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食线虫性真菌F088分生孢子在不同渗透压下萌发率的探究

Gansu Animal and Veterinary Sciences(2019)

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Abstract
为了探究食线虫真菌分生孢子在不同渗透压下的萌发情况,将保存于4℃下2%的玉米粉琼脂斜面培养基上编号为F088的食线虫性真菌Duddingtonia flagrans接到2%水琼脂培养基中培养,挑取分生孢子接入玉米粉琼脂培养基上进行反复纯化直至得到F088的纯培养物.将得到的纯培养物接种到2%麸皮液体培养基中培养8 d后再转入粮食培养基中培养21 d.取培养好的粮食固体捣碎后用0.1%吐温80冲洗孢子后用超声波分离菌丝并离心洗掉残留在孢子表面的吐温,最后将得到的孢子均匀涂布到不同渗透压的马铃薯琼脂培养基平板上培养24 h后计数孢子萌发率.最终发现孢子萌发率与培养基的渗透压有关,渗透压高的条件下孢子的萌发率非常低.
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