Archaea

their complexity. Archaea can be found in places all over the world, like hot water pools, areas with high salt concentrations, cold temperature areas, and in areas without oxygen. They can grow in areas that would kill most organisms. It has distinct domains that make them extremophiles, meaning that they can grow in more than one condition. Additionally, prokaryotes include cells that have a nucleus, which makes them eukaryotes. It includes animals, plants, protists, and fungi. Archaea also…

A review of Methanoculleus: a hydrogenotrophic methanogens frequently observed in anaerobic habitats Summary: Keywords: Methanoculleus, hydrogenotrophic pathway, methane production Introduction: Methane is an important greenhouse gas due to its capability of retaining heat and its release from many nature sources, including wetlands, fresh water or sea water sediments, and animal manure, etc. There are two main means of atmospheric methane production, biogenic and abiogenic. Since 70%-80% of…

•Researchers’ question: Do lifestyle and dietary habits change the gut microbiota in obese individuals? •Hypothesis (and possible predictions): Gut microbiota changes along with the body composition in obese individuals during weight loss. The possible prediction is that gut microbiota changes before, during and after losing weight. •Experiment and variables: Obese individuals were subjected to a dietary regimen during 4 months. The experiment consisted in measuring BIA and gut microbiota before…

Clustering was also performed on 1,847 bacteria and 134 archaea containing a total of 6,103,025 sequences. All sequences were clustered via the domain origin. The domain clusters were further organized by a reciprocal best cluster approach (3). The data was plotted out by black tick marks that clearly represented…

found in hot acidic soils. Optimal conditions for S. acidocaldarius included a temperature of 80°C and a hydronium ion concentration, pH, of 2; making them acidophiles (acid loving) and thermophiles (heat loving). (Wikipedia #2). As a member of the Archaea Domain, S. acidocaldarius, has no peptidoglycan within its membrane. As such it cannot be classified as gram positive or gram negative. Nutritionally speaking S. acidocaldarius can grow chemoautotrophically using sulfur to oxidize…

organism that can reproduce inside the cells of an organism. Most viruses are microscopic they are only observable through an optical microscope. Viruses can infect all types of organisms ranging from plant to animals as well as bacteria and other archaea. There are around 5000 different types of viruses described at the current time, however, it is thought that there are millions different viruses of distinct types. Viruses are seen in every ecosystem on planet Earth. The study of viruses is…

The cell wall is only found in plant, bacteria, fungi, algae and other archaea cells. Its main functions are to provide protection and support for the cell. But the cell wall has many other functions as well including intercellular communication, providing shape, they also regulate what gasses can enter each cell. The vacuole hold water in plant cells and the cell wall maintains shape when the vacuole is full. The cell wall also prevents the cell from bursting when the vacuole is fully expanded.…

categorized into two domains: archaea and bacteria. One of the main difference between archaebacteria and eubacteria prokaryotes is that archaebacteria is ancient. Due to the ancientness of archaebacteria, they can survive in extreme environments where most organisms cannot (9). The prokaryotes in these two domains also differ in the structure of their cell wall. Prokaryotes that contain peptidoglycan in their cell wall belong in the domain bacteria while prokaryotes in archaea do not contain…

prokaryotes and eukaryotes, which further diverted in three other domains consists of Bacteria, Archaea and Eukarya , there are major different between these two where prokaryotes are much simpler internal structures, circular DNA, lack nucleus and any membrane bounded organelles and in general smaller in size. Bacteria and Archaea fall into this category, however despite they sharing same characteristics, Archaea are in fact closely relate to Eukarya than Bacteria. The domain bacteria is…

these techniques is the CRISPR or Clustered Regularly Interspaced Short Palindromic Repeats Screens [3], which is originally used as a mechanism of defense by bacteria and archaea against bacteriophage infection. It was first reported as part of the genome of Escherichia coli and, during the next years, other bacteria and archaea were reported to also present the CRISPR cluster. Cas genes were reported to be conserved in these organisms as well. Basically, CRISPR consists of CRISPR-associated…