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, 30 April 2015

Hello blockers, my name is Constantinos Kindynis 

I'm doing an experiment on Winogradsky column. In this column, I used a quantity of sediment and seawater from the beach Anauros which is a region in the southwest of Volos. The components of the experiment was an amount of sea water, one egg and a paper pieces.

1st DAY 
During the first day of our experiment, the column was sealed and placed in a bright place with relatively small temperature changes.


 5 Week

After 5 weeks the color of the style is become pink


Mastora Katerina  - Kritikos Thanos.
 Hello everyone, 

after the 10th day of our experiment, the statue of sediment has gradually obtained in her total length a total black color (image 1). Simultaneously, the statue of water was colored with black color. The conditions ,which have dominated in this column, is anaerobic and the black color is caused by the presence of FeS (Hydrogen sulfide).This chemical compound is created by the counteraction of ferrum(Fe) and selfur( S).As a result there is a production of  FeS (Hydrogen sulfide).

  After a period of time and between the 15th and 20th day of our experiment, the statue of water has started to obtain a pink color. Gradually, the first centimeters of sediment surface have also acquired a pink color (Image 2). The quantity of cellulose, which added up, has led to the rapidly production of microorganisms and also has consumed the quantity of oxygen (O2)  firstly in water column and after that in the sediment surface. In this point, we have noticed that the pink color declares the anaerobic conditions of the column. It is true that, only microorganisms which have the capacity to grow up in anaerobic conditions can develop in this environment and to cause a fermentation of organic matter. The anaerobic respiration is a process in which organic substrates have fully degrade emissions of CO2. At image 3 is presented at the water surface the plates of calcium (Ca) which have already referred to our older post.