这个词语来源于拉丁语。'Rhizobium leguminosarum'是一种固氮细菌，它可以与豆科植物共生，帮助植物从空气中吸收氮气，促进它们的生长。在翻译中，中文常使用“根瘤菌”或“根瘤形菌”来表示。
以下是9个含有'Rhizobium leguminosarum'的例句：
1. Rhizobium leguminosarum is an important nitrogen-fixing bacterium that has a symbiotic relationship with legumes.（根瘤菌是一种重要的固氮细菌，与豆科植物共生。）
2. The effectiveness of Rhizobium leguminosarum in fixing atmospheric nitrogen is vital for the sustainable development of agriculture.（根瘤菌固氮的效果对于农业的可持续发展至关重要。）
3. Inoculation of Rhizobium leguminosarum can significantly increase the growth and yield of legume crops.（接种根瘤菌可以显著提高豆科作物的生长和产量。）
4. The optimal temperature for the growth of Rhizobium leguminosarum is between 20°C and 28°C.（根瘤菌生长的最适温度为20℃至28℃。）
5. The genetic diversity of Rhizobium leguminosarum populations in different soils has been studied using molecular techniques.（利用分子技术研究了不同土壤中根瘤菌群体的遗传多样性。）
6. Rhizobium leguminosarum is able to recognize and form a symbiotic relationship with a variety of legume hosts.（根瘤菌能够识别和与多种豆科寄主形成共生关系。）
7. The nitrogen-fixing ability of Rhizobium leguminosarum depends on the presence of specific bacteriophage in the soil.（根瘤菌的固氮能力取决于土壤中特定的噬菌体是否存在。）
8. Different strains of Rhizobium leguminosarum may have different host specificity and symbiotic effectiveness.（不同菌株的根瘤菌可能具有不同的寄主特异性和共生效果。）
9. The root nodules of legumes are formed by the interaction between Rhizobium leguminosarum and plant root cells.（豆科根瘤是根瘤菌和植物根细胞之间的相互作用形成的。）
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