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A representation of the endosymbiotic theory. An endosymbiont or endobiont [1] is an organism that lives within the body or cells of another organism. Typically the two organisms are in a mutualistic relationship.
Symbiogenesis (endosymbiotic theory, or serial endosymbiotic theory [2]) is the leading evolutionary theory of the origin of eukaryotic cells from prokaryotic organisms. [3]
It is suggested that specifically ancestors of mitochondria and chloroplasts entered into an endosymbiotic relationship with another prokaryotic cell, eventually evolving into the eukaryotic cells that people are familiar with today. [4]
Fungal-bacterial endosymbiosis encompasses the mutualistic relationship between a fungus and intracellular bacteria species residing within the fungus. Many examples of endosymbiotic relationships between bacteria and plants, algae and insects exist and have been well characterized, however fungal-bacteria endosymbiosis has been less well described.
Endogenosymbiosis is an evolutionary process, proposed by the evolutionary and environmental biologist Roberto Cazzolla Gatti, in which "gene carriers" (viruses, retroviruses and bacteriophages) and symbiotic prokaryotic cells (bacteria or archaea) could share parts or all of their genomes in an endogenous symbiotic relationship with their hosts.
Cyanobionts play a variety of roles in their symbiotic relationships with the host organism. [2] [4] [5] They function primarily as nitrogen- and carbon-fixers.However, they can also be involved in metabolite exchange, as well as in provision of UV protection to their symbiotic partners, since some can produce nitrogen-containing compounds with sunscreen-like properties, such as scytonemin and ...
The Federal Reserve on Thursday made its second rate cut of this year, with the decision coming less than two months after the central bank's surprise jumbo cut in September.. The Fed shaved ...
[citation needed] Today modern microbialites are scarce, and are formed mainly by Pseudomonadota (formerly Proteobacteria), cyanobacteria, sulphate-reducing bacteria, diatoms, and microalgae. [citation needed] These microorganisms produce adhesive compounds that cement sand and join other rocky materials to form mineral "microbial mats". The ...