【摘要】 为了解沙棘根瘤的固氮能力 ,对其进行了形态结构和解剖结构的研究。结果表明 :沙棘 (Hippophaerhamnoides)的根系发达 ,具有很强的分蘖能力 ,而且能和放线菌中的弗兰克氏菌 (Frankia)共生 ,形成根瘤。对根瘤生长、发育及形成的泡囊进行了研究 ,明确了根瘤的寄生部位和泡囊的固氮情况 ,并深入研究了Frankia菌的分离培养以及根瘤的侵染过程更多还原

【Abstract】 Hippophae rhamnoides has fully developed root system and strong tillering ability The root of Hippophae rhamnoides accretes with Frankia , forming root nodule. The autoecious position of root nodule and nitrogen fixation activity were known based on the observation of growth and development of root nodule and formation of vesicle. The results of this study provides some useful information for the separation and cultivation of Frankia and its autoecious relation with root.更多还原