Phenotypic Variation 1. What was the effect of medium type on pigmentation in strain 30-84 and 30-847? What is the difference between these strains? 2. The availability of iron (Fe3+) in the environment is very low (~1 x 10-17 M). Therefore, siderophore production by bacteria can be critical for successful growth in nature. Many bacteria in nature produce siderophores, and often one bacterium will out-compete another bacterium for iron. What could explain this observation? 1111 3. How do skim milk plates allow detection of proteases? How does semi-solid motility agar allow for the detection of motility?

Phenotypic Variation 1. What was the effect of medium type on pigmentation in strain 30-84 and 30-847? What is the difference between these strains? 2. The availability of iron (Fe3+) in the environment is very low (~1 x 10-17 M). Therefore, siderophore production by bacteria can be critical for successful growth in nature. Many bacteria in nature produce siderophores, and often one bacterium will out-compete another bacterium for iron. What could explain this observation? 1111 3. How do skim milk plates allow detection of proteases? How does semi-solid motility agar allow for the detection of motility?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter13: Diversity Of Microbes, Fungi, And Protists

Section: Chapter Questions

Problem 1ACQ: Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell...

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