Courses - Paris Lodron Universität Salzburg

current teaching

Barrierefreiheit: Kurzbeschreibung des Bildes

Photoquiz

Photo Quiz – Solution

Trinema sp., Cercozoa, Rhizaria; shelled amoeba; occurrence: mosses and soil.
Podocyrtis sp., Polycystina, Rhizaria; Radiolaria; occurrence: marine plankton.
Fragillaria sp., Bacillariophyceae, Stramenopile; colony of diatoms/Bacillariophyceae; occurrence: freshwater plankton.
Dinophysis sp. (during longitudinal cell division), Dinophyceae, Alveolata; dinoflagellate; occurrence: marine plankton.
Paramecium sp., Ciliophora, Alveolata; ciliate; occurrence: freshwater.
Helix pomatia, Gastropoda, Mollusca; snail; occurrence: calcareous substrate in Europe.
Bosmina sp., Cladocera, Crustacea; water fleas; occurrence: freshwater plankton.
Calopteryx virgo, Odonata, Insecta; dragonfly; occurrence: in vicinity to streams in Europe, North Africa, and Western Asia.
Papilio machaon, Lepidoptera, Insecta; butterfly; occurrence: widespread in Europe.
Esox lucius, Osteichthyes, Vertebrata; fish; occurrence: freshwater of Northern Hemisphere.
Micronisus gabar, Aves, Vertebrata; bird; occurrence: Africa and Arabia.
Crocidura russula, Mammalia, Vertebrata; shrew; occurrence: Europe and North Africa.

For introducing students into different topics taught by Assoc.-Prof. Dr. Sabine Agatha, several videos have been produced by the AG Agatha.

Scanning electron microscopy

Elektronenmikroskop

Scanning electron microscopy

Transmission electron microscopy

Transmissionselektronenmikroskop

Transmission electron microscopy

Paramecium sp. in vivo

Paramecium

This ciliate species (Alveolata, Ciliophora, Oligohymenophorea) is one of the best-known ciliates and frequently used as model organism. The video provides a short introduction into the main cell features. The video was made by means of an Olympus SZX16 stereomicroscope and an Olympus BX53 microscope equipped with differential interference optics and an Olympus camera (OM-D E-M1 Mark II).

Paramecium sp. in vivo

Paramecium sp. – feeding experiment with Congo red stained yeast

Paramecium sp. – feeding experiment with Congo red stained yeast

Paramecium sp. is a model organism used here for demonstrating phagocytosis, digestion, and exocytosis. Paramecium cells feed yeast stained with the indicator dye congo red. During digestion, the fusion of acidosomes with the digestive vacuoles cause a drop of the pH which is indicated by a colour change from red to blue in the yeast cells. Afterwards, lysomes with enzymes fuse with the digestive vacuoles. Due to the gradual increase of the pH in the digestive vacuoles, the colour of the yeast changes from blue to red. The video was made by means of an Olympus SZX16 stereomicroscope and an Olympus BX53 microscope equipped with differential interference optics and an Olympus camera (OM-D E-M1 Mark II).

Paramecium sp.

Euplotes daidaleos in vivo and after methyl-green pyronin and Chatton-Lwoff silver nitrate staining

Euplotes

This freshwater euplotid ciliate (Alveolata, Ciliophora, Spirotricha) is characterised by the possession of zoochlorellae. The video provides a short introduction into the main cell features. The video was made by means of an Olympus SZX16 stereomicroscope and an Olympus BX53 microscope equipped with differential interference optics and an Olympus camera (OM-D E-M1 Mark II).

Euplotes daidaleos

Stylonychia pustulata in vivo and after methyl-green pyronin staining

Stylonychia

The video provides a short introduction into the main cell features of the this freshwater hypotrich ciliate (Alveolata, Ciliophora, Spirotricha). The video was made by means of an Olympus SZX16 stereomicroscope and an Olympus BX53 microscope equipped with differential interference optics and an Olympus camera (OM-D E-M1 Mark II).

Stylonychia pustulata

Halteria grandinella in vivo and after methyl-green pyronin staining

Halteria

Halteria grandinella

Stentor polymorphus in vivo and after methyl-green pyronin staining

Stentor

Stentor polymorphus

Helix pomatia (Weinbergschnecke) – Preparation

Helix pomatia

Utermöhl chamber

Utermöhl chamber

Analyses of Utermöhl chamber

Analyses of Utermöhl

Analyses of Utermöhl chamber

Permanent Slides with Testate Amoebae

testate Amoebae

Permanent Slides

Permanent Slides with Radiolaria

Radiolaria

Permanent Slides with Radiolaria

Permanent Slides with Foraminifera

Foraminifera

Permanent Slides with Foraminifera

Life cycle stages of Plasmodium

Plasmodium

Life cycle stages of Plasmodium

Life cycle stages of Trypanosoma

Trypanosoma

Life cycle stages of Trypanosoma

„Microscopic Life in Soil“ Unterrichtseinheiten für die 6. Klasse AHS Oberstufe konzipiert von Frau Mag. rer. nat. Susanne Riedl

Microscopic life in soil

Protozoen beeinflussen die Bodenfruchtbarkeit und somit die Nahrungsverfügbarkeit für den Menschen, indirekt über den Einfluss auf die Bakterienpopulation, die Hauptzersetzer der Streu, und direkt durch die Abgaben von Stickstoffverbindungen. Im Gegensatz zu Schulbüchern, welche sich üblicherweise auf Metazoen fokussieren und dabei die Protozoen außer Acht lassen, führt die vorliegende Diplomarbeit Unterrichtseinheiten ein, welche sich auf die spezifischen Anpassungen an den ephemeren Charakter des Bodens sowohl der Protozoen als auch der Metazoen konzentrieren und einen vereinfachten Einblick in das Bodennahrungsnetz liefern. Trotz ihrer mikroskopischen Größe sind Protozoen, insbesondere Ciliaten, einfach zu handhaben und liefern genügend morphologische Kennzeichen zur Unterscheidung der Hauptgruppen. Dementsprechend ist es für die Schülerinnen und Schüler möglich, ihre eigenen Hypothesen in den praktischen Einheiten bezüglich der Sukzession, des Nahrungsnetzes, dem Einfluss von Streu und der Wasserverfügbarkeit auf die Abundanz der Protozoen im Boden zu prüfen. Durch die Abdeckung dieser Themen fügen sich die Einheiten nicht nur perfekt in den Lehrplan der österreichischen höheren Schulen, sondern bieten auch die Möglichkeit eines aktiven und anschaulichen Erwerbens von Wissen und Kompetenzen. Mit Ausnahme der Mikroskope sind die Utensilien für die Einheiten kostengünstig und einfach zu beschaffen; die überwiegend angewandte Methode ist die „non-flooded petri dish“ Technik.

teaching materials