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Updated by 223005557 on Feb 26, 2025
Headline for Streptomyces avermitilis - Your local pest control
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Streptomyces avermitilis - Your local pest control

The bacterium I have chosen to adopt is the 𝘚𝘵𝘳𝘦𝘱𝘵𝘰𝘮𝘺𝘤𝘦𝘴 𝘢𝘷𝘦𝘳𝘮𝘪𝘵𝘪𝘭𝘪𝘴, also known as the avermectin-producing bacteria, which mostly resides in soil and has an interesting mycelium structure.

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Terrestrial environments

Terrestrial environments

𝑆𝑡𝑟𝑒𝑝𝑡𝑜𝑚𝑦𝑐𝑒𝑠 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 can be found in almost any kind of terrestrial environment from the desert to agricultural lands and are often found in slightly acidic soil.

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Streptomyces avermitilis

Streptomyces avermitilis

𝑆. 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 are from the Streptomycetaceae family which are a part of the phylum Actinomycetota (i.e. Actinobacteria).

Potential applications of Streptomyces avermitilis

Antiparasitic agents are produced by the second metabolic process which involves fermentation. These agents are then used to create anti-parasite treatments for both animals and human in order to treat parasitic infections. They are also utilized to create natural insecticides that could protect agricultural produce against insects and parasites.

Roles in nature

In nature 𝑆𝑡𝑟𝑒𝑝𝑡𝑜𝑚𝑦𝑐𝑒𝑠 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 often form symbiotic relationships with plants as they help promote growth and protect the plant from harmful parasites and insects.

Food source

𝑆. 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 primarily consume simple sugars like glucose and require nutrients such as nitrogen and phosphorus. Additionally 𝑆. 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 are saprophytes which means that they consume dead organic matter hence serving as natural fertilizers.

Avermectin.

Avermectins are a group of drugs that contain semi-synthetic or naturally occurring macrocyclic lactone derivatives called avermectin B1a and B1b. which are products of 𝑆𝑡𝑟𝑒𝑝𝑡𝑜𝑚𝑦𝑐𝑒𝑠 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠
fermentation.

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Morphology

Morphology

𝑆𝑡𝑟𝑒𝑝𝑡𝑜𝑚𝑦𝑐𝑒𝑠 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 are rod shaped, gram positive, filamentous bacteria with a brown pigment and single linear chromosomes instead of circular ones usually found in other bacteria. They form vegetative, well developed, complex mycelia composed of filamentous hyphae, aerial hyphae and spores. They produce smooth colonies.

Challenges

The main issues with the utilization of 𝑆𝑡𝑟𝑒𝑝𝑡𝑜𝑚𝑦𝑐𝑒𝑠 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 is that Avermectins are extremely expensive to produce, as the production process can be very complex. A solution to these issues is to create a new strain of 𝑆𝑡𝑟𝑒𝑝𝑡𝑜𝑚𝑦𝑐𝑒𝑠 𝑎𝑣𝑒𝑟𝑚𝑖𝑡𝑖𝑙𝑖𝑠 to extract product from that requires less maintenance