Pub Date : 2026-01-29DOI: 10.1016/j.funeco.2026.101498
Alex C. Maisey , Lucie Semenec , Eleonora Egidi , Angie Haslem , Andrew F. Bennett
Animals that disturb soil – bioturbators and ecosystem engineers – influence soil fungal communities by altering the litter, soil structure, and microclimates. They can also consume fungi and disperse fungal spores. We tested whether foraging by the superb lyrebird Menura novaehollandiae, a prolific soil-disturbing passerine, affects soil fungal composition, richness, and diversity. Across three forest types in south-eastern Australia, we applied replicated experimental treatments (lyrebird exclusion, simulated lyrebird foraging, access by lyrebirds) and sampled fungal communities over two years using ITS amplicon sequencing. Fungal composition varied strongly between forest types, despite close spatial proximity, with rainforest soils showing lower richness but higher diversity. However, cessation of lyrebird foraging had no detectable short-term effect on fungal communities over the two-year study. This is likely due to a time-lag in fungal communities responding to altered conditions, especially given a legacy of adaptation to patchy disturbance by lyrebirds over millennia. Our work highlights the need for longer-term studies to uncover the effects of animal-driven soil turnover on fungal community composition and maintenance.
{"title":"Soil fungal communities differ among forest types but show limited response to cessation of ecosystem engineering by the superb Lyrebird (Menura novaehollandiae)","authors":"Alex C. Maisey , Lucie Semenec , Eleonora Egidi , Angie Haslem , Andrew F. Bennett","doi":"10.1016/j.funeco.2026.101498","DOIUrl":"10.1016/j.funeco.2026.101498","url":null,"abstract":"<div><div>Animals that disturb soil – bioturbators and ecosystem engineers – influence soil fungal communities by altering the litter, soil structure, and microclimates. They can also consume fungi and disperse fungal spores. We tested whether foraging by the superb lyrebird <em>Menura novaehollandiae</em>, a prolific soil-disturbing passerine, affects soil fungal composition, richness, and diversity. Across three forest types in south-eastern Australia, we applied replicated experimental treatments (lyrebird exclusion, simulated lyrebird foraging, access by lyrebirds) and sampled fungal communities over two years using ITS amplicon sequencing. Fungal composition varied strongly between forest types, despite close spatial proximity, with rainforest soils showing lower richness but higher diversity. However, cessation of lyrebird foraging had no detectable short-term effect on fungal communities over the two-year study. This is likely due to a time-lag in fungal communities responding to altered conditions, especially given a legacy of adaptation to patchy disturbance by lyrebirds over millennia. Our work highlights the need for longer-term studies to uncover the effects of animal-driven soil turnover on fungal community composition and maintenance.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"81 ","pages":"Article 101498"},"PeriodicalIF":2.2,"publicationDate":"2026-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146057595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arbuscular mycorrhizal fungi (AMF) live in roots and soil simultaneously and respond to local disturbances. Although it is well established that habitat disturbances affect not only soils but also root-associated fungal communities, how thinning affects root AMF communities of residual trees remains a significant knowledge gap. Here, we clarified the previously unknown cohabitation of persisting root AMF at four 50 × 50 m microsites with different soil properties and subjected to thinning disturbances in a planted forest in Japan. Root and soil samples were collected from 20 Cryptomeria japonica (Japanese cedar, Cupressaceae) trees with and without thinning disturbance for three years. Using Illumina MiSeq metabarcoding, we analyzed AMF cohabitation patterns and persistence in C. japonica roots. We detected Dominikia, Glomus, Microkamienskia, Nanoglomus, Parvocarpum, and Rhizophagus as dominant persistent AMF partners of C. japonica. Their observed significant spatial but not temporal variations were driven by soil pH and C/N. Most importantly, spatiotemporal within-tree rearrangements among these taxa were observed at all microsites. We concluded that cohabitation of persistent root-colonizing AMF occurs over dynamic temporal rearrangements regardless of disturbances, highlighting strong host – symbiont bonds.
