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

Sunday 20 May 2018

UCA_7B,8B_1: Day 44

Winogradsky column- Day 44

Group 7B (Lucas Garín Ortega and Alba Mejías Gallardo)
Group 8B (Laura Lucena del Amo and Noelia Moares Fernández)

After 44 days, we have checked our columns and we have observed a few changes.
The column made by group 8B, the one exposed to sunlight, didn't have a lot of changes. We could see that the layer of  lighter color previously seen was bigger than before, that means that there were more photoautrophic microorganisms. Also, we could appreciate that there were more bubbles, formed by the sugar fermentation of microorganisms chemoheterotrophs.

Group 8B column

The column made by group 7B, the one kept in the dark, has suffered the following changes. We could appreciate that the column was darker due to the H2S breathing of bacteria. The water on the surface has cleared and an orange layer has formed on the surface. This could be because of the proliferation of photoorganoheterotroph microorganisms. Last but not least, a lighter spot has been formed from a bubble generated by microorganisms breathing.
Group 7B column



1 comment:

  1. How is it possible to have photoheterotrophs growing inthe dark? Maybe the orange colour is from something else? What can it be?

    ReplyDelete