Alfalfa Roots and Soil Bacteria (IMAGE)

University of Oregon

Alfalfa Roots and Soil Bacteria

Caption

Alfalfa roots secrete chemical signals into soil to attract and recruit bacteria. These bacteria live in a plant's roots and provide a natural fertilizer source. Pictured is an alfalfa root with root hairs that have attracted rhizobia soil bacteria, which are engineered to appear in green fluorescence for easier visualization.

Credit

Image courtesy of Jennifer E. Fox

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