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2004•Journal of Biological ControlRequires access

Effects of Avirulent Strains of Ralstonia solanacearum on Tomato Bacterial Wilt

HU Fang-ping

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Abstract

Avirulent strains (ATm044 and Asp061) of Ralstonia solanacearum were obtained via UV mutagenesis. It was demonstrated that the strains could colonize tomato tissue and induce tomato resistance against bacterial wilt but no inhibition to virulent strains. The strains were also tested as a biocontrol agent against tomato bacterial wilt in greenhouse and field. Result showed that the disease was reduced by 56.7% and 53.4% in greenhouse 20d after treatment and 53.8% and 37.7% in field 15d after treatment by ATm044 and Asp061 respectively.

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What this paper is about

Avirulent strains (ATm044 and Asp061) of Ralstonia solanacearum were obtained via UV mutagenesis. It was demonstrated that the strains could colonize tomato tissue and induce tomato resistance against bacterial wilt but no inhibition to virulent strains. The strains were also tested as a biocontrol agent against tomato bacterial wilt in greenhouse and field. Result showed that the disease was reduced by 56.7% and 53.4% in greenhouse 20d after treatment and 53.8% and 37.7% in field 15d after treatment by ATm044 and Asp061 respectively.

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Available abstract

Avirulent strains (ATm044 and Asp061) of Ralstonia solanacearum were obtained via UV mutagenesis. It was demonstrated that the strains could colonize tomato tissue and induce tomato resistance against bacterial wilt but no inhibition to virulent strains. The strains were also tested as a biocontrol agent against tomato bacterial wilt in greenhouse and field. Result showed that the disease was reduced by 56.7% and 53.4% in greenhouse 20d after treatment and 53.8% and 37.7% in field 15d after treatment by ATm044 and Asp061 respectively.

Key concepts: Ralstonia solanacearum, Bacterial wilt, Biology, Virulence, Microbiology, Biological pest control, Ralstonia, Bacteria

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