The isolation and characterisation of a novel siderophore from the marine bacterium Thalassomonas viridans
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Date
2022
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Publisher
University of the Western Cape
Abstract
Natural products (NPs) produced by bacteria, fungi, plants, and marine animals include a large group of diverse chemical entities that display a broad range of biological activities. NPs are widely used for various applications, particularly in the fields of agriculture and medicine. Siderophores are a type of NP produced by various microorganisms to scavenge iron from the environment. They are characterised as low-molecular-mass (500-1500 Da) free ligands with a high affinity for iron. In recent years, organisms inhabiting the world’s oceans have moved into the spotlight of NP discovery studies.
Thalassomonas viridans is a strictly aerobic, halophilic, chemo-organotrophic marine bacterium that was first isolated from cultivated oysters off the Mediterranean coast of Spain. When tested, this organism was seen to produce siderophores when grown under iron-limited conditions. Chemical characterisation tests were able to deem the siderophore as a carboxylate type. No antimicrobial activity was seen by the purified siderophore. It was determined that the siderophore is able to bind both iron and aluminium, but not vanadium or arsenic.
Description
>Magister Scientiae - MSc
Keywords
Marine animal, Micro-organism, Fungi, Agriculture, Medicine