I am in the middle of writing a thesis about SMs, arbuscular mycorrhizal fungi and the underground mycelium network. I am still in the research phase of my thesis but any knowledge you may have or if you can point me in the right direction for help.
Although , AMF initially suppresses the defense response of the host, it later primes the host for better defense against biotic and abiotic stresses by reprogramming the biosynthesis of secondary metabolites. Additionally, the influence of AMF on signaling pathways translates to enhanced phytochemical content through the upregulation of the phenylpropanoid pathway, which improves the quality of the plant products. These phytometabolome changes induced by plant-AMF interaction depends on the identity of both plant and AMF species, which could contribute to the differential outcome of this symbiotic association. A better understanding of the phytochemical landscape shaped by plant-AMF interactions would enable us to harness this symbiotic association to enhance plant performance, particularly under non-optimal growing conditions.Source :. 2020 Aug 18;10(8):335.Metabolites
doi: 10.3390/metabo10080335.
But , it would be more meaningful ,if the discussion targeted towards a psecific biotic stress...
Most of fungi produce secondary metabolites like antibiotics, toxins and some other types of secondary metabolites which help them to complete their life cycle and stay life in the environment.
Some other secondary metabolites such as Phloroglucinol, 14-labdadiene, Cytochalasin D, Coriloxin, Engleromycin acetate, (S)-mellein, N-acetyl-MY336-a, (3E)-4-(3'-acetyl-2',6'-dihydroxy-5'-methylphenyl)-2-methoxybut-3-enoic acid, 8β,17-epoxy-7β-hydroxy-12E, and (3R,4R)-4-hydroxymellein also, produced by some fungi.
For example, the fungus Penicillium notatum produces the famous antibiotic namely penicillin which used as an antibiotic for human. So, this antibiotic considered as a secondary metabolite.
Mycotoxins are toxic secondary metabolites naturally produced by certain types of moulds (fungi). Moulds that can produce mycotoxins grow on numerous foodstuffs such as cereals, dried fruits, nuts and spices. ... Mycotoxins appear in the food chain as a result of mould infection of crops both before and after harvest. https://www.who.int/news-room/fact-sheets/detail/mycotoxins
Fungal Secondary Metabolites. Fungal SMs can be divided into four main chemical classes: polyketides, terpenoids, shikimic acid derived compounds, and non-ribosomal peptides. ... and Histoplasma capsulatum have a lower number of PKSs (1–9 genes), NRPS (3–6 genes) and PKS-NRPSs (0–2 genes) than other ascomycetes. https://www.frontiersin.org/articles/10.3389/fpls.2015.00573/full
Hi Theodore Holmes . See the link: https://www.nature.com/articles/s41579-018-0121-1
See also the following RG link: Article Relationship between Secondary Metabolism and Fungal Development
Filamentous fungi have long been known for their ability to produce an enormous range of unusual chemical compounds known as secondary metabolites, many of which have potentially useful antibiotic or pharmacological properties..
Also see the following link: https://www.accessscience.com/content/fungal-secondary-metabolites/YB100063
Kindly see also the following link: https://www.sciencedirect.com/science/article/pii/S175450480900083X
Also see this link
Article Succession of endophytic fungi and arbuscular mycorrhizal fu...
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