Journal of Plant Biology
- 제38권4호
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- Pages.365-371
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- 1995
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- 1226-9239(pISSN)
Agrobactrium tumefaciens KU12로부터 분리한 pli12의 Replication Origin과 벼의 Actin 유전자 프로모터를 이용한 벼의 Binary Vector 제조
Construction of Binary Vectors for the Rice Transformation Using a Rice Actin Promoter and Replication Origin of pTi12 Isolated from Agrobacterium tumefaciens KU12
초록
Binary vectors, pBI-ActR1, pBI-ActF1 and pBSH-ActR1, were constructed using pGA642, the replication origin of pTi12 and the rice actin promoter. The sizes of pBI-ActR1, pBI-ActF1 and pBSH-ActR1 were 12.9 kb, 13.2 kb and 11.95 kb, respectively. These vectors containing a rice actin promoter followed by a GUS structural gene could induce stronly the expression of GUS gene in transformed rice cells. Rice explants from 3-4 day old seedlings after germinatin were cocultured with A. tumefaceins harboring pBI-ActR1, pBI-ActF1 or pBSH-ActR1, and then GUS expression in the explants was assayed. Transformation of rice explants by these binary vectors was tissue-specific, such that the meristematic regions of shoot apex, root and hypocotyl were transformed by these binary vectors.