Classification of Archaebacteria

On the basis of phylogenetic relationships, Archaebacteria is divided into 5 divisions which are as follows:

Crenarchaeota

The bacteria which can survive in a wide range of habitats is known as crenarchaeota. They can also survive in extremely high temperatures. To survive extremely high temperatures, there is a need for many special proteins which are present in these bacteria. These bacteria also survive in highly acidic environments.

The usual habitat of these bacteria is hot springs, deep-sea vents, and places where there is super-heated water All the hyperthermophiles, thermoacidophiles, and thermophiles are included in this category of Archaebacteria.

Euryarchaeota

This category is specialized in surviving extreme alkaline conditions. The only bacteria to perform cellular respiration using carbon as an electron receptor is Euryarchaeota. There are only very few bacteria that can produce methane, and those bacteria fall under this category of Archaebacteria. Methanogens and halophiles are included under euryarchaeota.

Korarchaeota

The common factors of crenarchaeota, euryarchaeota, and korarchaeota are their genes. Common ancestors are present in all three categories. Hyperthermophiles are included under this subcategory as they have the ability to survive extra extremely high temperatures and these bacteria are believed to be the oldest existing bacteria on the earth.

Thaumarchaeota

The bacteria which have the ability to oxidize ammonia are kept under this category.

Nanoarchaeota

Ignicoccus is the genus to which these bacteria belong. These are the obligate symbiont of archaea.

Archaebacteria

Archaebacteria is a group of microorganisms that are distinct from bacteria and eukaryotes. They thrive in extreme environments, such as hot springs, salt lakes, and deep-sea hydrothermal vents. Studying the Archaebacteria characteristics and Archaebacteria classification helps in their unique adaptations to extreme environments and their evolutionary relationships with other life forms.

In this article, we will cover Archaebacteria in detail.

Table of Content

Kingom Monera
Archaebacteria Meaning
Archaebacteria Characteristics
Classification of Archaebacteria
Archaebacteria Habitat
Archaebacteria Reproduction
Importance of Archaebacteria
Archaebacteria Examples