China Pharmaceutical Science & Technology [Network] No bacteria are a large nucleus nuclear membrane package, there is only referred to the original single-cell organisms intended nucleus (nuclear region) (or nucleoid) naked DNA. Bacteria can be propagated in either asexual or genetic recombination, half of which is invisible to the naked eye and needs to be observed through a microscope. In fact, there are many blind spots about bacteria. The following summarizes the nine facts about bacteria.
1, no bacteria, the human body known to humans will end
In December 2014, two scientists raised a question. What would happen to the world if there were no bacteria?
If there is no intestinal bacteria, the human digestive system will be damaged, and the animal's digestive system will suffer more damage. If there is no nitrogen-fixing soil bacteria, the crop yield will be greatly reduced. In addition, the biological decomposition will stop, the waste will continue to accumulate, and the nutrient cycle that supplies life will be interrupted.
2, home bacteria also "moving" with the owner
In August 2014, scientists spent six weeks classifying bacteria in seven families. The results showed that each family had a different bacterial population, depending on the family members' different living habits.
In the study, three families moved, and the results showed that the corresponding bacterial population also followed the owner's “movingâ€.
3, bacteria can help solve the case
In 2014, scientists obtained several research findings that confirmed that bacteria can provide important clues to solve the case.
A study found that microbes in the dead body were propagated in a predictable manner and could be used to determine specific time to death. Not long ago, researchers found that microbes in pubic hair can be used to identify sex offenders, especially for condoms used by rapists.
4, human intestinal bacteria are hereditary
Specifically, which bacteria choose to colonize your gut depends on your genes.
In 2014, a study by scientists showed that more than 1,000 stool samples were analyzed on 416 pairs of twins. The results showed that the intestinal bacteria in the twins were more similar than the non-twin. In addition, certain bacteria appear to be susceptible to the genes of human hosts.
5, fecal capsules can effectively treat patients
In October 2014, the researchers developed an odorless frozen capsule containing a stool sample from a healthy person to allow the antibiotic-resistant Clostridium patients to take these “fecal capsulesâ€. The results showed that 20 patients recovered successfully. Next, scientists plan to grow bacteria in capsules instead of extracting them from the stool.
6, yeast traps fruit flies
The yeast used for making wine can produce fruit esters, which add a delicious aroma to the beer.
In fact, this product of yeast can be used to attract fruit flies, which can produce a large number of aromatic compounds during the fermentation process, attracting more fruit flies. Researchers have analyzed that yeast can jump to other locations to breed in this way.
7, cheese skin contains a lot of bacteria
A 2014 study showed that cheese cracks contain about 10 billion bacterial cells. Although it has been known for centuries that bacteria and fungi turn milk into delicious cheese, they don't know the exact amount of bacteria. . Scientists have conducted research and analysis on 137 types of cheese in 10 countries, and finally reached this conclusion.
8. The flora is the source of innovative drugs
Bacteria living in the human body produce a large number of molecular particles, some of which can be used to make health-promoting drugs. Researchers extract Lactobacillus gasseri from the human vagina to make a new antibiotic called lactocillin. .
In a test tube experiment, the lactocillin drug killed several potentially harmful bacteria in the vagina, but retained harmless bacteria.
9. For all bacteria we may need a new branch of life.
Life on Earth is divided into three major types of eukaryotic cells (plants, animals), bacteria (monocytes), and archaea (single-cell organisms).
In December 2014, two scientists questioned the definition of this branch of life. They pointed out that diverse microorganisms in the ocean and other environments, as well as undetected organisms that may have genetic differences, are not included in the above branches of life.
(Can the flora make innovative drugs? Count the nine facts about bacteria)
1, no bacteria, the human body known to humans will end
In December 2014, two scientists raised a question. What would happen to the world if there were no bacteria?
If there is no intestinal bacteria, the human digestive system will be damaged, and the animal's digestive system will suffer more damage. If there is no nitrogen-fixing soil bacteria, the crop yield will be greatly reduced. In addition, the biological decomposition will stop, the waste will continue to accumulate, and the nutrient cycle that supplies life will be interrupted.
2, home bacteria also "moving" with the owner
In August 2014, scientists spent six weeks classifying bacteria in seven families. The results showed that each family had a different bacterial population, depending on the family members' different living habits.
In the study, three families moved, and the results showed that the corresponding bacterial population also followed the owner's “movingâ€.
3, bacteria can help solve the case
In 2014, scientists obtained several research findings that confirmed that bacteria can provide important clues to solve the case.
A study found that microbes in the dead body were propagated in a predictable manner and could be used to determine specific time to death. Not long ago, researchers found that microbes in pubic hair can be used to identify sex offenders, especially for condoms used by rapists.
4, human intestinal bacteria are hereditary
Specifically, which bacteria choose to colonize your gut depends on your genes.
In 2014, a study by scientists showed that more than 1,000 stool samples were analyzed on 416 pairs of twins. The results showed that the intestinal bacteria in the twins were more similar than the non-twin. In addition, certain bacteria appear to be susceptible to the genes of human hosts.
5, fecal capsules can effectively treat patients
In October 2014, the researchers developed an odorless frozen capsule containing a stool sample from a healthy person to allow the antibiotic-resistant Clostridium patients to take these “fecal capsulesâ€. The results showed that 20 patients recovered successfully. Next, scientists plan to grow bacteria in capsules instead of extracting them from the stool.
6, yeast traps fruit flies
The yeast used for making wine can produce fruit esters, which add a delicious aroma to the beer.
In fact, this product of yeast can be used to attract fruit flies, which can produce a large number of aromatic compounds during the fermentation process, attracting more fruit flies. Researchers have analyzed that yeast can jump to other locations to breed in this way.
7, cheese skin contains a lot of bacteria
A 2014 study showed that cheese cracks contain about 10 billion bacterial cells. Although it has been known for centuries that bacteria and fungi turn milk into delicious cheese, they don't know the exact amount of bacteria. . Scientists have conducted research and analysis on 137 types of cheese in 10 countries, and finally reached this conclusion.
8. The flora is the source of innovative drugs
Bacteria living in the human body produce a large number of molecular particles, some of which can be used to make health-promoting drugs. Researchers extract Lactobacillus gasseri from the human vagina to make a new antibiotic called lactocillin. .
In a test tube experiment, the lactocillin drug killed several potentially harmful bacteria in the vagina, but retained harmless bacteria.
9. For all bacteria we may need a new branch of life.
Life on Earth is divided into three major types of eukaryotic cells (plants, animals), bacteria (monocytes), and archaea (single-cell organisms).
In December 2014, two scientists questioned the definition of this branch of life. They pointed out that diverse microorganisms in the ocean and other environments, as well as undetected organisms that may have genetic differences, are not included in the above branches of life.
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