What is the simple definition of bacteria?
Bacteria definition :
Bacteria definition is that they are microorganisms classified as neither plants nor animals. They are unicellular and usually only a few micrometers in length.
Planet Earth contains roughly 5 nunillion bacteria (the one to the right of it has 30 zeros), and they account for a large percentage of the planet’s biomass.
Bacteria are found in virtually any environment except aseptic by humans. Thermophilic bacteria are an extreme (Extremophile) bacteria that grow at temperatures above 131 degrees Fahrenheit (55 degrees Celsius).
Thermophilic bacteria live in some of the hottest places on Earth (above 131 degrees Fahrenheit), such as hydrothermal vents in the ocean and hot springs.
Pyrolobus fumari and Strain 121
Being the most powerful, scientists discovered Pyrolobus fumari inside a hydrothermal vents in the Atlantic Ocean at a depth of 3,650 meters below sea level in temperatures as high as 235 degrees Fahrenheit (113 degrees Celsius).
Soon after, another hydrothermal vault located in the Pacific Ocean showed signs of bacterial life enduring higher temperatures. Scientists named it Strain 21 because it lived for 10 hours in the sterilizer at a temperature of 250 F (121 C).
In a lab environment, Chloroflexus aurantiacus grows in temperatures between 122 and 140 degrees Fahrenheit (50 and 60 degrees Celsius).
These bacteria, friendly to the harsh conditions, survive at temperatures higher than those of any other organism that uses photosynthesis but does not produce oxygen (dependent on anoxic photosynthesis).
These thermophilic bacteria have similar characteristics to green sulfur bacteria and purple bacteria. Because of these properties, researchers hope that C. aurantiacus will shed light on the evolution of photosynthesis.
Thermus aquaticus bacteria grow at an ideal temperature of 176 ° F (80 ° C). Scientists first discovered T. aquaticus in hot springs in Yellowstone National Park and California, but later found it in other hot springs around the world and even in hot tap water.
Its most prominent role has been to be used in genetic research, genetic engineering and biotechnology. In the 1980s, with the discovery of polymerase chain reaction (PCR), researchers created copies of specific bits of DNA from trace samples.
Since this method involves dissolving and separating the two strands of each double nucleic acid molecule at high temperatures, it requires DNA that does not degrade at high temperatures as that of T. aquaticus.
It is another type of hyperthermic bacteria that shows promise in the field of biotechnology. Found in Japanese hot springs, it grows in temperatures between 149 and 161 degrees Fahrenheit (65 and 72 degrees Celsius) and can withstand temperatures up to 185 degrees Fahrenheit (85 degrees Celsius). T. thermophilus shares many of its genes with another extreme-climate friendly bacterium, Deinococcus radiodurans, which is highly resistant to radiation, but cannot fully tolerate extreme heat.
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