B1 and B2 didn t secrete polysaccharose on beef polypeptone agar medium(BPA) and the nematode didn t grow on BPA medium with B1 and B2,while B1 and B2 secreted polysaccharose on PSA medium.
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美
- 用牛肉膏蛋白胨細菌培養基培養B1和B2兩種細菌時(shí),細菌無(wú)多糖產(chǎn)生,線(xiàn)蟲(chóng)不能取食細菌而生長(cháng)繁殖;當用馬鈴薯蔗糖真菌培養基培養B1和B2兩種細菌時(shí),細菌分泌豐富的多糖,線(xiàn)蟲(chóng)生長(cháng)繁殖較好。
