ArticleExtremophiles : life under extreme conditions2018
Corrosive extracellular polysaccharides of the rock-inhabiting model fungus Knufia petricola.
Article in Extremophiles : life under extreme conditions, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 43 citations in OpenAlex.
- Analysis of Microbial Communities and Microbial Preservation of the Qilin Screen Wall and Text Brick Wall in the Jinshanling Great Wall.Microorganisms · 2026Article
- Fungi and Stone Heritage Conservation: Friend, Foe, or a Bit of Both.Journal of fungi (Basel, Switzerland) · 2026Review
- Genomic Insights Into Convergent Evolution: Adaptation to Rocky Habitats in Rock-Inhabiting Fungi.Molecular biology and evolution · 2025Article
- Integrative analysis of transcriptome and metabolome profiling uncovers underlying mechanisms of the enhancement of the synthesis of biofilm in Sporobolomyces pararoseus NGR under acidic conditions.Microbial cell factories · 2025Article
- Deletion of the polyketide synthase-encoding gene pks1 prevents melanization in the extremophilic fungus Cryomyces antarcticus.IUBMB life · 2024Article
- The Tet-on system for controllable gene expression in the rock-inhabiting black fungus Knufia petricola.Extremophiles : life under extreme conditions · 2024Article
- Fungal biodeterioration and preservation of cultural heritage, artwork, and historical artifacts: extremophily and adaptation.Microbiology and molecular biology reviews : MMBR · 2024Review
- The First Description of the Microbial Diversity in the Amarillo River (La Rioja, Argentina), a Natural Extreme Environment Where the Whole Microbial Community Paints the Landscape Yellow.Microorganisms · 2024Article
- Impacts of Continuous Cropping on Fungal Communities in the Rhizosphere Soil of Tibetan Barley.Frontiers in microbiology · 2022Article
- Genetic Engineering of the Rock InhabitantFrontiers in fungal biology · 2022Article
- Review
- An Overview of Genomics, Phylogenomics and Proteomics Approaches in Ascomycota.Life (Basel, Switzerland) · 2020Review
- An advanced genetic toolkit for exploring the biology of the rock-inhabiting black fungus Knufia petricola.Scientific reports · 2020Article
- A review of the nature, role and control of lithobionts on stone cultural heritage: weighing-up and managing biodeterioration and bioprotection.World journal of microbiology & biotechnology · 2020Review
- The Third International Symposium on Fungal Stress - ISFUS.Fungal biology · 2020Article
- The role of polymers in cross-kingdom bioadhesion.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Review
- High-Quality Draft Genome Sequence of the Microcolonial Black Fungus Aeminium ludgeri DSM 106916.Microbiology resource announcements · 2019Article
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Melanised cell walls and extracellular polymeric matrices protect rock-inhabiting microcolonial fungi from hostile environmental conditions. How extracellular polymeric substances (EPS) perform this protective role was investigated by following development of the model microcolonial black fungus Knufia petricola A95 grown as a sub-aerial biofilm. Extracellular substances were extracted with NaOH/formaldehyde and the structures of two excreted polymers studied by methylation as well as NMR analyses. The main polysaccharide (~ 80%) was pullulan, also known as α-1,4-; α-1,6-glucan, with different degrees of polymerisation. Αlpha-(1,4)-linked-Glcp and α-(1,6)-linked-Glcp were present in the molar ratios of 2:1. A branched galactofuromannan with an α-(1,2)-linked Manp main chain and a β-(1,6)-linked Galf side chain formed a minor fraction (~ 20%). To further understand the roles of EPS in the weathering of minerals and rocks, viscosity along with corrosive properties were studied using atomic force microscopy (AFM). The kinetic viscosity of extracellular K. petricola A95 polysaccharides (≈ 0.97 × 10
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