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, 16 May 2018

UCA_A1, A2: Day 44

In our Winogradsky Column we can see a lot of colours that correspond to very different kind of microrganisms. On the top we can see a big green stripe, that corresponds to algas and heterotrophic bacteria. Under this stripe there is a little orange bubble and we suppose that corresponds to an iron oxidizing bacteria. Under that we can see  amounts of scattered red purple colour, a part localized just under this bubble and another part almost in the bottom of the column. The part wich is localized just under the bubble corresponds to non-sulfure bacteria and the other part corresponds to sulfure bacteria.

Alga obtains energy and carbon by doing photosyntesis  using the light energy and the water. Iron oxidizing bacterias use Fe2+ and CO2.  Non-sulfure bacterias use organic carbon and light energy. Sulfure bacterias use H2S, light energy and CO2 that produced from the CaCO3. The CaCO3 and the water were introduced in the column and the iron can be contained in the mud. We also must remember that microorganisms that grow on the top have more oxygen and less sulfure and the microorganisms which are in the bottom have less oxygen and more sulfure.

1 comment:

  1. Which column is which? what is the difference between the two columns?