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适合番茄叶肉原生质体培养的材料是3~4周龄无菌苗顶端开展的叶片,在27℃下,采用10g/L纤维素酶“Onozaka”R-10、5g/L果胶酶Pectinase、5mmol/LMES、90g/L甘露糖醇、CPW盐的酶液游离撕去下表皮的嫩叶,14~16h,效果最好。研究表明,“红玫瑰”番茄和L.esc.×(L.esc.×S.ly.,F1),BC1F1的酶解效果最好,原生质体的产量和活力都最高;秘鲁番茄和L.esc.×S.ly.,F1次之;而潘那利番茄酶解效果最差,产量依次为:483×106、455×106、437×105、212×105和303×104个/g。试验中,对多种培养基及培养方法进行对比研究,结果表明,D2培养基液体浅层法培养效果最好,TM-2液体浅层培养和M8E琼脂包埋漂浮法次之。在所采用的5种试材中,从“红玫瑰”番茄和L.esc.×(L.esc.×S.ly.,F1),BC1F1的叶肉原生质体获得了愈伤组织。
The material suitable for protoplast culture of tomato mesophyll was the top of the leaves of 3 to 4 weeks old sterile seedlings. At 27 ℃, 10 g / L cellulase “Onozaka” R-10, 5 g / L pectinase Pectinase, / LMES, 90g / L of mannitol, CPW salt of the enzyme solution to remove the lower epidermal leaves, 14 ~ 16h, the best. Research shows that “red rose” tomatoes and L. esc. × (L.esc. × S.ly., F1). BC1F1 had the best enzymolysis effect and the highest protoplast yield and vigor. esc. × S. ly. , Followed by F1; Panzhihua tomato hydrolyzate the worst, the yield as follows: 4 83 × 106,4 55 × 106,4 37 × 105,2 12 × 105 and 3 × 103 × 104 / G. In the experiment, a comparative study on various media and culture methods was carried out. The results showed that liquid culture of D2 medium was the best, and TM-2 liquid shallow culture followed by M8E agar embedding and floating method. Among the five kinds of test materials used, “Red Rose” tomato and L. esc. × (L.esc. × S.ly., F1). Callus was obtained from mesophyll protoplasts of BC1F1.