Study on the Apriona germari(Hope) larvae''s intestinal bacterial flora]
桑粒肩天牛幼虫肠道菌群的研究

Intestinal flora of 47 Apriona germari(Hope) larvae, collected from fields, had been isolated and identified. The results showed that the predominant bacteria were Staphylococcus. Its viable count was 7.63 +/- 0.21, and the detection rate was 100%. Meanwhile, a strain of cellulose-utilizing bacterium was isolated from the fore-midgut fluid of A. germari larvae with the cellulose-congo red agar medium. The bacterium was tentatively identified as Cellulomonas. The detection rate of the cellulolytic bacterium was 23.40%, and the count was 3.84 +/- 0.54 approximately. Its contribution to the borer's cellulose digestion needs further investigations.