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

Wednesday, 15 June 2016

University of Thessaly, Group number:19, Day number:90, Incubation:Light

  Our names are Vasiliki Papadimitriou and Nikos Danavaras and we are presenting our results from Winogradsky column experiment from day 53 to day 90.
  First of all we hane to say that from day 40 until day 52, our experiment hasn't occur any significant changes.


  In the fifty third day we can see that the water colour, after so many days, has become purple again. We can also notice that our sediment now is darker and that all of it has a purple colour.


  In the sixty seventh day we can say that our experiment looks the same except from the water level which is lower from the previous days.


  In the seventy fourth day we can see that the water, from one side of the bottle, has a light pink colour although the rest of the water looks purple. We can assume that the the purple colour belongs to the outer layer, that exists on the inside of our bottle.


  Here we have two photos, one from the first day and one from the last day (90th) of our experiment. Generally we can say that the water colour from the first day until the last day, has changed many colours such as yellow, light yellow, white, green, dark pink and purple. On the other hand the colour of our sediment, which in first day had a light brown colour, after many days became black and in the last weeks of our experiment became purple such as the water colour.
  These gradual changes show us the appearance of many different types of microorganisms. This experiment is a classic demonstration of how microorganisms occupy specific microsites according to their environmental tolerances and their carbon and energy requirements. Aerobic microorganisms live in the top of the bottle and the anaerobic ones live in the bottom. Finally, the column enables us to see how mineral elements such as sulphur, are cycled in natural environments.

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