Today, 5th of June many different types of mycroorganisms can be seen inside the columns. Those mycroorganism has been living and multiplying since March in two different life conditions:
-In an illuminated environment, we can see many dark stains with a colour between blue and grey in the bottom of the column. Those stains are formed by anaerobic bacteria that breathe with H2S.
In the middle of the column, an orange stain can be seen. This stain is formed by Rhodospirillum, photohertroorganotrophic organisms.
Finally on the surface of the column we can see many green stains, that are cianobacteria and algae.
- In a dark environment, we can see in almost all the column a really big stain with a dark colour between grey and blue. This stain is formed by anaerobic bacteria that breathe with H2S bacteria. On this stain, we can see some orange stains, that are formed by Rhodospirillum, photohertroorganotrophic organisms bacteria.
According with those results, we can declare that in those different life conditions, we can see the same type of mycrooorganisms in both colums, except, that we cannot see photoautotrophic mycroorganism in the dark enviroment, because those mycroorganisms need light energy to live.
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| Light environment |
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| Dark environment |
How is it possible to have photoheterotrophs growing in the dark?
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