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Home > All Images > 2001 > September > 26 Sep 2001

Images Dated 26th September 2001

Choose from 18 pictures in our Images Dated 26th September 2001 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Pollen grains, SEM Featured 26 Sep 2001 Image

Pollen grains, SEM

Pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains (purple) from an unidentified plant. There is great variation in the size, shape and surface texture of pollen. The outer wall (exine) is highly sculpted in many plants, as seen here, which may assist in dispersal. The characteristic surface of a plant's pollen grains is used by botanists to recognise and classify species. Each pollen grain contains a male gamete, which fertilises the eggs or ovules, initiating the formation of plant seeds. Magnification unknown