Gloeocapsa magma
| Gloeocapsa magma | |
|---|---|
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| Scientific classification | |
| Kingdom: | Bacteria |
| Phylum: | Cyanobacteria |
| Order: | Chroococcales |
| Genus: | Gloeocapsa |
| Species: | G. magma |
| Binomial name | |
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Gloeocapsa magma |
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Gloeocapsa magma is a species of cyanobacteria.
Cyanobacteria are an ancient line of photosynthesizing bacteria, which photolyze water generating oxygen gas. Ancient cyanobacteria were ancestral to the chloroplasts of all plants on earth. Gloeocapsa magma may resemble "algae" in that they are green, but in fact cyanobacteria are bacteria whereas algae are single-celled eukaryotes (cells with nuclei) that are closely related to plants.
Gloeocapsa magma has gained notoriety in the Southeastern United States, but, it is also spreading throughout the Midwest. This particular type of cyanobacteria is responsible for creating black stains and streaks on roofs. The bacteria accumulate over time as it feeds on moisture and calcium carbonate. This accumulation begins to show the black stains as the cyanobacteria develop their dark and hard UV-protective outer coating.
The main reasons for the rapid spread and noticeability of these cyanobacteria are thought to be:
Once the bacteria have become noticeable, the stains will continue to worsen year to year. As the bacterial colony grows, gravity pulls it downward, resulting in the smear-like stain down roofs. Most "experts" within the subject area conclude the bacteria to be harmful, if left untreated, as the growth holds moisture within shingles causing premature aging, rotting, and/or granule loss.
The buildup of Gloeocaspa magma on residential properties has led to earlier roof replacements, lowered property resale values, insurance companies canceling policies and increased utility costs as the black stained roofing draws in more heat.
Treatment
There are many available options for the eradication of Gloeocapsa Magma, the most common being an application of Sodium Hypochlorite as well as Copper Sulfate. The preferred technique of application of these chemicals is low pressure washing. This will avoid costly damage to the structure. Many roof cleaning contractors offer this method of cleaning.[5]
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Wikipedia