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中国农学通报 ›› 2019, Vol. 35 ›› Issue (5): 12-17.doi: 10.11924/j.issn.1000-6850.casb18090003

所属专题: 生物技术 小麦

• 农学 农业基础科学 • 上一篇    下一篇

人工老化对老芒麦种子活力及醇溶蛋白组成的影响

孙守江, 祁娟, 何丽娟, 吴召林, 金鑫, 陈永岗, 师尚礼   

  1. 甘肃农业大学草业学院
  • 收稿日期:2018-09-02 修回日期:2019-01-08 接受日期:2018-10-24 出版日期:2019-02-13 发布日期:2019-02-13
  • 通讯作者: 祁娟
  • 基金资助:
    国家自然科学基金“老芒麦株龄与细胞凋亡速度对其种群结构及稳定性影响机制”(31660684)。

Artificial Aging Treatment of Elymus sibiricus: Effects on Seed Vigor and Prolamin Constitutes

祁娟, 何丽娟, 吴召林, 金鑫, 陈永岗, 师尚礼   

  • Received:2018-09-02 Revised:2019-01-08 Accepted:2018-10-24 Online:2019-02-13 Published:2019-02-13

摘要: 为揭示人工老化对老芒麦种子活力及醇溶蛋白组成与表达量的影响,以老芒麦(Elymus sibiricus)种子为试验材料,用高温(45℃)、高湿(100% RH)的方法处理种子,对不同老化程度的种子进行发芽实验并计算相应指数,并对酸性聚丙烯酰氨凝胶电泳(A-PAGE)检测醇溶蛋白的体系进行优化。结果表明:人工老化处理7天后,种子的发芽率、发芽势、发芽指数和活力指数依次下降58%、56.34%、75.36%、83%,从凝胶电泳体系优化结果可以看出,最优体系为:300 V电压、上样量为10 μL、18%的聚丙烯酰氨凝胶。老化后的种子ω区醇溶蛋白出现了带型的变化,即原有谱带的丢失、新谱带的出现。由此可以看出种子活力指数对老化处理最为敏感,它的下降与电导率的变化相关性较大,种子活力丧失与原有谱带的丢失、新谱带的出现在同一时间,说明它与ω区域醇溶蛋白的变化有关。

关键词: 野生果树, 野生果树, 抗肿瘤, 活性成分

Abstract: To reveal the effects of artificial aging on seed vigor, and constitutes and expression of prolamin, the Elymus sibiricus seeds were used as the tested materials. The seeds were treated with the method of high temperature (45℃) and high humidity (100% RH). The germination experiment was conducted on the seeds with different artificial aging degrees and the corresponding germination indexes were calculated. The acidacrylamide gel electrophoresis (A- PAGE) detecting prolamin was optimized at the same time. The results showed that the seed germination rate, germination potential, germination index, and vigor index decreased by 58% , 56.34% , 75.36% , and 83% after artificial aging for seven days. According to the results of gel electrophoresis system, the optimal system was determined as 300 V voltage, 10 μL loading volume, and 18% polyacrylamide gel. The band of prolamin in the ω-zones changed after artificial aging, such as the absence of the original bands and the appearance of new bands. Therefore, the seed vigor index is the most sensitive indicator to aging treatment, and the decrease of seed vigor is related to the change of conductivity. And the lose of seed vigor is companied with the absence of the original band and the appearance of new bands, indicating that the seed vigor is related to the changes of ω-prolamin.

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