用激素处理根系后,固氮根瘤菌可侵进且形成假瘤(Pseudonodules)或称类根瘤(Paranodules),并发现侵染的细胞中布满根瘤菌,所不同的是这些细胞似乎已死亡,也未观察到进进根内部的菌体四周有膜的形成。
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根瘤菌类群 Dominant rhizobium type
Concentration of calcium ion changed with the development of paranudule, expression of nitrogen fixation-genes, and hoist of nitrogenase activity.
根瘤菌的Ca2+水平则随着类根瘤的发育、固氮基因的表达及固氮酶活性的升高相应的升高。
参考来源 - 烟草根瘤化对其细胞结构和钙的影响·2,447,543篇论文数据,部分数据来源于NoteExpress
类根瘤由表皮细胞、皮层细胞和分生细胞组成。
The para-nodule was composed of epidermis cells, cortex cells and meristematic cells.
放线菌根瘤植物是自然界中一类重要的固氮资源,作为先锋树种和伴生树种在造林中有重要的应用价值。
Actinorhizal Plants are a kind of important natural nitrogen-fixing resources, and they have high value in reforestation as pioneer and accompanying species.
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.
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