论文部分内容阅读
以小麦幼穗、幼胚为原始材料,进行耐盐突变体的筛选,并对其愈伤组织及再生植株后代进行耐盐稳定性的生理生化分析.结果表明:(1)耐盐系在高盐浓度下其鲜重、干重明显高于对照系;(2)耐盐系保持较高的K+ /Na+ 比;(3)对照系种子有11 条醇溶蛋白电泳带,而耐盐系为14 条,与对照系相比B2、B3、B4 带为耐盐所特有,B1 带含量高于对照物,但B5 带含量低于对照系;(4)耐盐系再生植株后代可溶蛋白电泳带为28 条,而对照系为26 条蛋白带,98 kD、75 kD、52 kD、49 kD、32 kD为耐盐系所特有蛋白带,38 kD、35 kD和21 kD蛋白带为对照系所特有.并对小麦耐盐突变体筛选相关问题进行讨论.
Salt-tolerant mutants were screened from young ears and young embryos of wheat. Physiological and biochemical analyzes of salt-tolerant stability of callus and regenerated plants were carried out. The results showed that: (1) The fresh weight and dry weight of salt-tolerant lines at high salt concentration were significantly higher than those of the control lines; (2) the salt-tolerant lines maintained high K + / Na + ratios; (3) Gliadin electrophoresis bands, and salt-tolerant lines 14, compared with the control line B2, B3, B4 with salt-specific, B1 with higher content than the control, but B5 with a lower content than the control line; (4 ) 28 lines of soluble protein electrophoresis bands were found in the progenies of salt-tolerant regenerated plants, while 26 lines of protein bands of 98 kD, 75 kD, 52 kD, 49 kD and 32 kD were the special protein bands of salt-tolerant lines, 38 kD , 35 kD and 21 kD protein bands are characteristic of the control line. The problems related to salt tolerance mutant of wheat were discussed.