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Transgenic Plant Lab.

ACADEMIA SINICA

ACADEMIA SINICA





水稻轉殖



以農桿菌為媒介之水稻轉殖:由成熟種子誘導癒傷組織進



行農桿菌感染



Agrobacterium-mediated transformation of rice(TN67)

with embryogenic callus induced from mature seeds



1. 挑取飽滿的成熟種子,去殼。



2. 以 2﹪ NaOCl + 2~3 drops Tween-20 消毒種子十五分鐘



3. 以無菌水清洗至少五次。



4. 將消毒過的種子播在 NB media 中,26℃黑暗培養 18-21 天。



5. 取介於 explants 及 media 之間的 embryonic units 移至新鮮的

NB media 中,26℃黑暗培養 10-15 天。



6. 感染前兩天,挑取 Agrobacterium single colony,28℃下養成 5mL

YEP broth(含適當抗生素)。



, 。

7. 隔天 將菌養在含 100μM acetosyringone 及適當抗生素之 YEP 50 ml



8. 以 CCL media 調整 Agrobacterium 菌液濃度至 OD600=1。





9. 取 50-100 個 embryogenic nodular units 浸在 25ml 菌液中

10-15min。

1

10.以滅過菌的紙巾吸乾,置於 CCS media 中,10units/plate, 26℃







黑暗培養 3 天。





11.移至含抗生素的 R2S media ,5-7 units/plate, 26℃黑暗培養 14

天。





12.此時 callus 轉成深棕色,表面有棕色透明小突起。







13.將 callus 移到 NBS media 7 天後長出棕色球狀物 將之舖在 media

上,再養 10-15 天。





14.長成球狀圓形結實不透明的黃色 calli 後,移至 PRAG media 26℃

黑暗培養 7 天。





15.長出乳白色分裂狀 callus ,表面光滑乾燥,移至 RN media ,4-5

units/plate,26℃黑暗培養 2 天。





16.維持在 RN media 中,移到 26℃,光週期 16hr,培養 3 週。





17.切下 shoot,移至 P media 26℃,光週期 16hr,培養約 3 週即發根。



參考文獻



C. Sallaud, et al. (2003)Highly efficient production and characterization of

T-DNA plants for rice(Oryza sativa L.)functional genomics. Theor. Appl.

Genet. 106:1396-1408



培養基配方:





NB basic N6 major salts and iron source + B5 minor salts and vitamins + 30g/L

sucrose



2

NB:NB basic + 2 mg/L 2,4-D + 500 mg/L proline + 500 mg/L glutamine + 300

mg/L casein hydrolysate (pH5.8)+ 2.6 g/L phytagel



R2 basic:R2 major and minor salts,vitamins and iron source(Ohira et al.

1973)+2.5 mg/L 2,4-D









CCL:R2 basic + 10g/L glucose(pH5.2)+ 100 μM acetosyringone



CCS:CCL + 7 g/L agarose



R2S:R2 basic + 30 g/L sucrose(pH6.0)+ 400 mg/L cefotaxime + 其他篩選

用抗生素 + 7 g/L agarose



NBS:NB basic + 2.5 mg/L 2,4-D + 500 mg/L proline + 500 mg/L glutamine +

300 mg/L casein hydrolysate (pH6.0)+ 400 mg/L cefotaxime + 其他

篩選用抗生素 + 7 g/L agarose



PRAG:NB basic + 2 mg/L BA + 1 mg/L NAA + 5 mg/L ABA + 500 mg/L

proline + 500 mg/L glutamine + 300 mg/L casein hydrolysate (pH6.0)

+ 400 mg/L cefotaxime + 其他篩選用抗生素 + 7 g/L agarose



RN:NB basic + 3 mg/L BA + 0.5 mg/L NAA + 篩選用抗生素(pH5.8)+

4.5g/L phytagel



P:MS salts,vitamins and iron source + 50 g/L sucrose(pH5.8)+ 2.6 g/L

phytagel









3



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