The use of Pantoea agglomerans and Flavobacterium sp. to control banana pathogens

Article


Gunasinghe, R. Niroshini, Ikiriwatte, Chamari J. and Karunaratne, Anjani M.. 2004. "The use of Pantoea agglomerans and Flavobacterium sp. to control banana pathogens." Journal of Horticultural Science and Biotechnology. 79 (6), pp. 1002-1006. https://doi.org/10.1080/14620316.2004.11511852
Article Title

The use of Pantoea agglomerans and Flavobacterium sp. to control banana pathogens

ERA Journal ID5392
Article CategoryArticle
AuthorsGunasinghe, R. Niroshini (Author), Ikiriwatte, Chamari J. (Author) and Karunaratne, Anjani M. (Author)
Journal TitleJournal of Horticultural Science and Biotechnology
Journal Citation79 (6), pp. 1002-1006
Number of Pages5
Year2004
Place of PublicationUnited Kingdom
ISSN0022-1589
1462-0316
Digital Object Identifier (DOI)https://doi.org/10.1080/14620316.2004.11511852
Web Address (URL)https://www.tandfonline.com/doi/abs/10.1080/14620316.2004.11511852
Abstract

Two local isolates of the biocontrol agents Flavobacterium sp. [W5481 (a)] and Pantoea agglomerans (W5482) were tested on 'Embul' (Musa, AAB) banana, to determine their effects on crown rot pathogens [Colletotrichum musae and Botryodiplodia theobromae (Lasiodiplodia theobromae)]. Viable cell preparations reduced crown rot on banana hands, with live cells in distilled water more effective than those in spent culture media. Thin layer chromatography-bioassays showed that the antibiotics of Flavobacterium sp. were more potent than those of P. agglomerans, with Rf values from inhibited areas on the plates varying with the test fungus (C. musae, B. theobromae and Cladosporium cladosporioides). Autoclaving partially reduced the activity of cell-free culture medium (CFCM) on pathogen growth. Rot development on peel disks was suppressed by live cells, but not by CFCM. There were no rots with thiabendazole. In spite of the differences in antibiotic production by the antagonists, live cells of P. agglomerans suppressed crown rot to the greatest extent. Antibiosis did not completely explain the antagonism of the bacteria. Bioformulations reduced crown rot development, and were stable after at least 6 months of storage. Although not as effective as thiabendazole, the two local isolates have some potential for the biocontrol of banana pathogens.

KeywordsErwinia-herbicola; Crown rot; Antibiotic production; Brown-rot; Biocontrol; Amylovora; Disease
ANZSRC Field of Research 2020310805. Plant pathology
Byline AffiliationsUniversity of Peradeniya, Sri Lanka
Institution of OriginUniversity of Southern Queensland
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