Maize vascular tissue. Fluorescence light micrograph of a transverse section through a stem from a maize plant (Zea mays), showing vascular bundles (green). Vascular bundles are structures in vascular plants containing the tissues responsible for transporting water and nutrients. This sample has been stained with berberine and imaged under ultraviolet (UV) light, causing the berberine to fluoresce. Magnification: x140 when printed at 10 centimetres across.
August 5th, 2016
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