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利用基因枪法向高羊茅导入P5CS基因的研究
Studies on Transferring P5CS Gene into Tall Fescue(Festuca arundinacea Schreb.)via Microprojectile Bombardment
【摘要】 利用基因枪法,以豇豆(Vigna aconitifolia)的Δ1-吡咯啉-5-羧酸合成酶基因(P5CS)的突变型P5CS-F129A基因转化高羊茅的下胚轴愈伤组织,获得25株经PCR检测和Southern b lot分析为阳性的转基因植株,转化频率约为1.4%。脯氨酸含量测定表明,转基因植株的脯氨酸含量比对照高31%~83%。对植株的抗旱性初步检测表明,转基因植株比对照耐旱。
【Abstract】 In this study,a mutated form of Vigna aconitifolia Δ~1-pyrroline-5-carboxylate synthetase(P5CS-F129A) gene was transferred into calli of tall fescue by micro projectile bombardment.Twenty-five transgenic plants were obtained through phosphinothricin screening,PCR and Southern blot analysis.The transformation frequency in calli of tall fescue was about 1.4%.The content of proline in transgenic plants was 31%-83% higher than that in untransformed plants.Furthermore,the transgenic plants were more tolerant to drought stress.
【Key words】 Turfgrass; Tall fescue; Transgenic; Micro projectile bombardment; Drought tolerance;
- 【文献出处】 园艺学报 ,Acta Horticulturae Sinica , 编辑部邮箱 ,2005年04期
- 【分类号】S688.4
- 【被引频次】44
- 【下载频次】268