activation vector 中文意思是什麼
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The gpa1 gene was obtained via pcr amplification and was cloned in the two - hybrid dna binding domain vector pgbkt7 the combinant plasmid was designated as pgbkt7 - ga. - galactosidase assay indicated that got did not have the property of self - activation. after pgbkt7 - ga was transformed to yeast pj69 - 4a, we transformed arabidopsis vegetative tissue two - hybrid cdna library plasmids to yeast pj69 - 4a containing pgbkt7 - ga
通過pcr擴增得到gpa1基因並將其克隆到雙雜交dna結合域載體pgbkt7中，得到的重組質粒命名為pgbkt7 - g ， ?半乳糖苷酶活性鑒定表明g不具有自激活特性，將其轉化到酵母菌pj69 - 4a中，再以此為受體菌轉化擬南芥綠色營養組織cdna文庫質粒。 -
Mature embryo - derived calli of japonica rice ( oryza sativa l. ) cultivars nipponbare were transformed using agrobacterium tumefaciens strain agl1 carrying a binary vector pcas04 harboring the marker gene, neomycin phosphotransferase gene ( nptii ), driven by a promoter from the ubiquitin gene in maize, a promoterless p - glucuronidase gene near to the left border of t - dna for trapping gene and a strong promoter, rice actin - gb promoter, near to the right border of t - dna as activation tagging. in this system, co - cultivation was simplified, special selection stages and pre - regeneration stage were omitted, the whole process was almost under continuous light at 30 ? except co - cultivation and transgenic plants began to generate only after 7 weeks calli were induced
在一步轉化系統中，光照高溫條件下培養的水稻愈傷組織從誘導開始經過4周時間就可以達到轉化實驗的要求，並且簡化、優化了整個共培養過程，省去了一篩、二篩和預分化步驟，只用7周的時間就可以初步得到再生轉化植株；共191塊愈傷組織得到125塊抗性愈傷組織，轉化頻率達到65 . 4 ，最後共得到99棵獨立來源的再生植株，抗性愈傷組織再生頻率達到79 . 2 。
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