Ubisch bodies are surrounded by sporopollenin or release sporopollenin to make the exine of pollen grain ?

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Global science book.info

Ubisch bodies are secreted by tapetum. It helps in the development of pollen grain. The ubisch body could be said as part of sporopollenin. When viewed under microscope it looks like cysts adhered to the exine wall. You can google for image of ubisch bodies for better understanding

 

 

ubisch bodies are granular bodies secreted by tapetum which form exine layer of pollen grain. they are also called orbicules