How are endospores and cysts the same?

Endospores are essentially dormant or resting cells and their formation does not represent a reproductive process. The same is true for cysts, although a cell producing cysts in fact gives rise to two. Cyst formation is a characteristic of the genus Azotobacter.

Is cyst and spore the same?

Both bacterial spores and cysts provide protection from harsh environmental conditions. Bacterial spores are reproductive cells, whereas cyst formation takes place by differentiation is the vegetative cell.

What is spore and cyst?

The key difference between cyst and spore is that cyst is a dormant stage of bacteria or protozoa that facilitates their survival during unfavourable environmental conditions, while spore is a reproductive structure that can develop into a new individual.

What are Exospores and examples?

Exospores are produced by the members of the phylum Actinobacteria. Formed within or inside the vegetative cell. Formation outside the vegetative cell. It is a structure formed by bacteria. Examples of exospores include Conidiospores, streptomyces, actinobacteria and diverse groups of fungi, algae and Cyanobacteria.

What is protozoan cyst?

protozoan cyst. infectious form of many protozoan parasites such as entamoeba histolytica, giardia lamblia, balantidium coli, etc., usually passed in the faeces and provided with a highly condensed cytoplasm and resistant cell wall.

What do endospores mean?

Endospore – A differentiated cell formed within cells of certain Gram-positive bacteria that are extremely resistant to heat and other harmful conditions and agents. Endopsore are the resting stage during the life cycle of some bacteria, formed in response to adverse conditions.

What are spores resistant to?

Generally, spores are resistant to approximately 40–45 °C higher temperatures than their corresponding vegetative cells, increasing the spore heat tolerance up to 105-fold. Moreover, spores are extremely dormant and may survive thousands of years in the wet state.

Where does spores come from?

Spores are produced by bacteria, fungi, algae, and plants. Bacterial spores serve largely as a resting, or dormant, stage in the bacterial life cycle, helping to preserve the bacterium through periods of unfavourable conditions.

What is the Exospore?

Medical Definition of exospore : one of the asexual spores separated from a parent cell (as in phycomycetous fungi) by formation of a septum.

What is Exospore formation?

Exospore Exospores are formed external to the vegetative cell by budding at one end of the cell. Exospore is another resistant bacteria produced mainly by fungi and algae to reproduce under unfavorable conditions . Exopores develop from the end of the mother cell by cell division .

What are the 3 types of protozoans?

CLASSES OF PROTOZOA

• Amebas (representative: Ameba proteus)
• Flagellates (representative: Trypanosoma, Euglena)
• Ciliates (representative: Paramecium)
• Apicomplexa (representative: Plasmodium)

Why do protozoans form cysts?

In excystment, the exact stimulus is unknown for most protists. Unfavorable environmental conditions such as lack of nutrients or oxygen, extreme temperatures, lack of moisture and presence of toxic chemicals, which are not conducive for the growth of the microbe trigger the formation of a cyst.