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, 22 June 2017

UCA_8A_1: First Day!

The target of this practice is to create an aquatic ecosystem. It would let us learn about how are the bacteria from the mud of a river. In this case, our mud is from the Rio of San Pedro.
We added 20g of mud, 60g of sand and some water. 

We wanted the bacteria to have a good culture medium, so we also added the following nutrients:
-          -As a source of carbon, 0.2g of sugar and 0.2g of cellulose.
-          -As a source of sulfur, 0.2g of plaster and 0.2g of sodium sulphate.

We mixed all those substances with the mud and the sand, that’s how  we created our column. From the part of top of the column to the deepest part, the concentration of oxygen decrease, so that’s how we know that the bacteria at the top of the column are aerobic and the ones that are at the deepest part are anaerobic. There’s also a gradient of sulfide. It comes from a very low concentration at the top of the column to a higher concentration at the bottom. 

There's a photo from the 7th day. We can apreciate that the colour of the bottom is darker, the first day the colour was equal in the whole column.

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