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Sainsbury Laboratory

Cross sections of nodules containing nitrogen-fixing bacteria (top panel, dark blue staining) and a spontaneously induced nodule that lacks nitrogen-fixing bacteria.
Alt Text: 
Cross sections of nodules containing nitrogen-fixing bacteria (top panel, dark blue staining) and a spontaneously induced nodule that lacks nitrogen-fixing bacteria.
Title Text: 
Cross sections of nodules containing nitrogen-fixing bacteria (top panel, dark blue staining) and a spontaneously induced nodule that lacks nitrogen-fixing bacteria.