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

Wednesday 11 May 2016

UCA_3B E _4: 6 weeks later..




The last time we saw the bottle, was two weeks ago. There have not been many changes. The appearance remains the same, only the liquid part is clean. We suppose the bacteries are died because we close the bottle cap, and they din't have enough air to breathing...
Resultado de imagen de emoticono carita triste
                                                         
In the center, you can see a hole caused by an air bubble to open the bottle. and then came out very bad smell .
Now we keep the bottle, but not completely closed.

2 comments:

  1. Bacteria are tough critters. You smell what you smell because there are bacteria producing it (producing hydrogen sulfide, the rotten egg smell). So your bacteria are not dead! By closing the bottle what you did is to prevent the oxygen entering the bottle, the bottle became completely anaerobic, sulfate reduction was active all the way tot he sediment surface, hydrogen sulfide did not get oxidised by oxygen and it escaped to the water column and your nose... Now you know. Next time do not close the bottle cap completely.

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  2. Your blog provided us with valuable information to work with. Each & every tips of your post are awesome. Thanks a lot for sharing. Keep blogging, dotent

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