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, 26 October 2016


Our experiment took place in Vrellis Lake of Ioannina on 21.10.2016 at 13:00 o’clock.
We used two plastic bottles (1,5L), a funnel, sediment from the lake (mud), a sheet of newspaper, two whole eggs (with the pod) and water from the lake. After mixing the sediment with the enrichment materials, we filled the ¾ of the first bottle and then we added water from the lake. In the second one we filled the ¼ of the bottle with the sediment and the enrichment materials and the other 2/4 without them (just the sediment from the lake). After that we added water from the lake till the top of the bottle. We left the bottle in a calm situation to precipitate our sample and then we placed it in a spot with light during the entire day and stable temperature.

We are expecting that microorganisms in the first bottle will grow up faster than the second one because they have access in more nutritional ingredients (we provide them more carbon(newspaper) and sulphur(eggs) source), or otherwise  we will notice that so much quantity of nutritional ingredients is a negative growth regulator.

Left one: bottle with ¾ sediment-enrichment materials and lake water
Right one: bottle with ¼ sediment-enrichment materials, 2/4 sediment and lake water

1 comment:

  1. So, you are team no2, right? You know your columns cannot stand in an upright position anymore? They!