Winogradsky column lab page!

Welcome to the Winogradsky column lab page! Students from the Departments of Biological Applications and Technology, University of Ioannina and Icthyology and Aquatic Environment, University of Thessaly, Greece and the Microbiology course, Faculty of Sciences, University of Cádiz, Spain, discuss their findings on Winogradsky columns they constructed!

If you want to add a post, please feel free to contact the blog administrators (Hera Karayanni, Sokratis Papaspyrou or Kostas Kormas)!

Καλωσορίσατε στη σελίδα των Winobloggers! Διαδικτυακός τόπος συνάντησης φοιτητών, φοιτητριών και διδασκόντων δύο Τμημάτων από την Ελλάδα: Tμήμα Βιολογικών Εφαρμογών και Τεχνολογιών, Παν/μιο Ιωαννίνων και Τμήμα Γεωπονίας, Ιχθυολογίας και Υδάτινου Περιβάλλοντος, Παν/μιο Θεσσαλίας και ενός από την Ισπανία: Σχολή Θετικών Επιστημών, Πανεπιστήμιο του Cadiz. Παρακολουθούμε, σχολιάζουμε, ρωτάμε, απαντάμε σχετικά με τα πειράματά μας, τις στήλες Winogradsky!

Bienvenidos a la pagina web de los Winobloggers! Aquí los estudiantes y profesores de dos departamentos griegos, el Departamento de Aplicaciones y Tecnologías Biológicas de la Universidad de Ioannina y el Departmento de Agricultura, Ictiología y Sistemas Acuáticos de la Universidad de Thessalia, junto con los estudiantes de Microbiología de la Facultad de Ciencias en la Universidad de Cádiz, se reúnen para observar, comentar, preguntar y responder a preguntas relacionadas con nuestro experimento, la columna Winogradsky.

Winogradksy columns

Winogradksy columns
'In the field of observation, chance only favors the prepared mind' Pasteur 1854

Blog posts

Wednesday, 7 June 2017

POST 2, group 2A UCA

Three weeks later, 

Hello again, in this new post we will report on the changes in our column. We were surprised to see so much biodiversity.

-At the top where sunlight and air play an important roll, we can see aerobic bacteria like Cyanobacteria for example, we realize filamentous structures (fungi) and micro algae. A little bellow it is seen a big bubble and many mechanic chamber made by the enormous amount of organic matter added (CaCO3 breakdown produces CO2 and white substance which it is seen that is CaO).

-In the middle we realize three well differentiated parts. All are anaerobic zones.
  • -First is dark and it will have nonsulfur photosynthetic bacteria like Rhodomicrobium.
  • -Second zone is more reddish due the presence of Purple-S-bacteria.
  • -The last is more greenish due the presence of Green-S-bacteria like Clorobacterium.

-Finally at the bottom it will have anaerobic sediments. It is the darkest. It is seen a Mud mixed and carbonate salts, cellulose or other organics. In this part fermentative processes are carried out by bacteria such as Clostridium and Desulfuvibrio (Chemolithoautotrophs).

To restore balance, we shake the column to remove the bubbles. In the next post we will report on new changes. See you latter! :)

1 comment:

  1. I am just wondering where you appreciate all these different zones. Can you show them on your columns?

    "aerobic bacteria like Cyanobacteria for example"
    Cyabobacteria are photosynthetic microorganisms or green-blue colour.

    "filamentous structures (fungi) "
    If you see any filament these are probably algae. Fungi are not visible to the eye in the marine environment same as in soils and actually their importance has only recently been highlighted.

    "white substance which it is seen that is CaO" The white stuff you see is not CaO. Any ideas?

    "nonsulfur photosynthetic bacteria like Rhodomicrobium... zone is more reddish due the presence of Purple-S-bacteria... more greenish due the presence of Green-S-bacteria like Clorobacterium." I cannot appreciate the green colour. In any case the bacterium Clorobacterium does not exist. What were you referring to?

    Definitely an interesting columna and observations.