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

Sunday, 11 June 2017

Winogradsky Column After five weeks (Group A)

We will comment on the progress of our Winogradsky column after 5 weeks.
First we see the column retained in the dark, and you can see that there have been no major changes from the last time we saw it. It is true that certain microorganisms have grown on the surface of the whitish column, and the presence of bacteria (orange color) is still observed. In general, the column takes on a gray/black color, and the water level has not changed.

Now let's comment, the column kept in the light, which has undergone various changes. On the one hand, we note that the gap formed by the air accumulated between two parts of the column, has disappeared. In the middle of the column, you can see a brown area that was not there before. This brown area has been formed thanks to the union of both parts, separated by the "air bubble". The water present on the surface, has acquired enough turbidity, and in addition, there are elements floating in it.

In the background, we see small areas of pink color, which is due to the presence of photosynthetic bacteria. The more red the color, the more intense the bacteria will be.

We can also observe a cloudy area of ​​green color, which may be due to the presence of sulfur bacteria.

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