bacterial and fungal colonies (1 Viewer)

[Tim035]

Describe the differences that you could see between a bacterial and a fungal colony on an agar plate.

 

[Survivor39]

Hmmm.. bacterial colonies are generally smaller. And fungal colonies usually just spread all over your agar plate anyway so you just know it is fungi! You will see a a swarm more so than a "colony", that is, you probably won't see a round small dot.

For yeast, which is a type of fungi, you will see a very distinct large colony. Looking at colonial morphology is difficult. It would be best to do a Gram stain.

 

[Survivor39]

By the way, is this even in the HSC course?

 

[Tim035]

Not strictly, but its come up in a trial paper I'm doing under the practical for identifying microbes in food and water.

 

[ari89]

Bacterial colonies are wet and shiny looking whereas fungal colonies are furry

 

[Lori.]

Fungi extend their hyphae into the agar (or whatever they're growing on). They have a fuzzy texture. The forms that they grow in are referred to as rhizoid or filamentous forms, because of the way that the hyphae extend all over the place.

Bacterial colonies are usually visible as punctiform (little dots) or entire, circular colonies. They are usually smooth.

 

[Tim035]

Fungi extend their hyphae into the agar (or whatever they're growing on). They have a fuzzy texture. The forms that they grow in are referred to as rhizoid or filamentous forms, because of the way that the hyphae extend all over the place.

Bacterial colonies are usually visible as punctiform (little dots) or entire, circular colonies. They are usually smooth.

If you knew that off the top of your head you've scared the hell out of me

But thanx for a very sophisticated answer