The Kingdom Prokaryotae, also known as the Kingdom Prokarya, is a taxonomic category that includes all prokaryotes, or organisms that do not have a nucleus or other membrane-bound organelles within their cells. Prokaryotes are some of the oldest and most diverse organisms on Earth, and they play critical roles in a variety of ecological processes. In this essay, we will explore some examples of prokaryotes from the Kingdom Prokaryotae and discuss their characteristics and importance in the natural world.
One well-known example of a prokaryote is Escherichia coli, or E. coli, a type of bacteria that is commonly found in the human gastrointestinal tract. E. coli is a gram-negative bacteria, meaning that it has a thin outer cell wall that is resistant to certain types of antibiotics. E. coli is an important model organism in scientific research, as it is relatively simple to grow and manipulate in the laboratory, and it has a relatively small genome. E. coli has been used to study a wide range of biological processes, including DNA replication, gene expression, and protein synthesis.
Another example of a prokaryote is Bacillus subtilis, a gram-positive bacteria that is commonly found in soil and water. B. subtilis is known for its ability to produce endospores, which are highly resistant structures that allow the bacteria to survive in extreme conditions. Endospores are formed when the bacteria are subjected to unfavorable conditions, such as high heat or lack of nutrients. The endospores can then germinate and produce new bacteria when the conditions become more favorable. B. subtilis is used as a model organism in the study of endospore formation and other processes related to bacterial survival.
Prokaryotes are also important in the nitrogen cycle, which is the process by which nitrogen is converted from the atmosphere and transformed into forms that can be used by plants and animals. Nitrogen-fixing bacteria, such as Rhizobia and Azotobacter, are responsible for converting atmospheric nitrogen into a form that can be taken up by plants. These bacteria live in symbiotic relationships with plants, and they are important for the health and growth of many agricultural crops.
Prokaryotes are also involved in the decomposition of organic matter, which is essential for the recycling of nutrients in ecosystems. Decomposer bacteria, such as Pseudomonas and Streptomyces, break down dead plant and animal material and release the nutrients back into the soil. Without these bacteria, dead matter would accumulate and the cycling of nutrients would be disrupted.
In conclusion, the Kingdom Prokaryotae is a diverse group of organisms that includes bacteria and other prokaryotes. Prokaryotes play critical roles in a variety of ecological processes, including nitrogen fixation, decomposition, and symbiosis with other organisms. Understanding the biology and ecology of prokaryotes is important for many fields, including agriculture, medicine, and environmental science.
In Sapp, Jan ed. Thes… Protozoa , Protozoa Protozoa are a very diverse group of single-celled organisms, with more than 50,000 different types represented. They also form a major component of oceanic plankton. Bacteria in Biology, Biotechnology, and Medicine. One species of Rickettsia causes typhus.
Five Kingdom Classification: Kingdoms, Features, Examples
Other bacteria are able to utilize elements like nitrogen, sulphur, hydrogen, or iron to make their food. These filaments are made up of two types of cells Green photosynthetic cells fix the atmospheric carbon dioxide and release oxygen during photosynthesis. Instead, a gas vacuole may be present. This soil must have good supply of organic manure. Only One Answer: The five-kingdom classification was proposed by R. Bacteria are classified into gram-positive bacteria when their cell wall is stained by gentian violet or gram-negative when their cell walls are not stained by gentian violet.
The 6 Kingdom Classification of Prokaryotes and Eukaryotes
Certain bacteria, including the soil bacteria Actinomycetes, produce antibiotics. On average, about one in every 200 bacteria is likely to have a mutation in at least one of the genes. Springer Series on Biofilms. According to this system, there are five main kingdoms. Eubacteria… Archaebacteria , Archaebacteria General characteristics Groups of Archaebacteria Resources Life on Earth can be divided into three large collections, or domains. They are autotrophs and synthesize their own food through the process of photosynthesis. A They contain the inclusion bodies like ribosomes and larger masses scattered in the cytoplasmic matrix.
The Linnean system of classification has kingdoms as the highest level, with six other subdivisions down to the species level. Prokaryotes consist of two kingdoms: the archaebacteria and the eubacteria. What is a Prokaryotic Cell? One of the bacterial diseases with highest disease burden is tuberculosis,caused by the bacterium Mycobacterium tuberculosis. Moist heat causes coagulation of proteins. This decomposition is a vital process.
There is some evidence that archaebacteria may be more closely related to the eukaryotes than to the other group of prokaryotes, the eubacteria. Cyanobacteria are threatened, however, by ultraviolet radiation, which penetrates the atmosphere as a result of the thinning ozone layer. How do they survive? They are characterized by the presence of a rigid cell wall, and if motile, a flagellum. Amongst these, the Five Kingdom Classification proposed by Robert Whittaker stood out and is widely used. Prevention from bacteria There are different methods to prevent bacteria from attacking: 1.
Rickettsias and chlamydiae are two groups of obligate parasites or pathogens. But they do not affect the structurally-different eukaryotic ribosome. These are 1 bacterial virus Natural bacterial Bacillus subtilis for the development of competence. San Francisco: Pearson Benjamin Cummings. For example, one of the latest classifications puts forward 7 kingdoms. This ability of members of the Prokaryotae to mutant and so quickly adapt to a changing environment is the principle reason for their success through time. This scheme was the first to establish separate kingdoms for prokaryotes organisms without nuclei and eukaryotes organisms with nuclei.
Examples: Algae, Amoebas, Euglena, Plasmodium, Paramecium, Slime molds, etc. They do not have a well-defined nucleus and also lack cell organelles. The other is the eukaryota. All prokaryotes are characterized by a Prokaryotes are sometimes described by their shape. It is a Gram-positive, soil dwelling bacterium. They grow in waterlogged and wet soil like paddy rice fields.
Spirochetes are eubacteria with a unique spiral-shaped morphology. The endospores become active when the conditions are favourable again. Industrial role of bacteria and cyanobacteria Prokaryotes play important role in industry. Titres Et Travaux Scientifiques 1906-1937 De Edouard Chatton. We are also a verified publisher on various advertisement networks like Ezoic, and affiliate networks like Amazon Global Affiliate.
Cyanobacteria are the foundation for aquatic ecosystems, providing food for protozoa and other aquatic organisms. The commonly used bacteria for biological control are Bacillus ilturingiensis also called BT. Who proposed the five-kingdom system of classification and on what basis? And we all know that plants and animals are definitely multi-cellular. Some blue green algae enter into the tissues of higher plants. Bacteria capable of digesting the hydrocarbons in petroleum. The vast majority are micro… Protista , The Kingdom Protista is the most diverse of all six kingdoms. Some transgenic bacteria are used as biofilter.