Hydroxamate siderophores of the ectomycorrhizal fungi Suillus granulatus and S. luteus

@article{Haselwandter2011HydroxamateSO,
  title={Hydroxamate siderophores of the ectomycorrhizal fungi Suillus granulatus and S. luteus},
  author={Kurt Haselwandter and Gerlinde H{\"a}ninger and Markus Ganzera},
  journal={BioMetals},
  year={2011},
  volume={24},
  pages={153-157}
}
Despite indications that S. granulatus and S. luteus release iron-chelating compounds, the exact spectrum of ferric hydroxamates synthesized by these two Suillus species remained unclear. Hence the aim of this study was to identify all of the main siderophores produced by these two ectomycorrhizal fungal species under pure culture conditions. By means of HPLC and LC–MS analyses we show that S. granulatus releases cyclic and linear fusigen, ferrichrome, coprogen and triacetylfusarinine C into… 

Linear fusigen as the major hydroxamate siderophore of the ectomycorrhizal Basidiomycota Laccaria laccata and Laccaria bicolor

The production of large amounts of linear fusigen by these basidiomycetous mycorrhizal fungi may possibly explain the observed suppression of plant pathogenic Fusarium species.

A Highly Conserved Basidiomycete Peptide Synthetase Produces a Trimeric Hydroxamate Siderophore

The results on the amino acid substrate preference of CsNPS2 support a further understanding of the substrate selectivity of fungal adenylation domains and highlight the Aspergillus niger/SM-Xpress-based system as a suitable platform to heterologously express multimodular basidiomycete biosynthesis enzymes in the >250-kDa range in soluble and active form.

Ectomycorrhizal inoculation with edible fungi increases plant growth and nutrient contents of Pinus ayacahuite

This is the first report on the effect on growth and nutrient mobilization by ectomycorrhizae in P. ayacahuite ; and one of the first reports on Fe mobilization in gymnosperms by ectomercrhizal fungi.

An insight into the iron acquisition and homeostasis in Aureobasidium melanogenum HN6.2 strain through genome mining and transcriptome analysis

This study presents the first genetic blueprint of iron acquisition and homeostasis for A. melanogenum, a unique yeast strain who can produce the siderophore of fusigen under iron starvation to guarantee its survival.

oN the Growth AN d ChelAtiNG-CoMpou Nd produC tioN oF three eCtoMy CorrhiZAl Fu NGi Á NGelA MAChu CA, dAvid N Avi As, AdriANe M. F. MilAGres, dANiel ChÁ veZ and y udith Guillé N

Among fungi collected from uncontaminated sites it was possible to found ecotypes tolerant to high metal concentrations and also producers of siderophoretype chelating compounds.

The fate of siderophores: antagonistic environmental interactions in exudate-mediated micronutrient uptake

A complete understanding of the factors that contribute to metal uptake in nature will require a concerted effort to study processes identified in laboratory systems in the context of more complicated environmental systems.

Fractionation and assimilation of Mg isotopes by fungi is species dependent.

The results are consistent with the idea that ectomycorrhizal fungi have evolved efficient mechanisms to mobilize, transport and store Mg within their mycelia.

Siderophores in plant root tissue: Tagetes patula nana colonized by the arbuscular mycorrhizal fungus Gigaspora margarita

HPLC analyses of aqueous extracts from plant roots have provided clear evidence for the presence of a rhizoferrin type siderophore, named glomuferrin, in root tissue of mycorrhizal seedlings, indicating that the biosynthesis of rhiz oferrintype siders may be widespread in the AM symbiosis.

Biodegradable siderophores: survey on their production, chelating and complexing properties

This is a concise and complete review article of the current and previous relevant studies conducted in the field of production, purification of siderophore compounds and their metal complexes, and their roles in biology and medicine.

References

SHOWING 1-10 OF 30 REFERENCES

Degradation Pathway and Generation of Monohydroxamic Acids from the Trihydroxamate Siderophore Deferrioxamine B

The metabolism of the trihydroxamic acid siderophore deferrioxamine B by a Mesorhizobium loti isolated from soil was investigated and the pathway by which the compound is cleaved into its constituent monohydroxamates was examined.

Ecology of siderophores with special reference to the fungi

The chemical stability of fungal siderophores is an important aspect of microbial life in soil and in the rhizosphere, and insolubility of iron in the environment is counteracted by dissolution and chelation through organic acids and sidersophores by various fungi.

High-performance liquid chromatography of siderophores from fungi

SummaryA reversed-phase HPLC separation of iron(III) chelates of 16 representative fungal siderophores including ferrichromes, coprogens and triacetylfusarinine C was established in order to

Oxalate and ferricrocin exudation by the extramatrical mycelium of an ectomycorrhizal fungus in symbiosis with Pinus sylvestris.

The results suggest that hyphal exudation may alter the chemical conditions of soil microsites and affect mineral dissolution in ectomycorrhizal fungi, and indicated that oxalate exudations may be a significant carbon sink.

Degradation of desferrioxamines by Azospirillum irakense: Assignment of metabolites by HPLC/electrospray mass spectrometry

High substrate specificity of the desferrioxamine hydrolase in A. irakense species is indicated, indicating high substrate specificity in the ability of this species to degrade desferRIoxamine type siderophores.

Ferricrocin - an ectomycorrhizal siderophore of Cenococcum geophilum

The ectomycorrhizal fungus Cenococcum geophilum was grown in low-iron medium and the excreted siderophores were extracted, purified and analyzed by HPLC. The principal hydroxamate siderophore

Quantification of Hydroxamate Siderophores in Soil Solutions of Podzolic Soil Profiles in Sweden

As with the dissolved organic carbon and low molecular mass organic acids, the highest concentrations of the siderophores were found in the upper layers i.e. the mor layer, the eluvial and upper illuvial horizons.

Structure and function of siderophores produced by mycorrhizal fungi

Abstract Most fungi synthesize siderophores as chelating agents which form soluble complexes with Fe3+ with very high stability constants, thus solubilizing ferric Fe. Ericoid mycorrhizal fungi