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通过对白肋烟胞质雄性不育系的同工酶和游离氨基酸分析表明，不育系和保持系过氧化物酶同工酶酶谱和活性在营养器官中基本相同，在生殖器官中表现出明显的差异；不育系幼蕾中酶带数和活性显著增大，盛花却显著变小，保持系则与之相反；不育系花器中严重缺乏游离脯氨酸，而保持系中却大量积累；不育系中游离氨基酸总含量也显著降低，其它氨基酸含量变化也极无规律。
The isozyme and free amino acid analysis of the CMS male-sterile lines showed that the isozyme zymogram and activity of the peroxidase isozymes in maintainer lines and maintainer lines were basically the same in vegetative organs and showed in reproductive organs Significant differences; sterile line young buds in the number of bands and activity was significantly increased, full bloom was significantly smaller, while the maintainer is the opposite; sterile flowers in a serious lack of free proline, while maintaining a large number of lines Accumulated; the total content of free amino acids in sterile lines also significantly reduced, other amino acid content changes are also very irregular.