FSCN 2021 Lecture Notes - Lecture 3: Banded Iron Formation, Petri Dish, Louis Pasteur
24 Feb 2019
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Crystals were formed when wine encountered fluctuation of temperatures. How to prevent spoilage of beer, wine, milk. Discovered antibodies could be produced to infectious diseases. Sealed glass vessels to show that no organisms appeared. Air sterilized did not allow organisms to appear. Developed solid media, petri dish, steam sterilization. Created his postulates to confirm the infectious nature of diseases. Isolated tissues of a dead animal, and injected into healthy mouse until the disease is reproduced (able to isolate, culture and reinfect another animal) Bifs (banded iron formations) cannot be just naturally created- must be created by a microorganism. Bacteria- 2 million years ago which get energy by using elements like iron and sulfur. Amber: fossilized tree sap (30-35 million years old)/45/120. Halotolerant bacteria from a primary salt crystal. Putting organisms into categories (taxa) based on shared physical characteristics. Classified over 12,000 species of plants and animals in systema natura.
