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, 8 April 2016

Universidad Cádiz_Grupo A6A3_Entry 3: Day 35- A bottle of many colours

Hey readers

 The bottles present the same types of microorganism, but start to take a different appearance. We will state these changes along the way..
 The algae that were located around the surface of the water has dried up and died, due to us modifying the water level 3 weeks ago. The snails are still alive and coexist with a new type of green algae that has popped up. This recently-appeared microorganism has inhabited the centre part of the soil’s surface. We think that the reason it wasn’t visible the last time we checked the bottles was because it takes longer to grow and reproduce itself than the others. The white algae have grown, especially on the side where the bottle receives direct sunlight.
  - S1, the “Sunny Side” includes a green sulphur reducing bacteria, with a darker colour than the algae mentioned before. We suppose it uses the air trapped in the soil to breath. The “Dark Side” is completely orange, with a few patches of black clusters of FeS.
   - S2, the region with direct sunlight shows a considerable amount of green bacteria. However, the other side hasn’t presented any differences from last time

  - S3, the orange zone has also extended here, taking up a larger percentage of the luminous part of the bottle. The opposite side has turned almost completely black.

1 comment:

  1. Green sulfur bacteria usually live within an anaerobic zone where H2S is produced. Did you check the winogradsky column we have in the lab to see if they are greel sulfur bacteria or cyanobacteria?

    What exactly is the air trapped in the soil? Where did it come from? Did you not tap the bottle while you where preparing it?

    Can you remind us what you added in the columns?