种群1是中华根瘤菌属。
根瘤菌的主要侵入点是植物的根须。
The primary invasion site of Rhizobium is the root hair of the plant.
根瘤菌是生物固氮的能手。
Nodule bacteria are very good at biological nitrogen fixation.
根瘤菌结瘤基因表达后诱导产生结瘤因子。
Nodulation factors are induced when nodulation genes of Rhizobium are expressed.
豆类被根瘤菌和博斯特属菌感染的过程分为几步。
The infection process of legumes by rhizobium and Bradyrhizobium species consist of several stages.
豆科植物凝集素在对根瘤菌的识别中起重要作用。
The leguminous lectin played an important role in the recognition of Rhizobia.
说明根瘤菌对有些结瘤豆科树种的根毛具有诱导作用。
All the things showed that the rhizobia could induce the root hairs on the lateral roots of some legume species.
由此可见，根瘤中多磷酸盐的积累与根瘤菌的生长发育有关。
Thus it can be seen that polyphosphate accumulate is relation ship with rhizobial growth and development.
然而，我国南方酸性土壤分布广、面积大，耐酸苜蓿根瘤菌资源缺乏。
However, there's a lot of acid soil in South of China, and acid-tolerant rhizobia are in short.
实践证明，选择根瘤菌株与花生品种组合发挥了根瘤菌剂的增产效果。
It has been shown that the combination of the selections of Rhizobium strains and peanut varieties is of vital importance.
豆科植物的根际比非豆科植物的根际或离根土壤更能刺激根瘤菌的生长。
Legume rhizospheres stimulate more growth of rhizobia than do the rhizospheres of non legumes or soil apart from the roots.
然而，只有在细菌（根瘤菌）达到一定数量时引发群体感应机制才能进行固氮。
However, bacteria fix the gas only when their population is high enough to trigger the quorum-sensing machinery.
接种根瘤菌尽管能使大邑黑豆结瘤增加，但是大豆植株的氮含量却有轻微下降。
Even though the inoculation with Rhizobium could increase the nodulation of Dayiheidou, the nitrogen content of the soybean seedlings dropped slightly.
此项研究为大豆根瘤菌剂的田间应用和大豆遗传育种提供了科学依据和实验材料。
This study will contribute to better discovering and using natural resources of soybean rhizobium and genetic breeding of soybean.
相比之下YMA配制方便，质量也易于控制，是工业生产根瘤菌剂的合适培养基。
In comparison, YMA was easy to prepare and easy to control its quality, so that it was the best medium for industry production of rhizobium inoculants.
不同菌根菌的混合接种及菌根菌与根瘤菌的混合接种在多数情况下均比单接种效果好。
The effect of multiple inoculation with different mycorrhizal fungi and Rhizobium is better than single microorganism material inoculation at most circumstances.
在盆栽条件下比较研究了转基因重组根瘤菌与出发菌和参照菌的结瘤与共生固氮效率。
Plant pot experiments were carried out for the recipient strains and their transconjugants to compare their nodulation ability and symbiotic nitrogen fixation efficiency.
试验表明，根瘤菌侵入油菜根细胞，且形成含根瘤茵的根瘤，结瘤率为31.25％。
The glasshouse experiment results showed that the pectin-lytic bacterium helped rhizobia to enter the root and formed nodules on them (31.25%) .
既然慢生根瘤菌也会生成根瘤从而建立共生关系，它们一定使用了不同的信号分子来实现这个目的。
Since the Bradyrhizobium strains still form nodules to establish symbiosis, they must be using different signalling molecules to do so.
结果表明：根瘤菌可诱发根瘤形成部位根段的根毛增生、形变和根外层传递细胞的发育。
The results showed that the hyperplasy of root hair, root deformation and the development of the root epidermal transfer cells were induced by rhizobia.
结瘤基因的系统发育揭示出根瘤菌宿主范围与共同性结瘤基因间比其它基荫的相关性更高。
The phylogenetic studies on nod genes have promulgated that the host range of rhizobia appeared to have a higher interrelationship to the common nod genes than other genes.
对发根接种豌豆根瘤菌、菜豆根瘤菌，结果只有接种豌豆根瘤菌的发根出现瘤状物的结构。
After inoculation of the two strains of Rhizobium legiiminosarum bv. viciae and hv. phaseoli , only the former could make nodule-like structures on the tobacco hairy roots.
结瘤因子是由根瘤菌产生的一类信号分子，它们在结瘤的起始阶段发挥着十分重要的作用。
Nod factors are a novel general class of signal molecules produced by rhizobia, which play a key function in the initial steps of nodulation.
显微镜观察表明在烟草发根的维管束中柱鞘细胞、水稻根皮层细胞内和细胞间隙有根瘤菌存在。
The observation under microscope showed that the rhizobia were present in percycle cells of vascular system of the tobacco hairy roots and in cortex cells and intercellular spaces of rice roots.
显微镜观察表明在烟草发根的维管束中柱鞘细胞、水稻根皮层细胞内和细胞间隙有根瘤菌存在。
The observation under microscope showed that the rhizobia were present in percycle cells of vascular system of the tobacco hairy roots and in cortex cells and intercellular spaces of rice roots.
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