Sorus
(Redirected from Indusia)
Sorus (plural sori) is a cluster of sporangia (structures producing and containing spores) in ferns and fungi. This term is derived from the Greek word σωρός (sōrós), meaning "heap" or "pile".
Morphology[edit | edit source]
In ferns, sori are usually born on the underside of the frond, but they can also appear along the margin or on the top side. They are often protected by a scale or a cover called an indusium, which can be a part of the frond itself or a separate structure.
In fungi, the term "sorus" is used to refer to a cluster of spore-producing structures called basidia or asci.
Function[edit | edit source]
The primary function of a sorus is to produce and store spores, which are a key part of the reproductive process in ferns and fungi. When the spores are mature, they are released into the environment where they can germinate and grow into a new organism.
Types of Sori[edit | edit source]
There are several types of sori, including:
- Acrostichoid sori: These sori cover the entire underside of the frond.
- Costal sori: These sori are found along the midrib of the frond.
- Marginal sori: These sori are found along the edge of the frond.
- Peltate sori: These sori are shield-shaped and have an indusium.
See also[edit | edit source]
References[edit | edit source]
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