Biology
Study Material

Reproduction in Algae- Types, Definitions, Examples

Reproduction is crucial to the continuation of life. All living organism perform reproduction to increase there population. In this blog, we will learn about types of algae and what specific method they use for reproduction.

4 minutes long
Posted by Kunduz Tutor, 20/10/2021
Reproduction in Algae- Types, Definitions, Examples

Hesap Oluştur

Got stuck on homework? Get your step-by-step solutions from real tutors in minutes! 24/7. Unlimited.

TRY FOR FREE

 

As we know, there is huge diversity on Earth. Each and every group of organisms reproduce, for the stabilization of their population. In this article, we will learn about reproduction, how it takes place in algae, especially. Moreover, we will learn the examples of different classes of algae and how they reproduce.

Author – Parisa Gupta

What is reproduction?

“Reproduction is defined as the biological process by which organisms are able to produces the copies of themselves in the form of young ones or offspring.

Reproduction is crucial to the continuation of life. It is essential for all the living organisms which are present on earth. For instance, the smallest to the largest organism reproduce so that their population could be able to survive. Let us learn about it more.

Reproduction in algae

In Algae, there are three methods of reproduction namely vegetative method, asexual method, and sexual method. Let us learn more about it one by one.

Vegetative Reproduction in Algae:

The vegetative method of reproduction is processed by the body parts which give rise to the new part like fragmentation where each fragment develops into a new thallus.

Asexual Reproduction in Algae:

Asexual reproduction is by the production of flagellate zoospores which give rise to the new plant after germination.

Sexual Reproduction in Algae:

Sexual reproduction leads to the production of two types of gametes male gamete and female gamete and the fusion of these two gametes takes place in this type of reproduction.

Furthermore, female gamete in the algae is large and non-motile while male gametes are small and motile.

In addition, gametes are isogamous or anisogamous depending on the size. If the gametes are similar in size they are termed as isogamous and if they are different in size then they are termed as anisogamous

Classification of Algae and their Type of Reproduction

There are three main classes of algae on the basis of pigments present in the different classes of algae:

  1. Chlorophyceae (green algae)
  2. Phaeophyceae (brown algae)
  3. Rhodophyceae (red algae) 

You must note, in all the classes of algae, vegetative reproduction takes place only by fragmentation.

Reproduction in Chlorophyceae

In green algae (Chlorophyceae), asexual reproduction is by zoospores and sexual can be isogamous, anisogamous, or oogamous depending upon the species. The gametes can be flagellated and similar in size as found in Chlamydomonas. Moreover, non-flagellated and similar as found in Spirogyra.

For example, Chlamydomonas, Spirogyra, Ulothrix, Volvox, and Chara.

Ulva, green algae
Ulva commonly known as Sea Lettuce is a green algae.

Reproduction in Phaeophyceae

In brown algae (Phaeophyceae), asexual reproduction might take place by biflagellated zoospores and sexual reproduction can be isogamous, anisogamous, or oogamous depending upon the species. The gametes are pyriform, and the union of gametes takes place in water within the oogonium. The fusion of large non-motile female gamete with small and motile male gamete is termed oogamous and it is commonly found in Volvox, Fucus.

For example, Dictyota, Ectocarpus, Laminaria, Sargassum, and Fucus.

phaeophyta example
An example of Phaeophyta or brown algae.

Reproduction in Rhodophyceae

In red algae (Rhodophyceae), asexual reproduction occurs by non-motile spores and sexual reproduction occurs by non-motile gametes. Reproduction is oogamous.

For example, Polysiphonia, Porphyra, Gracilaria, and Gelidium.

An example of Rhodophyta or red algae.

Picked For You

  1. Nitrogen Cycle- Definition, Steps, Reactions, Significance
  2. Transpiration in plants – Definition, Types, Stomatal Movements, Factors affecting, Advantages
  3. Xylem vs Phloem- Definition, difference, structure and function
  4. Human Genome Project – History, Goals, Methodologies, Features, Applications
  5. Biodiversity – Notes, Definition, Types, Examples, Significance, Species Richness, Biodiversity Loss and Causes

To get an instant solution to your doubts, download the Kunduz App for free!

Fastest homework help from expert tutors

Got stuck on homework? Get your step-by-step solutions from real tutors in minutes! 24/7. Unlimited.

TRY FOR FREE