parental strain 中文意思是什麼
parental strain
解釋
親代菌株-
The resulting derivative strains produced antifungal activity in a manner different from the parental strain, indicating the original promoter was replaced with the engineered promoters and the epitopes
衍生菌株合成抗真菌抗生素的產量與親本菌株不同，表明fr - 008基因的原始啟動子已被改造后的啟動子和抗原決定簇所代替。 -
The total amount of avermectins b were only about 0. 5 ~ 2 % of those produced by the parental strain olm73 - 12. this study suggests that t
在281個突變株中，還篩選到了2個突變株，其發酵產物幾乎全部為有效組分阿維菌素b1 ， b2組分僅佔5 。 -
Shaking flask experiments and hplc analyses showed that 99 isolates still produced four components of avermectins b, in which the yields of avermectins b in 82 isolates were only about 0. 1 ~ 2 % of those produced by the parental strain olm73 - 12. 2 of 82 isolates were confirmed to be the correct gene replacement mutants by pcr and sequence analysis. the mutant only producing avermectins bl was not detected
搖瓶發酵和hplc分析結果表明，有99個突變株仍然產阿維菌素b的4個組分，其中82株的發酵單位很低，僅為出發菌株olm73 - 12的0 . 1 2 ，從中挑取2株經pcr擴增和測序驗證，均發生了正確的基因取代；沒有檢測到僅產b1的突變株，這表明阿維菌素b2組分的產生並不是因為阿維菌素pks上dh2的部分活性所造成。 -
The donkey - adapted strain of eiav ( dv116 ), parental strain of eiav - dla, is a highly virulent isolate which was developed by sequential passaging a virulent eiav strain in donkeys in 1970s. the donkeys inoculated with fatal doses of eiav d strain can always be killed within in the first acute disease period. in this study, we constructed a full - length provirus dna clone of dv116 by pcr
本實驗中將eiav驢強毒dv體外感染驢白細胞培養物，一定時間后收獲病毒（本文中簡稱dv116 ） ，提取eiav前病毒dna ，以pcr法分別擴增並克隆了包含全長基因的三段前病毒dna片段，以雙脫氧法測定了dv116病毒全基因序列共8236個核苷酸。 -
Comparing with the y7, the specific growth rate of mutant increased by 22. 7 %, the activities of neutral and acid trehalase droped by 19. 2 % and 6. 7 %, respectively. under the non - optimized condition, the production of trehalose increased by 57. 2 % compared with that of parental strain y7
與原菌株y7相比較，對數期比生長速率提高22 . 7 ，酸性海藻糖分解酶活性下降19 . 2 ，中性海藻糖分解酶活性下降26 . 7 ，胞內海藻糖含量提高了57 . 2 。 -
Plant assay was performed with the wild - type strain gx201, the mutant strain gx217 and the function recovered strain rgx217. the results indicate that the mutant strain gx217 showed a day delay in nodulation time and its abilities of nodule formation efficiency and competitive nodulation were apparently decreased compared with the parental strain gx201 respectively
通過對野生型菌株gx201 ，突變體菌株gx217及其功能互補菌株rgx217進行植株試驗，發現突變體菌株gx217在結瘤時間方面較野生型菌株gx201慢一天，其結瘤效率及競爭結瘤能力均比gx201明顯降低。 -
Compared to its parental virus bartha - k61 strain, it displayed no obvious differences in virus multiplication and cytopathogenic effects in different cell cultures ( pk - 15, ibrs2, vero and cef )
在不同的細胞上（ pk - 15 、 ibrs2 、 vero和cef ）對重組病毒的病毒滴度和病變與親本毒進行比較，未發現顯著差異。 -
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。 -
This result indicated that the virus pd70344v derived from the infectious molecular clone is a highly virulent strain which had inherited main characters from its parental virus dv
這一結果說明本文所構建的感染性分子克隆株pd70344v具有其親本dv株的基本生物學性狀，是一株具有高致病力的衍生病毒。 -
Through the test, the strain of y7, which had the highest content of trehalose and strong tolerance to sodium chloride and acetic acid, was defined as a parental strain
綜合耐性實驗和海藻糖積累實驗的結果，確定了海藻糖含量高，滲透壓和乙酸耐性最強的y7菌株為本研究出發菌株。
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