{"title":"Persistence of arbuscular mycorrhizal fungi with thinning disturbances and local soil property variation in a planted Cryptomeria japonica forest","authors":"Akotchiffor Kevin Geoffroy Djotan , Norihisa Matsushita , Yosuke Matsuda , Kenji Fukuda","doi":"10.1016/j.funeco.2026.101496","DOIUrl":"10.1016/j.funeco.2026.101496","url":null,"abstract":"<div><div>Arbuscular mycorrhizal fungi (AMF) live in roots and soil simultaneously and respond to local disturbances. Although it is well established that habitat disturbances affect not only soils but also root-associated fungal communities, how thinning affects root AMF communities of residual trees remains a significant knowledge gap. Here, we clarified the previously unknown cohabitation of persisting root AMF at four 50 × 50 m microsites with different soil properties and subjected to thinning disturbances in a planted forest in Japan. Root and soil samples were collected from 20 <em>Cryptomeria japonica</em> (Japanese cedar, Cupressaceae) trees with and without thinning disturbance for three years. Using Illumina MiSeq metabarcoding, we analyzed AMF cohabitation patterns and persistence in <em>C. japonica</em> roots. We detected <em>Dominikia</em>, <em>Glomus</em>, <em>Microkamienskia</em>, <em>Nanoglomus</em>, <em>Parvocarpum</em>, and <em>Rhizophagus</em> as dominant persistent AMF partners of <em>C. japonica</em>. Their observed significant spatial but not temporal variations were driven by soil pH and C/N. Most importantly, spatiotemporal within-tree rearrangements among these taxa were observed at all microsites. We concluded that cohabitation of persistent root-colonizing AMF occurs over dynamic temporal rearrangements regardless of disturbances, highlighting strong host – symbiont bonds.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"80 ","pages":"Article 101496"},"PeriodicalIF":2.2,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-23DOI: 10.1016/j.funeco.2026.101495
Sergio Muriel , Pilar Hurtado , Isabel Martínez , Gregorio Aragón , Luca Di Nuzzo , Renato García , María Prieto
Lichens are bioindicators due to their sensitivity to environmental variables. As key constituents of biological soil crusts in gypsum-rich arid ecosystems, their links to abiotic factors offer insights into ecological processes. We studied lichen community responses to environmental variation in gypsum soils in Spain. Sampling was conducted in 35 plots, estimating lichen cover to quantify taxonomic diversity (TD), calculate functional diversity (FD) assessing and measuring qualitative and quantitative traits, and compute phylogenetic diversity (PD) using a community-level phylogenetic tree. A higher diversity (TD, FD, PD) was found in plots with less extreme temperature conditions. Higher TD, total FD, and FD of quantitative traits were observed in plots with greater precipitation. FD of quantitative traits was positively associated with gypsum content. Functional variability was mostly explained by intraspecific variability except in water-related traits. Our findings reinforce the relevance of trait-based approaches in understanding patterns of lichen biodiversity.
