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

Saturday, 4 April 2015


Good afternoon, this is the fourth week that we post so our Winograndsky column is one month old! Do you want to know which are the results after one month cultivating bacterias? If so, keep reading.

In the surface we can observe bubbles (they don't dissapear). We think they're a result of aerobic bacterias breathing because they can receive oxygen easily due to they're in the surface. That's why last week we couldn't see any activity there, they didn't change their colour but they were breathing so that this week the results (oxygen produced) can be observed.

Then, around the big black spot there's still a white halo around it. In the dark part, there isn't any orange spot, because of the foil we used to protect that part from the sun light (the foil doesn't let the light hit the dark part). This way, these bacterias can't use carbon to thrive because they don't receive energy from the sun, so that orange areas are totally disappeared. We can deduct that sun light is totally related to nonsulfur bacterias.

We can see that the typical sand colour (brown) area takes up more space than last week. It means that aerobic bacterias keep working and they work slowly so that we can observe little changes every week.

Light side of the bottle, result of aerobic bacterias.

Light side of the bottle.

Surface of the bottle.

Dark part of the bottle.

On the next photographs you can see how our bottle has changed this month: 

Light side.
Dark side.

1 comment:

  1. Really serious winogradsky monitoring here! Excellent!!!!