Journal of Plant Pathology (2020) 102, 193-199

Rohaya Ibrahim, Noor Wahida Ismail-Suhaimy, Tan Shu-Qing, Siti Izera Ismail, Nuraizat Abidin, Mansor Hakiman, Daljit Singh Karam, Muhammad Saiful Ahmad-Hamdani, Mohd Termizi Yusof and Dzarifah Zulperi (2020)
Molecular characterization and phylogenetic analysis of Pantoea stewartii subspecies stewartii causing bronzing disease of jackfruit in Malaysia based on cps and hrp gene sequences
Journal of Plant Pathology 102 (1), 193-199
Abstract: Bronzing disease of jackfruit was first detected in plantation areas in Selangor and Pahang, Malaysia. The symptoms included reddish discoloration of the affected fruit pulp and rags, which could reduce the fruit quality and discourage purchasers. In this study, species-specific PCR amplification with primers encoded for cps and hrp virulence genes showed all bacterial strains isolated from infected jackfruits with bronzing symptoms, displaying a 1.1 kb and 0.9 kb amplicon. Phylogenetic analyses of the cps and hrp gene sequences clustered all strains to Pantoea stewartii subspecies stewartii (P. stewartii subsp. stewartii) reference strains (GenBank accession Nos. AF077292, AF282857, KY965964 and KY965965), with 62 to 80% similarity. Results revealed the presence of these virulence genes in P. stewartii subsp. stewartii strains is required for pathogenicity of the bacterium in jackfruit.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Dzarifah Zulperi

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pantoea stewartii	Breadfruit/jackfruit (Artocarpus)	Malaysia