Pseudomonas syringae pv. solidagae pv. nov., the causal agent of bacterial leaf spot of tall goldenrod Solidago altissima L
2001
Sato, M. (National Inst. of Agrobiological Sciences, Tsukuba, Ibaraki (Japan)) | Watanabe, K. | Sato, Y.
A new bacterial disease of tall goldenrod (Solidago altissima L., ""Seitaka-awadachiso"" in Japanese), one of the most serious weeds in non-agricultural land, was discovered in Ibaraki Prefecture, Japan. Characterized by angular or round, dark brown necrotic spots on leaves, this disease resulted in defoliation and terminal dieback of the plants in severe cases. The disease was named ""bacterial leaf spot"". The causal bacterium was identified as Pseudomonas syringae based on its bacteriological properties including those determined by LOP AT tests. The present bacterium was pathogenic to tall goldenrod alone but not to many other tested plants including weeds, flowers, trees and crops. In addition, P. syringae pv. syringae and other pathovars did not show any pathogenicity to tall goldenrod. Because no pathovars of P. syringae pathogenic to tall goldenrod have been reported, the present bacterium was concluded to be a new pathovar of P. syringae. We propose the name P. syringae pv. solidagae pv. nov. , and strain Sei 1 (MAFF 810053) is designated as the pathotype strain and has been deposited in the MAFF collection with two reference strains (MAFF 810054 and MAFF81055).
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