ArticleMetallomics : integrated biometal science2023
Chryseochelins-structural characterization of novel citrate-based siderophores produced by plant protecting Chryseobacterium spp.
Article in Metallomics : integrated biometal science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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10 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.
- Cross-tolerance as an ecological paradox: a hypothesis-driven systematic review of Leersia hexandra as both remediator and pathogen reservoir.Oecologia · 2026Pooled it
- Siderophore-metal complexes in Paraburkholderia phymatum: structure elucidation of phymabactin.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026Article
- Development of a chemotactic SynCom bioorganic fertilizer for biocontrol of bacterial wilt in tobacco fields.Applied microbiology and biotechnology · 2025Article
- The Siderophore Phymabactin Facilitates the Growth of the Legume SymbiontLife (Basel, Switzerland) · 2025Article
- Intercellular sphingolipid signaling mediates aversive learning in C. elegans.Current biology : CB · 2025Article
- Siderophore synthetase-receptor gene coevolution reveals habitat- and pathogen-specific bacterial iron interaction networks.Science advances · 2025Article
- Microbial Siderophores: A New Insight on Healthcare Applications.BME frontiers · 2025Review
- A Practical Toolkit for the Detection, Isolation, Quantification, and Characterization of Siderophores and Metallophores in Microorganisms.ACS omega · 2024Review
- Bacterial wilt affects the structure and assembly of microbial communities along the soil-root continuum.Environmental microbiome · 2024Article
- Competition for iron shapes metabolic antagonism between Bacillus subtilis and Pseudomonas marginalis.The ISME journal · 2024Article
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Authors and funding
7 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bacteria secrete siderophores whose function is to acquire iron. In recent years, the siderophores of several Chryseobacterium species were shown to promote the health and growth of various plants such as tomato or rice. However, the chemical nature of Chryseobacterium siderophores remained unexplored despite great interest. In this work, we present the purification and structure elucidation by nuclear magnetic resonance (NMR) spectroscopy and tandem mass spectrometry (MS/MS) of chryseochelin A, a novel citrate-based siderophore secreted by three Chryseobacterium strains involved in plant protection. It contains the unusual building blocks 3-hydroxycadaverine and fumaric acid. Furthermore, the unstable structural isomer chryseochelin B and its stable derivative containing fatty acid chains, named chryseochelin C, were identified by mass spectrometric methods. The latter two incorporate an unusual ester connectivity to the citrate moiety showing similarities to achromobactin from the plant pathogen Dickeya dadantii. Finally, we show that chryseochelin A acts in a concentration-dependent manner against the plant-pathogenic Ralstonia solanacearum strain by reducing its access to iron. Thus, our study provides valuable knowledge about the siderophores of Chryseobacterium strains, which have great potential in various applications.
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