Question

What is the tapetum? What are the two types of tapetum development and how do they differ?

    What is the tapetum? What are the two types of tapetum development and how do they differ?

Plant Systematics

Plant Systematics

Michael G. Simpson 2nd Edition

Chapter 11, Problem 3

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It is located behind the retina and plays a crucial role in enhancing vision in low light conditions. There are two types of tapetum development: fibrous and cellular. Show more…

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What is the tapetum? What are the two types of tapetum development and how do they differ?

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Key Concepts

Amoeboid Tapetum

The amoeboid tapetum, also known as the invasive type, is characterized by the disintegration of tapetal cell walls, allowing the cellular contents to merge into a syncytium that directly interacts with developing pollen, facilitating a different method of nutrient and material transfer.

Tapetum

The tapetum is a specialized layer of nutritive cells found inside the anther of flowering plants that plays a crucial role in the development of pollen grains by supplying essential nutrients, enzymes, and materials necessary for building the pollen wall.

Secretory Tapetum

In the secretory type of tapetum development, the tapetal cells remain intact and actively secrete enzymes, proteins, and lipids into the locule, which contributes to the nourishment and proper formation of the pollen grain outer layers.

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