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!

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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, 16 November 2016

Tampakidou Maria-Ioanna Mpelonias Fivos University of Ioannina

Team 4

Tampakidou Maria-Ioanna, 1479, Mpelonias Fivos, 1178 University of Ioannina

4th  week observation : 11/11/16
The winograsky column-1 continues its microbe development proportionately. This time, the gas production was remarkable. Both methane and hydrogen sulfide were released when the column was opened. So we made an experiment during the opening process. We light fire near the cap of the bottle and a flame development was observed. Therefore, methanogenes might have been increasing  exponentially  this week. So do the sulfur microorganisms. Because of that, we could infer that the conditions became totally anoxic along the column. Every kind of aerobic microorganism might have died. Moreover, the mud inside the column became darker. This could show us that microbes are still increasing. In addition, there might be a small develop in the upper layers of the column of non-sulfur anaerobic and H2S-oxidizers (purple sulfur bacteria).
In  winograsky column-2, there arent any notable changes on the color of the water. This might lead as to the conclusion that there is less microbe growth (at least, not so much anaerobic). Comparing to the first column, there is more gas exchange with the environment. Thus, the chances for the aerobic growth are proliferated in the seconad column. As much reference to the mud, black spots are being leakking out. So we infered that there is a considerable microorganism growth inside the mud. These blackspots are deposits of desomposed matter that are created by anaerobic or anaerobic bacteria or archae.
We should be  patient! Maybe it needs some time for graduation of microorganisms to be observable in both columns. We are looking forward to understanding how the world of microorganisms works.