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Introduction
Introduction
The organism P. ramosa is a bacterial parasite and a pathogen that are extremely sensitive to light as discovered in the primary article(Erin P Overholt)
P. ramosa depend on infecting a host to grow and reproduce, they cannot do it on their own(Erin P Overholt)
They are mostly found in a variety of fresh water bodies.(Erin P Overholt)
Background
Background
Often found in freshwater lake systems(“Pasteuria.”)
Thrive and reproduce through infecting hosts such as D. dentifera, D. pulex, and D. lonsipina(“Pasteuria.”)
Scientists understood that light can harm the functioning of microbes, while others thrive in light exposure. (“Pasteuria.”)
Climate change is changing the light withing environment's. This is causing changes that may harm pathogens.(“Pasteuria.”)
Experiments are needed to see how the hosts respond to different light exposures and to study disease dynamics in those conditions (“Pasteuria.”)
Taxonomy
Kingdom: Bacteria
Phylum: Bacillota
Class:Bacillin
Order: Bacillales
Family: Pasteuriaceae
Genus: Pasteiria
Species: P. Ramosa
Binomial Name: Pasteuria ramosa
Data Analysis
Data Analysis
Scientists measured the pathogen infectivity and host reproduction in Daphnia dentiform by putting P. ramosa into different light exposures. Each dish had 25ml of P. Ramosa were put on a moving wheel for 12 Hours. They were exposed to different UV light exposures but all were in the same temperature.(Erin P Overholt)
After a week, One Daphnia dentiform was put in each dish along with the exposed P. ramosa. Three days after that they were put back in filtered lake water. 25 days later they were examined for infection.(Erin P Overholt)
Light exposure decreased parasite infectivity, all forms of light exposure had the highest infection rate in 0% light(Erin P Overholt)
Conclusion
Conclusion
Scientists concluded that P. ramosa are highly sensitive to higher wavelengths and visible light. This is beneficial for Daphnia because it decreased the rate of infection. They were able to produce more offspring because of this(Erin P Overholt)
They concluded that the common bacterial pathogen P. ramosa is negativly affected by UV and visible light. (Erin P Overholt)
References
References
Erin P Overholt, Meghan A Duffy, Matthew P Meeks, Taylor H Leach, Craig E
Williamson, Light exposure decreases infectivity of
the Daphnia parasite Pasteuria ramosa, Journal of Plankton Research,
Volume 42, Issue 1, January 2020, Pages 41–44
“Pasteuria.” Pasteuria - an Overview | ScienceDirect Topics,
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