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

Thursday, 28 April 2016

University of Thessaly, Group number:19, Day number:39, Incubation:Light

  Our names are Vasiliki Papadimitriou and Nikos Danavaras and we are presenting our results from Winogradsky column experiment, from day 12 to day 39.


  In the twelfth day the water is turbid and its colour has become green. The water level is in the same level as it was the previous days and we can also see the thick white line in the middle of our bottle. The sediment continious becoming darker and this is the first day our experiment presents an intense odour.



  In the fourteenth day our bottle has pretty much the same occurance except from the water level which is higher and has reached the surface of the bottle. We can also see that the surface layer is thicker.



  In the fifteenth day the water level is much lower compared with the previous day and we can see that the white line in the middle of our bottle has disappeared. We can also observe that the protective film in the surface of our bottle has pulled inwards.


  In the seventeeth day we can see that various residues in the top of our bottle have disappeared and that the water is less turbid and its colour is no longer green.


  In the twenty second day the water is more turbid and its colour has become green and light purple.


  In the twenty foutrth day the only difference we can observe is the water colour which has become purple and is explained by the presence of photosynthetic microorganisms.



  In the twenty seventh day the water colour is darker purple and the water level is higher compared with the previous days. We can also see that the protective film in the surface of our bottle has pulled inwards, so much, that the shape of our bottle has changed.


  In the thirty second day the water colour is still purple but in the middle of the bottle, the water is darker and more turbid than in the top of the bottle.


  Today (39th day) we can see that the water is very turbid and its colour has become dark pink. We can also see that our sediment has started becoming purple, like the water was the previous days.

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