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

Friday, 23 June 2017

Winoblog, The last post, group B7.

        In response to the last post’s comment, Beggiatoa isn’t growing here. Simply, it was cyanobacteria.
Cyanobacteria grow in a space with oxygen, at the top of the column. This area can present a ligth brown. This is the part of the column richer in oxygen and poorer in sulfur. However, certain quantities of SH2 arrive to the first stratum by diffusion from the mud of lower areas. This quantities can be used by sulfide oxidisers.
               To emphasise, at the end of our Winogradsky column, we can observe red and orange colours. 
Rhodospirillum and Rhodopseudomonas produce those colorus. Their abundance depends 
on the amount of hydrogen sulphide that has been produced and that has been utilised. Those 
microorganisms are photoorganotrophs.
                In order to conlcude with our experiment, we think that this experiment have an interesting 
ecologic part. The microorganisms that are involved in the column have the ability to regulate 
a medium that was saturated with nutrients and to generate a gradient of gases.
This microorganisms have a specific metabolic pathways that can produce subtances that others can use
to obtain energy. This “chain relation” through bacterias are so interesnting and can be used in
biotechnological process. For example, this microorganisms can be used to regulate an ecosistem 
that it’s saturated of some substances, this knoledge field is called “Bioremediation”,
and its booming science sector. 

               Other example is generating a “chain” trough some microorganisms to obtain some interesting substances
for humans or pharmaceutical industries.
To sum up, after that experiment we understand better the relations that can be established in our "Winogradsky column”. What`s more, now we understand the real biotechnological potential of bacteria. This experiment does not finish here, it’s only the beginning 

Figure 1: Cyanobacteria
Figure 2: Rhodospirillum and Rhodopseudomonas 

Figure 3:  Photo taken 26th May

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