Auxin producing area of a plant

Auxin is a plant hormone found in the stem tip. This hormone can cause leaf production as well as cause exhibition of phototropism. On a cellular level, auxin is necessary for cell growth. It affects both cell division and cellular expansion and contributes to cell differentiation and specifies the fate of the cell ie) whether the cell should die or continue to grow. Auxin also induces the formation of xylem and phloem.

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