Pathogen-produced ethylene and the Colletotrichum musae-banana fruit pathosystem

Daundasekera, W.A.M., Joyce, D.C., Adkikaram, N.K.B. and Terry, L.A. (2008) Pathogen-produced ethylene and the Colletotrichum musae-banana fruit pathosystem. Australasian Plant Pathology, 37 5: 448-453. doi:10.1071/AP08038


Author Daundasekera, W.A.M.
Joyce, D.C.
Adkikaram, N.K.B.
Terry, L.A.
Title Pathogen-produced ethylene and the Colletotrichum musae-banana fruit pathosystem
Formatted title
Pathogen-produced ethylene and the Colletotrichum musae-banana fruit pathosystem
Journal name Australasian Plant Pathology   Check publisher's open access policy
ISSN 0815-3191
1448-6032
Publication date 2008-01-01
Year available 2008
Sub-type Article (original research)
DOI 10.1071/AP08038
Open Access Status
Volume 37
Issue 5
Start page 448
End page 453
Total pages 6
Editor Harrower, K.
Place of publication Australia
Publisher CSIRO Publishing
Language eng
Subject C1
820214 Tropical Fruit
070605 Post Harvest Horticultural Technologies (incl. Transportation and Storage)
Abstract Colletotrichum musae isolate CM100 is capable of producing ethylene in vitro on methionine-supplemented basal medium. This isolate also produced ethylene on peel extracts of banana fruit that contained methionine at 0.31-0.42 mu mol/g fresh weight. Ethylene production rates by fresh banana peel strip explants and by whole fruit were not significantly increased after C. musae infection compared with non-infected control tissues. Moreover, exogenous application of methionine did not increase either ethylene production or disease severity on banana peel strips or on whole fruit. Overall, these findings suggest that C. musae could not utilise methionine in the host tissue for ethylene production. Autoclaved banana peel strips produced negligible amounts of ethylene compared with non-autoclaved tissues irrespective of C. musae infection. This observation suggests that ethylene evolved by C. musae-infected banana tissues is of host origin. Considered collectively, the results of this study indicate that the ability of C. musae to produce ethylene in vitro does not play a role in its pathogenicity in planta.
Keyword Anthracnose
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Tue, 14 Apr 2009, 19:24:13 EST by Emma Cushworth on behalf of School of Land, Crop and Food Sciences