Dissemination of Pseudomonas pseudoalcaligenes subsp. Konjaci, the causal agent of bacterial leaf blight of konnyaku(Amorphophallus konjac), from primary inoculum source to konnyaku leaflet.

概要

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Bacterial leaf blight of konnyaku was artificially induced by soil or seed corm inoculation. The bacterial suspension was drenched into the soil planted with konnyaku, when leaflets were fully expanded. The disease symptom was appeared on the leaflets at 14 days after inoculation. Mulching test suggested that the pathogenic bacterium existing on the soil surface might be directly splashed to leaflets by rain drops. Pathogenic bacterium existing on the seed corm multiplied on the bract after planting, followed by the rapid multiplication on leaflet. This fact suggested that the bacterium multiplied on the bract could migrate to the leaflets which were sprouting from inside of bract.
日本植物病理学会の論文