メロンえそ斑点ウイルスの媒介菌Olpidium bornovanus に感染阻害効果を示す新規Bacillus 属菌の選抜

To create a new biological control technique for a necrotic spot disease on melons caused by Melon necrotic spot virus (MNSV), we screened bacteria collected from the soil of melon-cultivated fields for antagonism against the viral fungus vector, Olpidium bornovanus. The protective efficiency against O. bornovanus infection of melon roots and degree of suppression of MNSV accumulation in plants was evaluated. Strain BS-242 the best antagonist throughout these screenings, was identified as a new species of Bacillus sp., based on several biological properties and identity of its 16S rDNA sequence.