Wednesday, February 15, 2012

Pollen grain??

I need to find some photos of pollen grains in flowering plants. I've so far not been able to find any =[



Any help would be much appreciated x

Pollen grain??
Kindly click on the links below . You will see a number of thumbnail pictures . Click on them one by one to enlarge =



http://images.search.yahoo.com/search/im...



http://images.google.co.in/images?hl=en%26amp;...
Reply:The pollen grain is the structure used to transport the male gamete (i.e. male DNA) to the female part of a flower. Pollen must be strong to protect the male gametes on their journey. The outer wall of the pollen grain, called the exine, is composed of a very unusual substance called sporopollenin which is very tough. The inner layer is made of cellulose and is similar in construction to an ordinary plant cell wall. Pollen grains are microscopic - usually about 15 to 100 microns - and just a pinch of pollen powder contains thousands and thousands of grains.

i have some photo but i dont know how to send it

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