protonema Definition
- 1the filamentous or thalloid structure that is produced by the germination of a spore in mosses and liverworts, and from which the adult gametophyte develops
- 2a primary stage in the development of certain algae and fungi
Using protonema: Examples
Take a moment to familiarize yourself with how "protonema" can be used in various situations through the following examples!
Example
The protonema is the first stage of the moss life cycle.
Example
The protonema of the fern is a small, green, heart-shaped structure.
Example
The protonema of the fungus grows into a mycelium.
Origins of protonema
from Greek 'protos', meaning 'first', and 'nema', meaning 'thread'
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Summary: protonema in Brief
A 'protonema' [proh-tuh-nee-muh] is a filamentous or thalloid structure that develops from a spore in mosses and liverworts, and from which the adult gametophyte grows. It is also a primary stage in the development of certain algae and fungi. Examples include the protonema of the moss, fern, and fungus.
