細菌性斑點 的英文怎麼說
中文拼音 [xìjūnxìngbāndiǎn]
細菌性斑點
英文
bacterial spot- 細 : 形容詞1 （條狀物橫剖面小） thin; slender 2 （顆粒小） in small particles; fine 3 （音量小） thin ...
- 菌 : 菌名詞1. （蕈） mushroom2. （姓氏） a surname
- 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
- 斑 : Ⅰ名詞（斑點; 斑紋; 污點; 瑕疵） spot; speck; speckle; stripe; stain Ⅱ形容詞（有斑點或斑紋的） spo...
- 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
- 細菌性 : bacterial
- 細菌 : germ; bacterium （pl. bacteria）; fungus （pl. fungi）
- 斑點 : spot; stain; speckle; freckle; fleck; dot; splodge; splotch; burl; flick; macula; measles; tache
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Pcr, pcr - southern blot analysis, southern dot blot analysis of lettuce dna confirmed that adw gene had been integrated into the plant genome. the results also showed that the transformation frequency of pb - adw was higher than that of pbg - adw, which suggested that camv35s promoter would be better than pi ii promoter in the case of transgenic lettuce
（ 3 ）細胞核載體pb - adw 、 pbg - adw均採用農桿菌介導法將adw導入萵苣，細胞核轉化獲得了生長良好的抗性萵苣植株，經pcr 、 pcr - southern 、 southern斑點雜交分析證實， adw基因已整合到萵苣基因組中。After electrophorised on 1 % agarose gel, the pcr production was purified with agarose gel dna extraction kit. the segment was ligated with vector pmd18 - t and then was tranformed into the competent cell of dh5 a. a construction mstnd - pmd18t was generated by inserting the sequence of 254bp into pmd18 - t vector and selecting the sense clones. positive clone was identified by three ways : endonuclease digestion, pcr and sequencing. the result showed that the cloned sequence coincides with the designed sequence. this construction was digested with nco i and xho i and ligated the pet28a ( + ) vector digested with the same enzymes using dna ligation kit. the production of ligation reaction was transformed into the competent cell of bl21 ( de3 ). after 12 - 16 hours of culture, several colnes appeared on the plate. some positive clones were selected to extract their plasmid. these plasmids were digested by nco i and xho i and indentified by pcr. a contraction, mstnd - pet28a was generated. the result showed that the cloned sequence coincides with the designed sequence
F _ 1長38bp ， r _ 1長36bp ，其它片段均40bp長， f _ 1和r _ 1片段兩端分別加上限制性內切酶nco和xho的識別位點序列。用成對單鏈片段進行延伸反應，然後用其他單鏈片段作為引物，進行pcr擴增，用dna快速純化回收試劑盒回收所得254bppcr產物，與pmd18 - t載體連接、轉化dh _ 5 。受體菌感受態細胞，利用藍白斑遺傳學篩選法篩選陽性克隆，提取其質粒，採用nco和xho雙酶切鑒定，獲得了254bp的片段；用pmd18 - t載體上的特異引物rv - m和m13 - 47進行pcr鑒定，獲得300bp的片段。
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