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

Thursday, 6 April 2017

UCA_E5-6MICRO: First day.

Hi! We are Anabel, Paco, Irene, Misael and Gabriel students of Enology. We will show you our experiment of Winogradsky column during this quarter.

To prepare our Winogradsky’s column we have chosen supply carbon with extract of yeast due to it is an excellent way to get nutrients like vitamins and amino acids. We have weighed 1,4g.
Later we have weighed 40g of mud and 0,6g of Na2SO4 which is the substrate to growth of sulphate reducing bacterias.
The mud and Na2SO4 are mixed with extract of yeast and they are divided in two columns.
Then we weighed 180g of sand and 60g of mud, then mixed and divided in columns. One column was put in the dark and the other one was put in natural light.
What we expect is that there is stablished oxygen gradient and an interdependence in the columns between different micro-organisms included in the columns.
In the zone below at columns micro-organisms that develop fermentatives process should grow producing alcohol and fatty acids like subproducts of their metabolism. This products are substrates for the development of sulphate reducing bacterias. This bacterias liberate sulphide that spread to the oxygenated higher zone creating a gradient where photosynthetic bacterias that use sulphur are developed.
Finally, the cianobacterias and algae grow in the higher zone and they liberate oxygen that keep this zone aerobic.
We haven't taken photos of our column in this first state, but later we will upload some of them.

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