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花生根瘤菌的生长特性和脂肪酸组成研究

, PP. 44-48

Keywords: 花生,根瘤菌,脂肪酸,系统发育

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Abstract:

用73株慢生根瘤菌b.japonicum、b.elkanii和b."intermedium"为对照.对22株花生根瘤菌的生长速度、产碱能力和细胞脂肪酸组成进行了测定.结果表明:花生根瘤菌属于慢生根瘤菌属(bradyrhizobiumsp.arachis);除花生根瘤菌含有比大豆根瘤菌(b.japonicum)较高的脂肪酸16:1w5c(16个碳原子1个双键的脂肪酸)而外,花生根瘤菌与大豆根疚菌相似,表明了他们在系统发育及进化方向上的一致性.细胞脂肪酸分析法是根瘤菌系统发育研究中一种简便而可信的方法.

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