{"title":"Integrating functional, taxonomic, and phylogenetic diversity to explain lichen biocrust responses to edaphic and climatic drivers","authors":"Sergio Muriel , Pilar Hurtado , Isabel Martínez , Gregorio Aragón , Luca Di Nuzzo , Renato García , María Prieto","doi":"10.1016/j.funeco.2026.101495","DOIUrl":"10.1016/j.funeco.2026.101495","url":null,"abstract":"<div><div>Lichens are bioindicators due to their sensitivity to environmental variables. As key constituents of biological soil crusts in gypsum-rich arid ecosystems, their links to abiotic factors offer insights into ecological processes. We studied lichen community responses to environmental variation in gypsum soils in Spain. Sampling was conducted in 35 plots, estimating lichen cover to quantify taxonomic diversity (TD), calculate functional diversity (FD) assessing and measuring qualitative and quantitative traits, and compute phylogenetic diversity (PD) using a community-level phylogenetic tree. A higher diversity (TD, FD, PD) was found in plots with less extreme temperature conditions. Higher TD, total FD, and FD of quantitative traits were observed in plots with greater precipitation. FD of quantitative traits was positively associated with gypsum content. Functional variability was mostly explained by intraspecific variability except in water-related traits. Our findings reinforce the relevance of trait-based approaches in understanding patterns of lichen biodiversity.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"80 ","pages":"Article 101495"},"PeriodicalIF":2.2,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-23DOI: 10.1016/j.funeco.2025.101491
Wenjun Xiong , Lin Xu , Chaonan Li , Changting Wang , Xiangzhen Li
Soil fungal communities play important roles in soil ecological processes. However, biogeographic patterns of soil fungal communities and the underlying mechanisms shaping these patterns are still not fully understood on the Qinghai-Tibet Plateau. We conducted extensive soil sample collections in three regions differing in their aridity with different environmental conditions across an area spanned 2199 km in width and 1249 km in length in the Qinghai-Tibet Plateau (QTP). We investigated the biogeographical patterns of soil fungal diversity and the key factors shaping them. Null model analysis showed that the fungal species turnover processes linked to environmental selection predominantly govern the heterogeneity of fungal communities across the QTP. NDVI, which is primarily influenced by local climate, serves as a direct indicator of fungal community diversity. In arid and hyper-arid regions where the plant community remains stable, alkaline conditions lead to lower fungal species diversity. Conversely, low-pH environments in warm and humid regions were related to higher fungal species diversity. Our findings underscore the pivotal roles of plant and soil pH in response to climate fluctuations on the diversity of soil fungal communities in QTP.
{"title":"Aridity governs biogeographic patterns of soil fungal communities on the Qinghai-Tibet Plateau","authors":"Wenjun Xiong , Lin Xu , Chaonan Li , Changting Wang , Xiangzhen Li","doi":"10.1016/j.funeco.2025.101491","DOIUrl":"10.1016/j.funeco.2025.101491","url":null,"abstract":"<div><div>Soil fungal communities play important roles in soil ecological processes. However, biogeographic patterns of soil fungal communities and the underlying mechanisms shaping these patterns are still not fully understood on the Qinghai-Tibet Plateau. We conducted extensive soil sample collections in three regions differing in their aridity with different environmental conditions across an area spanned 2199 km in width and 1249 km in length in the Qinghai-Tibet Plateau (QTP). We investigated the biogeographical patterns of soil fungal diversity and the key factors shaping them. Null model analysis showed that the fungal species turnover processes linked to environmental selection predominantly govern the heterogeneity of fungal communities across the QTP. NDVI, which is primarily influenced by local climate, serves as a direct indicator of fungal community diversity. In arid and hyper-arid regions where the plant community remains stable, alkaline conditions lead to lower fungal species diversity. Conversely, low-pH environments in warm and humid regions were related to higher fungal species diversity. Our findings underscore the pivotal roles of plant and soil pH in response to climate fluctuations on the diversity of soil fungal communities in QTP.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"80 ","pages":"Article 101491"},"PeriodicalIF":2.2,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-23DOI: 10.1016/j.funeco.2025.101494
Rebecca M. Mader , Keith N. Egger , Olivia Crooks , Matthew J. Smith , Allison K. Walker
Macrofungal community responses to ecosystem disturbances are poorly understood in eastern hemlock (Tsuga canadensis) forests, which are threatened by the invasive hemlock woolly adelgid (Adelges tsugae) in eastern North America. To understand macrofungal community response to adelgid-caused hemlock damage, we studied macrofungal communities before and after an outbreak of pale-winged grey moth (Iridopsis ephyraria)—another insect that can destructively feed on hemlock—in Kejimkujik National Park & National Historic Site (Nova Scotia, Canada) hemlock plots. We compared 920 post-outbreak (2021–2023) and 1197 legacy (1990, 1991, & 1995) fungarium collections (E.C. Smith Herbarium, Acadia University) from the same sites. Collections were identified using ITS rDNA barcoding or morphological characteristics. Thirty-one indicator species were detected in the least damaged plots and greater moth damage corresponded to increased macrofungal community change across plots and over time. This suggests that intensifying adelgid infestations may permanently alter hemlock ecosystems, resulting in the loss of hemlock-preferring macrofungi.
