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RootNodule80929 33kX
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RootNodule#80929 3.3kX

March 21, 2013
Transmission electron microscope image of a cross section though a soybean(Glycine max.Essex) root nodule. The bacteria, Bradyrhyzobium japonicum, infects the roots and establishes a nitrogen fixing symbiosis. Image shows several cells with single and multiple bacteriods within their symbiosomes. A typical infection thread is shown near the center of the image. For more information, see the articles:"Bacterium release into host cells of nitrogen-fixing soybean nodules", Roth, E. and G. Stacey, E.J.C.B. Vol. 49 pp.13-23 1989. and "Phenotypic charaterization of the nolA gene of Bradyrhyzobium japonicum", Garcia, M. etal, MPMI Vol.9 #7 pp.625-635 1996. JEOL TEM 100CX Botanical, TEM, root nodule, bacteria, Rhizobia Credit: Louisa Howard


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