MSC 2009/10 ZENONAS CHRISTOPHOROU
MSc 2009/10 Zenonas Christophorou
Pollen Morphology, Development, structure, pollination and germination
You are now observation a print combined by Zenonas Christophorou
Zenonas Christophorou, a MSc tyro from 2009/10 worked on this poster and combined for his Research print choice in division one of his MSc in Biological Photography and Imaging, at The School of Biology, The University of Nottingham. Below is extracts from the print along with a slip uncover of his images prior to and after colour addition.
Pollen
Pollen is a powdery piece consisting of pollen grains, the containers of the masculine gametes of the sporophytes (seed plants)1,2.
Pollen morphology
In conditions of length, grains operation from 2-5 μm to about 250 μm. In conditions of shape, in all angiosperm pollen is more non-static than that of gymnosperm pollen3,5. The infancy have an elliptical or round figure nonetheless other graphic shapes also exist. Ashes for example (Fraxinus spp.) furnish block made pollen5. Apart from size and shape, other specifying facilities of pollen are pores and furrows5. These are found on the sexine, the outdoor covering of the exine. Grains with pores are called porate (monoporate, diporate, triporate and periporate depending on the number of pores). These pores give the pollen a triangular, square, or polygonal figure (depending on the number of pores) since they action as points on the aspect where the exine angles5. Grains with furrows are well known as coplate and follow the same fixing manners as the porates. Furrows can be very long and widen from stick to stick or quite reduced and not very obvious. Grains possessing both pores and furrows are
