Testacosides A-D, glycoglycerolipids produced by Microbacterium testaceum isolated from Tedania brasiliensis

© 2024. The Author(s)..

Marine bacteria living in association with marine sponges have proven to be a reliable source of biologically active secondary metabolites. However, no studies have yet reported natural products from Microbacterium testaceum spp. We herein report the isolation of a M. testaceum strain from the sponge Tedania brasiliensis. Molecular networking analysis of bioactive pre-fractionated extracts from culture media of M. testaceum enabled the discovery of testacosides A-D. Analysis of spectroscopic data and chemical derivatizations allowed the identification of testacosides A-D as glycoglycerolipids bearing a 1-[α-glucopyranosyl-(1 → 3)-(α-mannopyranosyl)]-glycerol moiety connected to 12-methyltetradecanoic acid for testacoside A (1), 14-methylpentadecanoic acid for testacoside B (2), and 14-methylhexadecanoic acid for testacosides C (3) and D (4). The absolute configuration of the monosaccharide residues was determined by 1H-NMR analysis of the respective diastereomeric thiazolidine derivatives. This is the first report of natural products isolated from cultures of M. testaceum. KEY POINTS: • The first report of metabolites produced by Microbacterium testaceum. • 1-[α-Glucopyranosyl-(1 → 3)-(α-mannopyranosyl)]-glycerol lipids isolated and identified. • Microbacterium testaceum strain isolated from the sponge Tedania brasiliensis.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:108

Enthalten in:

Applied microbiology and biotechnology - 108(2024), 1 vom: 12. Jan., Seite 112

Sprache:

Englisch

Beteiligte Personen:

Quintana-Bulla, Jairo I [VerfasserIn]
Tonon, Luciane A C [VerfasserIn]
Michaliski, Lamonielli F [VerfasserIn]
Hajdu, Eduardo [VerfasserIn]
Ferreira, Antonio G [VerfasserIn]
Berlinck, Roberto G S [VerfasserIn]

Links:

Volltext

Themen:

Biological Products
Glycerol
Glycerolglycolipids
Glycoglycerolipids
Glycolipids
Journal Article
Marine bacteria
Molecular networking
PDC6A3C0OX

Anmerkungen:

Date Completed 15.01.2024

Date Revised 19.01.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s00253-023-12870-0

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367078031