O V Chuhukova, B N Postrigan, A Kh Baimiev, A V Chemeris
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引用次数: 0
Abstract
Screening of nodule bacteria (rhizobia) forming symbiotic relationships with legumes has been performed in order to isolate strains resistant to cadmium ions in a wide range of concentrations (6-132 mg/kg). The effect ofcadmium salts (6, 12, 24 mg/kg) on the legume-rhizobium symbiosis ofthe pea Pisum sativum L. with Rhizobium leguminosarum and of the fodder galega Galega orientalis Lam. with Rhizobium galegae has been studied under experimental laboratory conditions. No statistically significant differences have been revealed in the growth and biomass of plants with regard to the control in the range of concentrations given above. However, it was found that cadmium inhibited nodulation in P. sativum and stimulated it in G. orientalis.
为了分离出对多种浓度（6-132 毫克/千克）镉离子具有抗性的菌株，对与豆科植物形成共生关系的结核菌（根瘤菌）进行了筛选。在实验室实验条件下，研究了镉盐（6、12、24 毫克/千克）对豌豆（Pisum sativum L.）与豆科根瘤菌（Rhizobium leguminosarum）共生关系以及饲料稗（Galega orientalis Lam.）与稗根瘤菌（Rhizobium galegae）共生关系的影响。在上述浓度范围内，与对照组相比，植物的生长和生物量在统计学上没有明显差异。不过，研究发现，镉抑制了 P. sativum 的结瘤，而刺激了 G. orientalis 的结瘤。
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