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1.
Nat Prod Rep ; 39(5): 1045-1065, 2022 05 26.
Artigo em Inglês | MEDLINE | ID: mdl-35315462

RESUMO

Covering: up to end of January 2022Bacteria representing the phylum Bacteroidetes produce a diverse range of natural products, including polyketides, peptides and lactams. Here, we discuss unique aspects of the bioactive compounds discovered thus far, and the corresponding biosynthetic pathways if known, providing a comprehensive overview of the Bacteroidetes as a natural product reservoir.


Assuntos
Produtos Biológicos , Policetídeos , Bacteroidetes/metabolismo , Produtos Biológicos/química , Vias Biossintéticas , Peptídeos/química , Policetídeos/metabolismo
2.
Chembiochem ; 23(10): e202100698, 2022 05 18.
Artigo em Inglês | MEDLINE | ID: mdl-35298064

RESUMO

Termites live in a dynamic environment where colony health is strongly influenced by surrounding microbes. However, little is known about the mycobiomes of lower termites and their nests, and how these change in response to disease. Here we compared the individual and nest mycobiomes of a healthy subterranean termite colony (Coptotermes testaceus) to one infected and ultimately eradicated by a fungal pathogen. We identified Trichoderma species in the materials of both nests, but they were also abundant in the infected termites. Methanolic extracts of Trichoderma sp. FHG000531, isolated from the infected nest, were screened for secondary metabolites by UHPLC-HR MS/MS-guided molecular networking. We identified many bioactive compounds with potential roles in the eradication of the infected colony, as well as a cluster of six unknown peptides. The novel peptide FE011 was isolated and characterized by NMR spectroscopy. The function of this novel peptide family as well as the role of Trichoderma species in dying termite colonies therefore requires further investigation.


Assuntos
Isópteros , Micobioma , Trichoderma , Animais , Isópteros/microbiologia , Espectrometria de Massas em Tandem
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