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

Tuesday, 3 May 2016

UCA_GroupA2_Day 47_Rio San Pedro sediment + 1,5 g FeSO4 + paper_(column exposed to sunlight)

Forty-seven days have passed since we prepared the column, and there are important changes on it.
  • We can appreciate that the red color has intensified throughout the entire column, but the top of it is more intense than de bottom. This is because more purple non-sulfur bacteria have grown.
  • Moreover, the water is more turbid than the last time we see the column, which is a sign that there are more algae. 
  •  There are also some green veins in the middle of the column, which indicates that green sulfur bacteria have grown there (like chlorobium).
  • At the bottom of the column, we can see that the color is still the same, between black and grey. In this part there are cellulose fermenting microorganisms, because it is the anaerobia part of the column in which microorganisms can´t use the oxygen.

1 comment:

  1. Purple non sulfur bacteria are photosynthetic. How do you know they are these ones if you do not compare with the dark bottle?

    In your column you have enriched in FeSO4. What do you expect the effect of this enrichment would be?