Are Bacteria Biotic Or Abiotic? 7 Facts You should Know


It is a very confusing and debating issue that are bacteria biotic or abiotic. Biotic and abiotic factors make the whole ecosystem. The living things are known as biotic and the non-living things are known as abiotic.

Bacteria has unique characters of biotic and abiotic both. The confusion of are bacteria biotic or abiotic arises from here. The living organisms like plants, animals are biotic and the nonliving matters like soil, water are abiotic. They are a part of the ecosystem. The interaction between their components is complex.

How are bacteria biotic?

It is finally decided that the bacteria are biotic. Because abiotic components do not need any food or grow or reproduce. But bacteria do these all. The question are bacteria biotic or abiotic is over.

In the external environment the bacteria show their abiotic characters. The confusion are bacteria biotic or abiotic came from this area. Actually, they need a specific host to show their biotic nature. Decomposers are also biotic and bacteria of a kind decomposer. Bacteria are unicellular but they are biotic.

3 biotic factors are there divided into main categories in an ecosystem. They are Producers which are autotrophs, Consumers which are heterotrophs and finally Decomposers which are detritivores. Bacteria belonged to the decomposers.

Are bacteria biotic or abiotic is a vital question. But there are some examples of biotic factors like protists, bacteria, fungi, plants and animals. Some examples of abiotic components or factors are soil, water etc.

Some of other examples of biotic factors like humans, wild animals, insects, birds etc. Some of other examples of abiotic factors like rainfall, humidity, climate, pH , temperature etc.

Are all bacteria biotic?

All bacteria are biotic. The hesitation of are bacteria biotic or abiotic is over due to the characters of living components like birds, animals, human, fungi etc. In one cell they do all functions.

In one cell bacteria grow, move and reproduce themselves through many procedures. The tangle of are bacteria biotic or abiotic is because of the unicellular state of bacteria. Through the hosts they survive in the biotic state. Otherwise, they stay in a dormant stage as an abiotic factor in external environment.

According to the shape bacteria is divided into 5 different types. They are spherical which is known as cocci, rod shaped which is known as bacilli, spiral shaped which is known as spirilla, comma shaped which is known as vibrios and finally corkscrew which is known as spirochaetes.

One of the most distinctive biotic character of bacteria is growth. In a proper culture medium bacteria are kept with the proper care. The 6 main things for the growth of bacteria are food, moisture, oxygen, time, acidity and finally temperature. If the suitable needs are supplied, they start to grow accordingly.

Bacterial growth has 4 stages which are- the lag phase, the log phase, the stationary phase and the death phase. It is plotted in a graph. Here is logarithm of numbers of cells in that particular culture. They mainly need protein rich culture. But it has to be looked after at a certain time gap.

Actually, in every 4-20 minutes bacteria can grow if the environment is suitable. Growth kinetics and numbers are important factors in bacteria growth plotting. As it also kind of maintain host population, bacterial population is also should me maintained.

are bacteria biotic or abiotic
Bacteria growth curve from Wikipedia

Biotic characteristics of bacteria

When bacteria enter in a host body it shows many changes from abiotic to the biotic characteristics. Are bacteria biotic or abiotic is over. They show the growth through the nutrients from the hosts.

The dormant stage gets rid of when it shows its living characteristics. They are- unicellular, microscopic, no nucleus, plasma membrane and finally prokaryotic. Actually, it is a lot difference between the external and internal environment. They got nutrients from the host’s body through succession.

One of the most distinctive biotic character of bacteria is locomotion. It moves with the help of flagella. Mainly prokaryotes use this including archaea. Flagellum (plural flagella) is a kind od helical filaments. It can move clockwise or anticlockwise. Rotating flagella can do swarming too.

3 types of locomotion present in bacteria. They are flagellar, spirochaetal and gliding movement. It is also known as motility. Flagella is look alike cilium in case of structure. Flagellum stick itself to the surface and can extend up to a certain distance. It can be 1000 nm long and 30 nm wide.

are bacteria biotic or abiotic
Bacterial Locomotion from Wikipedia

Are most bacteria biotic or abiotic?

Not most but all bacteria are biotic. The knot of are bacteria biotic or abiotic is because the bacteria show the abiotic nature in external. Because of their size they are considered as abiotic sometime.

Fungi and bacteria are the most known decomposer among all the components of nature in the ecology. It is a living thing which gain energy by making the smaller particles and simple molecules from the dead living components like plants or animals. This factor influences the environment of organisms in presence.

