What are the function of endospores in bacteria?

Asked By: Haimei Bakour | Last Updated: 4th May, 2020
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An endospore is a dormant, tough, non-reproductive structure produced by a small number of bacteria from the Firmicute family. The primary function of most endospores is to ensure the survival of a bacterium through periods of environmental stress.

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Likewise, people ask, what does the presence of endospores indicate about a bacteria?

An endospore is a dense, multilayered structure that contains the genetic material of the bacterial cell. When more favorable conditions arise the endospore germinates, again forming a viable vegetative cell. The presence of endospores in a bacterial culture can be detected by staining with malachite green.

Secondly, where are endospores located in bacterial cells? Endospores can form within different areas of the vegetative cell. They can be central, subterminal, or terminal. Central endospores are located within the middle of the vegetative cell. Terminal endospores are located at the end of the vegetative cell.

In respect to this, what type of bacteria produce endospores?

Endospores are dormant alternate life forms produced by the genus Bacillus, the genus Clostridium, and a number other genera of bacteria, including Desulfotomaculum, Sporosarcina, Sporolactobacillus, Oscillospira, and Thermoactinomyces.

What kind of conditions can endospores survive?

Endospores can survive without nutrients. They are resistant to ultraviolet radiation, desiccation, high temperature, extreme freezing and chemical disinfectants. They are commonly found in soil and water, where they may survive for long periods of time. Bacteria produce a single endospore internally.

36 Related Question Answers Found

What are harmful bacteria called?

Harmful bacteria are called pathogenic bacteria because they cause disease and illnesses like strep throat, staph infections, cholera, tuberculosis, and food poisoning.

Why are endospores dangerous?

Endospores are highly dangerous bio-terrorist weapons. This is because they are smaller than the vegetative state. A bacterium, in itself, is already smaller than a eukaryotic cell. Therefore, considering the small size of endospore, a small volume of it can already contain a large quantity of it.

What are Exospores?

Exospore is an asexual spore that is seperated from the mother cell by the formation of septum. 2. Exospore are produced by fungi and algae. 3. Exospores are formed near an end of the mother cell.

How do you kill spores?

Chemical disinfectants can kill bacteria, but they do not destroy their spores. A process called sterilization destroys spores and bacteria. It is done at high temperatures and under high pressures. In health care settings, sterilization is usually done using a device called an autoclave.

Can boiling water kill endospores?


While significantly resistant to heat and radiation, endospores can be destroyed by burning or by autoclaving at a temperature exceeding the boiling point of water, 100 °C. Endospores are able to survive at 100 °C for hours, although the larger the number of hours the fewer that will survive.

Why is Endospore important?

It allows the bacterium to produce a dormant and highly resistant cell to preserve the cell's genetic material in times of extreme stress. Endospores can survive environmental assaults that would normally kill the bacterium.

How can bacteria be helpful?

Useful bacteria
Bacteria have long been used by humans to create food products such as cheese, yoghurt, pickles, soy sauce and vinegar. We are also able to use bacteria to break down our sewage and to clean up oil spills.

Why are bacteria important to humans?

Bacteria can be very helpful to humans and other organisms. Most of these bacteria are in your digestive system. There, they help to digest substances that the human body cannot break down, like many carbohydrates and things called short chain fatty acids. It is important that we keep this population healthy.

Do viruses form endospores?

Some bacteria can also reproduce asexually by forming thick-walled endospores that are very resistant to conditions of extended heat, cold, or dryness. An endospore is formed within the cell body of a bacterium. Usually a bacterium forms only one endospore and that endospore will produce only a single bacterium.

Do all bacteria have ribosomes?


Ribosomes - Ribosomes are microscopic "factories" found in all cells, including bacteria. Bacterial ribosomes are never bound to other organelles as they sometimes are (bound to the endoplasmic reticulum) in eukaryotes, but are free-standing structures distributed throughout the cytoplasm.

Are endospores living?

Endospores are generally considered the most resistant living structures known. Endospores are able to resist desiccation (which just means drying), extreme heat and cold, radiation, chemical reactions, acids, and the effects of long periods of time, as illustrated by the endospores found in the bee belly.

What are the advantages of producing endospores?

Endospores can survive without nutrients. They are resistant to ultraviolet radiation, desiccation, high temperature, extreme freezing and chemical disinfectants. While resistant to extreme heat and radiation, endospores can be destroyed by burning or by autoclaving.

What diseases are caused by Endospore forming bacteria?

Infectious diseases such as anthrax, tetanus, gas gangrene, botulism, and pseudomembranous colitis are transmitted to humans by endospores.

What is the difference between Spore and Endospore?

The main difference between spore and endospore is that spore is an active reproductive structure mainly produced by plants and fungi whereas endospore is a dormant, non-reproductive structure of bacteria. Furthermore, organisms produce more than one spore at a time while a bacterium produces a single endospore.

How do bacteria reproduce?


Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates).

Does E coli form endospores?

coli does not form endospores and, depending on the genome configuration, its lifestyle might vary from commensalism to pathogenicity (Clements et al., 2012; Leimbach et al., 2013). Some E. coli strains are important enteric and extra-intestinal pathogens (Leimbach et al., 2013).

How are spores formed?

Spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Under favourable conditions the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes.