Manganese(II)-oxidizing Ascomycete fungi experience growth benefit on polyphenolic substrate

Clicks: 11
ID: 320950
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #20 of 77 articles by views in fems microbiology ecology

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Abstract The ability of microorganisms to oxidize manganese (Mn) (II) to Mn(III) is a strong predictor of litter decomposition rates in soils. While white rot Basidiomycete fungi generate reactive Mn(III) to degrade lignin, it remains unclear whether Mn(II) oxidation may provide a physiological benefit to litter-degrading filamentous Ascomycete fungi. We grew 3 Mn(II)-oxidizing Ascomycetes on phenolic and non-phenolic substrates and evaluated growth, Mn(II) oxidation, and carbon (C) degradation. Extracellular Mn(II) oxidative capacity was inducible by Mn(II) in Stagonospora sp. SRC1lsM3a and Pyrenochaeta sp. DS3sAY3a, indicating an active rather than accidental process. Oxidative capacity was constitutively expressed in Paraconiothyrium sporulosum AP3s5-JAC2a. Compared to Mn-free controls, growth with Mn(II) increased hyphal extension rate in all 3 fungi (6.2%, 31%, and 5.1%, respectively) on minimal medium supplemented with 5 g/L of the polyphenolic substrate tannic acid (TA), but not on non-phenolic substrates. Mn(II) stimulated polyphenolic oxidative capacity in Stagonospora sp. and Pyrenochaeta sp., indicating a link between Mn and degradation of TA. This work suggests a homology between Ascomycete and Basidiomycete fungi in coupling Mn(II) oxidation to C oxidation, suggests a physiological role for Mn(II) oxidation in Ascomycetes, and increases our understanding of how microorganisms regulate Mn redox cycling and litter decomposition in soils.
Reference Key
openalex_W7168299362 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Carolyn A Zeiner, Ethan D Lynch, Ruby E Haupt, Elizabeth C Gregroy, Colleen M Hansel, Lydia L Godfrey, Ikechukwu D Anunike, Tyler Dennis, Paighton Holtzleicer, Rhiannon Wilson, Mislael Feliberty, Ella C Stenberg
Journal fems microbiology ecology
Year 2026
DOI
10.1093/femsec/fiag076
URL
https://doi.org/10.1093/femsec/fiag076
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.