Winogradsky column lab page!


File:Icons-flag-uk.png
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 22 April 2016

2.-UCA_10B_1: Day 14


Sediments from the San Pedro river + 1g CaSO4



After two weeks two distinct phases of water and sediment can be seen. In the light face (Photo 1) there is no development of colonies at the first sight , while in the no light face (Photo 2), we can see different types of colonies with different sizes, punctate and black color. At this face it is also possible to see an orange delimitation separating the illuminated face from the dark one. Sediments are greyish on the part that does not receive light and brown on the other. In the water phase numerous fine filaments have developed. When we compared it with the bottle that is in the dark, we realized that this also presents two distinct phases, but water is much murkier than the other. The sand is greyish and it presents many more colonies. It is also possible to observe orange tones as in the case of the bottle exposed to light, but this time is on the sediment surface.



2 comments:

  1. What produces all the different colours?

    ReplyDelete
  2. I see that the rusty colour is developed in the burrow walls of the sediment. Any suggestions for this?

    ReplyDelete