As it’s been already two lab sessions gone since the start of the semester, the amount of info sprinkled on us is just overwhelming. Therefore, I decided to skip talking extensively about particular sample collecting, solution making, sterilizing procedures and protocols. However, this doesn’t mean I won’t be happy to sacrifice some posts to such things, if any curious readers turn up. We’ll see…
|As an introduction: these guys live on my fingertips...|
|See what can live on your wristwatch?|
One can even notice the place of the battery...
|Red algae, a source of the agar|
The procedure started with a simple touch on the surface we decided to gain the sample from with a cotton ball, open the dish, a quick stroke on the jelly, and close the plate again. It sounds stupid, telling all this, but leaving the dish open for only a couple of seconds is crucial, otherwise you might end up getting some unwanted fellows residing on your construct. Some of us turned to this very easy, however unexpectedly rewarding way of sample collection: they simply left their dish open for 5-10 min at a certain place. As the air is also a workplace for some microbes (they form the so called bioaerosol) these culture mediums weren’t left empty.
|This tiny fellow seems like a castle, doesn't it? Such creatures are continually|
changing their appearance, so this morphology is just a snapshot from its life.
The characterization and defining of species of bacteria based only on morphology is quite hard. In our course schedule there is a class dedicated to this topic, so I refrain myself from giving it a try this time.
|Some beautiful thready creatures right from a public toilet's seat.|