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

Tuesday, 30 May 2017

Winogradsky Column. First week (Group B2)

A Winogradsky Column is a microecosystem which  allows us to study all the possible combinations of microorganisms  that can grow in several types of environments.

To prepare it, first we mix 30 g of mud with the next ingredients to provide substrates to all the microorganisms so they can develop properly:

- Yeast extract: 3,03 g
- Iron sulphate: 2,84 g
- Calcium carbonate: 5,10 g
- Sugar: 1,05 g
- Sodium chloride: 3,4 g
- Cellulose: 0,5 g

Then we add 30 g of sand combined with 10 g of mud, with some water on top, and we cover the column.
As we used a lot of organic material, we expect the column to turn into a dark color due to the  big amount of iron sulphate added. We also think the oxygen will be consumed quickly, leading to a better development of anaerobic microorganisms.

                                                                                                                Inés, Daniel y Andrea

1 comment:

  1. Your initial hypothesis is correct. You also added lots of salt (NaCl). Why?

    And lots of labile organic matter (yeast extract).