partially screened 中文意思是什麼
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There is no acrystalliferous derivative was screened after treating 4. 5 g / ml ethidium bromide, but after elevating growth temperature of ybt - 1463 and other 8 bacillus thuringiensis parental strains to 42, 9 acrystalliferous derivative were obtained. a series of partially plasmid - cured derivatives were further obtained from 3 acrystalliferous derivatives originated from wild - type strain ybt - 1463 by elevating temperature to 44
用限量培養基和42培養9株野生菌株，結果篩選到9株cry ~ -突變株；繼續升溫至44來培養其中的三個cry ~ -突變株，得到內生質粒被進一步消除的突變株。
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