Nodules Notes: Definitions & Explanations PDF | Download eBooks
Study Nodules lecture notes PDF with biology definitions and explanation to study “What are Nodules?”. Study nodules explanation with biology terms to review biology course for online degree programs.
Nodules Definition:
Along a legume's roots are swellings called nodules, composed of plant cells "infected" by Rhizobium ("root living") bacteria.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Nodules Notes:
Many leguminous plants contain symbiotic bacteria called rhizobia within the nodules, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants and this helps to fertilize the soil. The great majority of legumes have this association, but a few genera which do not for example Styphnolobium.
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