Optimization Of Agrobacterium Tumefaciens-Mediated Transformation S.ystems In Tea Plant ( Camellia Sinensis (L.) O. Kuntze)
文献类型: 外文期刊
作者: Chen, X.;Chen, C. S.;Li, X. H.;Lv, Q. R.;Wang, L.;Xu, Y. J.;Sun, K.;Hu, S. K.
作者机构:
关键词: Camellia sinensis; cotyledon callus; Agrobacterium tumefaciens; GUS transient expression
期刊名称: II ASIAN HORTICULTURAL CONGRESS
ISSN: 0567-7572
年卷期: 2018 年 1208 卷
页码:
摘要: The cotyledon callus of Camellia sinensis were used as the receptors for transformation by Agrobacterium tumefaciens EHA105 containing PS1aG-3. Some factors which affected the result of Agrobacterium-mediated transformation of C. sinensis were studied on the basis of GUS transient expression system. The optimum system of Agrobacterium-mediated transformation was that the cotyledon callus were pre-cultured for 3 d, and then infected for 15 min by EHA105 followed by 3 d co-culture in the dark on the YEB medium containing 150 mu mol L-1 AS. The transient expression rate of GUS gene was 62.6%. An appropriate time of delayed selective culture could improve the conversion rate of the tea callus. After delaying the selective culture for 3 d, infected callus were transferred into the differentiation medium and the root induction medium, both of which were supplemented with 100 mg L-1 Spectinomycin, in the end resistant seedlings of C. sinensis were obtained. The conversion rate was about 3.6%.
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