Arthrobacter is a genus of Gram-positive bacteria known for its unique rod-coccus life cycle and its ability to thrive in diverse environments. These bacteria are notable for their role in soil health and bioremediation.
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Arthrobacter undergoes a distinctive rod-coccus growth cycle, transitioning from rod-shaped cells during exponential growth to coccoid cells in the stationary phase.
They are obligate aerobes and are commonly found in soil, where they play a crucial role in nutrient cycling.
Arthrobacter species are known for their resilience to environmental stresses, including desiccation and radiation.
These bacteria have been studied for their potential in bioremediation due to their ability to degrade pollutants such as pesticides and heavy metals.
The genus Arthrobacter is characterized by high G+C content in their DNA.
Review Questions
What is the significance of the rod-coccus growth cycle in Arthrobacter?
How do Arthrobacter species contribute to soil health?
Why are Arthrobacter species considered important for bioremediation?
Related terms
Gram-Positive Bacteria: Bacteria that have a thick peptidoglycan cell wall and retain the crystal violet stain used in the Gram staining procedure.