MICROJOURNAL 4: (INVESTIGATION)
“HOW DO BACTERIUM FORM
ENDOSPORES?”
By: Bryoni Booker
What are Endospores?
Ever wore a coat that made you feel so warm when the weather is extremely cold? Well the Endospores of cell not only does that, but it’s almost the same as your house that shelter you from the rain. An umbrella could be an example as well, BUT the rain can reach you at other angles besides your head. A perfect example would be our skin, which is the external covering that protects us from many of things. But the Endospore of a bacterium is amazingly unique, almost like a ‘protective mother’ of the bacteria. It covers the entire bacteria and shields it from almost anything that could harm it.
· Endospores are hardy, defensive structures that enable some bacteria to survive harmful environmental conditions, such as starvation, high temperatures, desiccation, chemical disinfectants and extremes in pH
Source: According to ScienceProfOnline
What is it called when a bacterium forms an Endospore?
When a bacterium forms an endospore, it has a unique name given to it, sort of like a process. For examples, as human beings we go through a variety of phases as we experience the growth that comes with it. So we have the ‘sporulation steps” from fetal to infant to toddler to pre-teen to teenage to adolescent to adulthood to middle adulthood to older adulthood. So the bacteria has its phases too that defines them at that stand point as well.
· The ability to form endospores, a process called sporulation, is a rare talent
Source: According to ScienceProfOnline
Sporulation Steps:
· bacterium's DNA chromosome replicated is copied)
· cell's plasma membrane pinches off between the replicated chromosomes, forming the forespore
· a second membrane encloses the forespore, with calcium and dipicolinic acid forming a cortex between the inner and outer membrane
· an external spore coat encloses the endospore
· endospore is released once the vegetative cell that generated it dies and disintegrates
Did you know that there are bacteria that have the ability to form their own Endospore? Well guess what, there are a few, check out the list below:
- Acetonema
- Alkalibacillus
- Ammoniphilus
- Amphibacillus
- Anaerobacter
- Anaerospora
- Aneurinibacillus
- Anoxybacillus
- Bacillus
- Brevibacillus
- Caldanaerobacter
- Caloramator
- Caminicella
- Cerasibacillus
- Clostridium
- Clostridiisalibacter
- Cohnella
- Dendrosporobacter
- Desulfotomaculum
- Desulfosporomusa
- Desulfosporosinus
- Desulfovirgula
- Desulfunispora
- Desulfurispora
- Filifactor
- Filobacillus
- Gelria
- Geobacillus
- Geosporobacter
- Gracilibacillus
- Halonatronum
- Heliobacterium
- Heliophilum
- Laceyella
- Lentibacillus
- Lysinibacillus
- Mahella
- Metabacterium
- Moorella
- Natroniella
- Oceanobacillus
- Orenia
- Ornithinibacillus
- Oxalophagus
- Oxobacter
- Paenibacillus
- Paraliobacillus
- Pelospora
- Pelotomaculum
- Piscibacillus
- Planifilum
- Pontibacillus
- Propionispora
- Salinibacillus
- Salsuginibacillus
- Seinonella
- Shimazuella
- Sporacetigenium
- Sporoanaerobacter
- Sporobacter
- Sporobacterium
- Sporohalobacter
- Sporolactobacillus
- Sporomusa
- Sporosarcina
- Sporotalea
- Sporotomaculum
- Syntrophomonas
- Syntrophospora
- Tenuibacillus
- Tepidibacter
- Terribacillus
- Thalassobacillus
- Thermoacetogenium
- Thermoactinomyces
- Thermoalkalibacillus
- Thermoanaerobacter
- Thermoanaeromonas
- Thermobacillus
- Thermoflavimicrobium
- Thermovenabulum
- Tuberibacillus
- Virgibacillus
- Vulcanobacillus
MICROSCOPIC IMAGES OF ENDOSPORES!
Come and Check out these cool microscopic images
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