The Effects Of Uv Light Protection On The Microbial Populations Essay

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A small amount of research has been conducted on air as a habitat compared to other environments such as soil, water, and sediments (1). Air makes up the atmosphere and is composed of approximately 78% nitrogen, 21% oxygen, .93 % argon, and .038% carbon dioxide (http://www.space.com/17683-earth-atmosphere.html). In addition, air carries dust particles, pollutants and plant grains. Air presents a hostile environment for the sustaining of metabolically active and reproducing microbes. The air is composed of UV radiation, which results in the development of UV light protection in the microbial populations that reside in this environment (1). Due to the conditions of air, microbes that inhabit air are capable of adapting to wider pH ranges. They are also capable of living in a wide range of temperatures due to varying altitudes (1). A majority of microbes that inhabit the air are in the Proteobacteria, Firmicutes, and Actinobacteria phylum. These microbes include, Pseudomonas syringae, Pantoea agglomerans, Propionibacterium acnes, Agrobacterium tumefaciens and Sphingomonas echnoides (2).

A majority of the diversity of air is misunderstood by ecologist. Yet, the limited amount of research conducted on the diversity of the atmosphere supports that air is highly diverse. Samples taken from the atmosphere were dominated by plant and bacteria related sequences, indicating a highly variable 16sRNA gene diversity (2). When samples are taken from the atmosphere, there is a trend of a
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