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Conifer Needle, Sem
Photograph - Photograph
Conifer needle. Coloured scanning electron micrograph (SEM) of a section through a needle (leaf) from a conifer tree, showing the vascular bundle (large round cluster, centre). The vascular bundle consists of xylem (small yellow openings) and phloem (brown, surrounding the xylem) tissues. Xylem transports water and mineral nutrients from the roots throughout the plant and phloem transports carbohydrates and hormones around the plant. Magnification x160 when printed 10 centimetres wide.
May 6th, 2013
Viewed 3 Times - Last Visitor from Beverly Hills, CA on 09/23/2014 at 1:29 AM
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