Unilocular and plurilocular sporangia are reproductive structures that are commonly found in algae. Unilocular sporangia consists of one cell and gives rise to haploid spores, whereas plurilocular sporangia consists of a number of cells that gives rise to diploid spores.
Let us explore their differences.
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It is a single enlarged cell which divides to give rise to haploid spores. |
It consists of a number of cells which divide to give rise to diploid spores. |
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They are confined to diploid plants. |
They are borne on both diploid and haploid plants. |
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Found mostly at colder temperatures. |
Found mostly at warmer temperatures. |
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It is a globular, stalked, pear or oval shaped structure with dense cytoplasm and diploid nucleus. |
They are elongate, cone-like structures, made up of a number of cuboidal cells or compartments arranged in vertical rows. |
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It undergoes meiosis to produce haploid spores. |
It undergoes mitosis to produce diploid spores. |
Examples
- Ectocarpus: both the uni- and plurilocular sporangia are borne on the same individual
- Cladostephus: uni- and plurilocular sporangia are borne on different individuals.
- Halopteris: only unilocular sporangia found
- Fucales: unilocular sporangia absent
Visit BYJU’S Biology to learn more.
Also see:
- Information and Interesting Facts About Algae and its types
- What Is The Economic Importance of Algae?
- What Is An Algae bloom?
Frequently Asked Questions
What is plurilocular gametangia?
What is the importance of plurilocular sporangia?
Plurilocular sporangia produces spores which give rise to sporophytes.
What is the function of zoospores produced from plurilocular sporangia in Ectocarpus?
The zoospores give rise to a diploid plant on germination.
What is clump formation in Ectocarpus?
The male gametes cling to the female gametes forming a cluster. This is the clump formation in Ectocarpus.
Are sporangia present in the branches?
Yes, the sporangia are borne on the branches.
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