Question

What is the function of the Tapetum in the Microsporangium?

Hint:

Tapetum = “Nurse layer of anther”

• Feeds developing pollen
• Helps form pollen wall (sporopollenin)
• Critical for pollen viability

Answer 1

Concept: The tapetum is the innermost layer of the microsporangium (anther) wall and plays a vital role in pollen development.
Function of Tapetum:

• 
  Nourishment of Developing Microspores: Provides essential nutrients and metabolites required for the growth and maturation of pollen grains.
• 
  Formation of Pollen Wall: Secretes sporopollenin precursors that help in the formation of the exine (outer layer) of pollen.
• 
  Production of Enzymes and Proteins: Synthesizes enzymes and proteins that regulate pollen development.
• 
  Secretion of Pollenkitt: Produces sticky substances (pollenkitt) that help pollen adhere to pollinators.

Importance:

• Essential for viable pollen formation
• Abnormal tapetum leads to male sterility