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

Monday, 24 April 2017

UCA_C2_1: Day 1 - Our Winogradsky column

Hi! We are Irene, Raúl and Nieves. We are studying Biotechnology in Cádiz and we want to show and explain you how we prepares our Winogradsky column. On later posts, we will see some changes due to the growth of many microorganisms.
Our column is made of:

  • Rio San Pedro sediment (mud and sand)
  • 0,23 g sugar
  • 0,02 g filter paper
  • 0,40 g CaSO4
We have decided to add sugar and filter paper in order to give microorganisms a carbon source to do fermentation. They will release some waste products that will be used by another microorganisms to do anaerobic breathing, so they could use CaSO4 (sulphate source) to break down into H2S. This sulphide will be used too by another ones, and so on.
We think that our column is a gradient of O2 and H2S, so we will appreciate different types of microorganisms (aerobic and anaerobic ones) distinguished by colours. At the top of the column, where there is a lot of O2, aerobic microorganisms will grow. Whenever we descend to the bottom, the amount of H2S increases and O2 disappear, so it favours anaerobic microorganisms growth.
We haven't taken photos of the column the first day, but we will see the evolution on the next posts.

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