarium wilt severity

Forsyth, L. M., Smith, L. J. and Aitken, E. A. B. (2006) Identification and characterization of non-pathogenic Fusarium oxysporum capable of increasing and decreasing Fusarium wilt severity. Mycological Research, 110 8: 929-935. doi:10.1016/j.mycres.2006.03.008


Author Forsyth, L. M.
Smith, L. J.
Aitken, E. A. B.
Title Identification and characterization of non-pathogenic Fusarium oxysporum capable of increasing and decreasing Fusarium wilt severity
Journal name Mycological Research   Check publisher's open access policy
ISSN 0953-7562
Publication date 2006-08
Sub-type Article (original research)
DOI 10.1016/j.mycres.2006.03.008
Volume 110
Issue 8
Start page 929
End page 935
Total pages 7
Place of publication Oxford
Publisher Elsevier Science Ltd
Collection year 2006
Language eng
Subject C1
270403 Plant Pathology
620205 Tropical fruit
Abstract Fusarium wilt of banana is a potentially devastating disease throughout the world. Options for control of the causal organism, Fusarium oxysporum f.sp. cubense (Foc) are limited. Suppressive soil sites have previously been identified where, despite the presence of Foc, Fusarium wilt does not develop. In order to understand some aspects of this disease suppression, endophytic Fusarium oxysporum isolates were obtained from banana roots. These isolates were genetically characterized and compared with an isolate of Fusarium oxysporum previously identified as being capable of suppressing Fusarium wilt of banana in glasshouse trials. Three additional isolates were selected for glasshouse trials to assess suppression of Fusarium wilt in two different cultivars of banana, Cavendish and Lady Finger. One isolate (BRIP 29089) was identified as a potential biocontrol organism, reducing the disease severity of Fusarium wilt in Lady Finger and Cavendish cultivars. Interestingly, one isolate (BRIP 45952) increased Fusarium wilt disease severity on Cavendish. The implications of an isolate of Fusarium oxysporum, non-pathogenic on banana, increasing disease severity and the potential role of non-pathogenic isolates of Fusarium oxysporum in disease complexes are discussed. (c) 2006 Published by Elsevier Ltd on behalf of The British Mycological Society.
Keyword Banana
Biocontrol
Musa
Plant Pathology
Supressive Soils
Mycology
Disease-suppressive Soils
Biological-control
Genetic-variation
Take-all
Resistance
Arabidopsis
Plants
Tomato
Mechanisms
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 08:58:15 EST