Suharjo, Radix and Hayakawa, T and Tsujimoto, H and Nomura, K and Sawada, H and Takikawa, Y (2009) Identification of Dickeya sp. isolated from bacterial stem rot of potato. Japanese Journal of Phytopathology, 75 (3). p. 272. ISSN 0031-9473

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Abstract

In 2007, stem rot and wilt symptoms were observed on potato plants in Shizuoka city. A bacterium was isolated from the symptoms and characterized as Dickeya sp. (former Erwinia chrysanthemi). It has been recorded as the pathogen, though, the species assignment of the organism in the genus Dickeya had not yet been confirmed. The isolates showed biochemical properties similar to those of E. chrysanthemi bv.1 (= pv. dianthicola), which is now presumed to be D. dianthicola. Through sequence analysis of the 16SrDNA, rpoD and gyrB genes, the potato isolates were allocated within a cluster together with D. dianthicola. Cross inoculation experiment of the potato isolates and a carnation isolate of D. dianthicola showed that both of the isolates can infect potato and carnation, having a tendency of stronger virulence against the original hosts. Therefore, the potato isolates were identified as D. dianthicola. Comparative genetic studies on related Dickeya strains isolated in Japan revealed that they are heterogeneous and some of them could not be allocated to existing Dickeya species.

Item Type:	Article
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Proteksi Tanaman
Depositing User:	RADIX SUHA
Date Deposited:	02 Jun 2017 06:49
Last Modified:	28 May 2018 03:26
URI:	http://repository.lppm.unila.ac.id/id/eprint/2756

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