One of the most distinctive biotic character of bacteria is reproduction. They did it primarily through the binary fission process. Here single cell divides into 2 new daughter cells. If all conditions are fine, they may double themselves in every 10-15 minutes.

Those 2 daughter cells are exactly same as the parent cells. Except this process, they can reproduce themselves in 3 more ways like conjugation, transformation and transduction by exchanging DNA through these processes.

 Are bacteria biotic or abiotic- this is now clear that they are biotic as they have 2 types of reproduction- sexual and asexual. Under sexual there are 3 types like conjugation, transformation and finally transduction. And under asexual reproduction there are 4 types.

The 4 types are binary fission, conidia formation, budding, and finally cyst formation. There is also a type of reproduction occurred in bacteria through Endospore formation. Binary fission is more poplar for bacterial reproduction. Salmonella and E. coli also did this process.

are bacteria biotic or abiotic
Binary Fission from Wikipedia

Is nitrogen fixing bacteria abiotic or biotic?

Abiotic nitrogen is fixed by the biotic bacteria and are bacteria biotic or abiotic this is the main question. But biological nitrogen fixation is happened by the prokaryotes and bacteria are prokaryotes.

Biological nitrogen fixation is occurred by prokaryotes and are bacteria biotic or abiotic is the main knot which is solved by the bacteria like soil bacteria, cyanobacteria etc. 16 ingredients (chemical and abiotic mainly) are needed for growth of trees, animals, microbes and many organic and biotic components.

Usually, nitrogen fixing bacteria transforms atmospheric nitrogen into fixed nitrogen in the soil as inorganic components (which is usable for the plants). There are many nitrogen fixing bacteria like- Rhizobium, Azospirillum, Bradyrhizobium, Frankia, Ensifer, Derxia etc.

Mainly there are some nodules under the soil attached with the roots. They are known as legumes and symbiotic connections with some members. They are from the major groups of plants. It is agriculturally most effective and benefitted.

There are 3 types of nitrogen fixation. They are the direct interaction of nitrogen and oxygen, chemical combination of calcium carbide and nitrogen and finally direct interaction of hydrogen and nitrogen.

are bacteria biotic or abiotic
Nitrogen fixation from Wikipedia

Is soil bacteria abiotic or biotic?

Biotic and abiotic factors make and influence the whole ecosystem. In which abiotic components make a huge role on the biotic environment. Soil contains different pH and moistures and many components.

In soil there are many types of bacteria present and are bacteria biotic or abiotic is the main key word here. Because soil is an abiotic component like nitrogen but it works as biotic factor because of the bacteria. It is the mixture of biotic an abiotic factor which effects the biotic part of the ecosystem.

Soil is enriched with nutrients which it got from the excretory part of plants and animals. The bacteria and other decomposers in them made simple form of them and made the soil worth. Are bacteria biotic or abiotic is not main here.

Here it is seen that both of them made the soil full with minerals. For which again plants will be benefitted through the succession through phloem. Some of the soil bacteria are Bacillus, Acidobacteriota, Pseudomonadota, Bacteroidota, Streptomyces, Ralstonia etc.

Is salmonella bacteria abiotic or biotic?

The bacteria can enter into the plants by the effected soil through the succession process through the trees when they took the minerals from the soil. And then they work as the biotic material.

Contaminated after the harvesting and the transporting is the main cause of the outbreak of the Salmonella. From the fecal matter and defected irrigation water the soil is contaminated by the Salmonella. It can stay in soil in dominant and infected at about 400 days. It causes food poisoning in human body.

In green leaves like spinach and lettuce Salmonella are found in the deadly Escherichia form. But in soft, fleshy fruits and vegetables Salmonella found as the pathogen which evolved to make comfort outside the human intestine.

Though are bacteria biotic or abiotic – this confusion makes more suspicious due to the cause of that in plants it is known as “abiotic diseases” or “abiotic disorders”. If the are affected by any kind of fungi, bacteria etc.

Bacteria, fungi, viruses etc microbes are known as biotic factors but if they attack and caused damage they are known as abiotic disease. It is a little bit confusing. Though they work as biotic in host body. But as they noninfectious in the plant body they are known as abiotic disorder.

are bacteria biotic or abiotic
Salmonella Bacteria from Wikipedia

Aheli Dey

Hi....I am Aheli Dey, I have completed my Masters in Zoology. My specialization is in Parasitology and Immunology. I am very enthusiastic in learning new things. I prefer both hard and smart work. Let's connect through LinkedIn-https://www.linkedin.com/in/aheli-dey-793555249

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