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

Friday, 17 April 2015

Cádiz 8B : Winogradsky column

Hi Winobloguers!

         We are a group of three university students in the first year of Biotechnology
at Cadiz University(UCA). We have developed a Microbiology Project on a Winogradsky
column. We started the experimento n the third of March.
         If you want to do it, it will be very easy for you to do.You only need some ingredients that you can change on your choice.
         We have chosen the following components: an Aquarius bottle (It is important to use the
bottle with a wide mouth) , beach sand, mud taken from San Pedro river, sediment of a
lagoon, starch, engine oil, salt, CaCO3, CaSO4, FeSO4 and water.
         All these elements have been mixed before putting them into a bottle. In our column, the
sediment represents three-quarters of the bottle and the other quarter left is the amount of
water added.
             The bottle is placed next to the window, so one side of the bottle receives some light durong
the day meanwhile the other side of the bottle does not receive any light. Also, oxygen is
allowed to enter because the top of the bottle is half-opened.
              Taking into account the elements we have added to the column, we think that after the
necessary period of time, halophilic bacteria (bacteria that are found in salt satured
environment), sulphate-reducing bacteria, ferrous bacteria and bacteria that degrade the
engine oil could appear.
         During the first week, our mixture has experienced few changes. The most outstanding change
is the volume reduction of the sediment and the expansion of the water volumen, occupying
one third of the total volumen of the bottle. Also the color of the sediment has changed, being
a little bit darker.
         The second week the bottle was moved to another place, but the same conditions as the first
bottle remained (the light on one side of the bottle, the half-oponed tap). There have not
been  important changes during the second week in our Winograsky bottle.The most
outstanding ones are the darkening of the sediment and the expansion of the water
volumen like the first week.

See you soon!


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