You are weeding your garden when you accidentally expose some roots of your pea plants.You notice swellings (root nodules)on the roots,and there is a reddish tinge to the ones you accidentally damaged.Most likely your pea plants

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The presence of root nodules on the pea plants suggests that they are benefiting from a mutualistic bacterium, most likely Rhizobium. These bacteria have a symbiotic relationship with legume plants (such as peas) in which they colonize the roots and convert atmospheric nitrogen into a form that the plant can use for growth. The reddish tinge on the damaged nodules is likely due to the presence of leghemoglobin, a protein that helps the plant regulate the oxygen levels in the root nodules.

You Are Weeding Your Garden When You Accidentally Expose Some