Winogradsky column lab page!


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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

Friday, 9 March 2018

UCA_4B_3B_day7

San Pedro's River sediment + 0.3 g paper + 0.1 g CaSO4


Group 3B: Marcelo Gómez Herrera, Alvaro Lucero Garófano and José Luis Hernández Fernández.
Group 4B: Paula Gilabert Prieto and Pilar Grosso Rodríguez.

Hello everyone!

Today we will explane you how we have done ours Winogradsky's columns.

Firstly, we added San Pedro's river mud (1/3 of the length of the column), exactly 20 grammes.
We must remove big leaves and sticks.
Then we dilute the mud with a little bit of water from the river.
We didn't used distilled water due to the fact that the difference of concentrations will lead to lysis.
We added 0.1 grammes of CaSO4 and 0,3 grammes of paper(celulose). This is for create an atmosphere rich in sulphire and CO2.

Secondly we took another 20 mud grammes and we mixed it with sand.

Finally filled the column with mud until reaching to the top.

Hypothesis:

We have prepared 2 columns exactly with the same compositions. (Explaned in a few lines before)
The unique variable that can change the column is the light.
So we will keep one of them in contact with sunlight, and the other one will be kept in the darkness.
Because of that, the column kept in the light will grow photosyntetic organism, meanwhile in the darknesses will grow chemosyntetic organisms.


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