{"title":"Using historic fungarium collections to assess macrofungal community shifts in insect-damaged eastern hemlock (Tsuga canadensis) forests","authors":"Rebecca M. Mader , Keith N. Egger , Olivia Crooks , Matthew J. Smith , Allison K. Walker","doi":"10.1016/j.funeco.2025.101494","DOIUrl":"10.1016/j.funeco.2025.101494","url":null,"abstract":"<div><div>Macrofungal community responses to ecosystem disturbances are poorly understood in eastern hemlock (<em>Tsuga canadensis</em>) forests, which are threatened by the invasive hemlock woolly adelgid (<em>Adelges tsugae</em>) in eastern North America. To understand macrofungal community response to adelgid-caused hemlock damage, we studied macrofungal communities before and after an outbreak of pale-winged grey moth (<em>Iridopsis ephyraria</em>)—another insect that can destructively feed on hemlock—in Kejimkujik National Park & National Historic Site (Nova Scotia, Canada) hemlock plots. We compared 920 post-outbreak (2021–2023) and 1197 legacy (1990, 1991, & 1995) fungarium collections (E.C. Smith Herbarium, Acadia University) from the same sites. Collections were identified using <em>ITS</em> rDNA barcoding or morphological characteristics. Thirty-one indicator species were detected in the least damaged plots and greater moth damage corresponded to increased macrofungal community change across plots and over time. This suggests that intensifying adelgid infestations may permanently alter hemlock ecosystems, resulting in the loss of hemlock-preferring macrofungi.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"80 ","pages":"Article 101494"},"PeriodicalIF":2.2,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-09DOI: 10.1016/j.funeco.2025.101493
Austen Miller , Geoffrey Zahn
Environmental gradients and host genotype both influence microbial community assembly, but their relative roles are difficult to separate. We examined foliar fungal communities across the 43-ha clonal aspen Populus tremuloides known as Pando, where all stems are genetically identical. Using ITS metabarcoding, we examined 91 paired epiphytic and endophytic assemblages spanning the clone's interior and edge. Epiphytes were consistently more diverse than endophytes and dominated by Dothideomycetes, while endophytes were enriched in Leotiomycetes, particularly Drepanopeziza. Endophytic assemblages largely represented nested subsets of epiphytes from the same leaves, but this overlap declined sharply toward the grove's edge. Spatial analyses revealed stronger community turnover with edge proximity among endophytes, indicating increased environmental filtering at forest margins. These results demonstrate that edge effects can generate distinct, spatially structured fungal assemblages even within a single genetic individual, clarifying how dispersal and filtering jointly shape leaf-associated microbial diversity.
{"title":"Forest edge effects structure foliar fungal communities independent of host variation","authors":"Austen Miller , Geoffrey Zahn","doi":"10.1016/j.funeco.2025.101493","DOIUrl":"10.1016/j.funeco.2025.101493","url":null,"abstract":"<div><div>Environmental gradients and host genotype both influence microbial community assembly, but their relative roles are difficult to separate. We examined foliar fungal communities across the 43-ha clonal aspen <em>Populus tremuloides</em> known as Pando, where all stems are genetically identical. Using ITS metabarcoding, we examined 91 paired epiphytic and endophytic assemblages spanning the clone's interior and edge. Epiphytes were consistently more diverse than endophytes and dominated by Dothideomycetes, while endophytes were enriched in Leotiomycetes, particularly <em>Drepanopeziza</em>. Endophytic assemblages largely represented nested subsets of epiphytes from the same leaves, but this overlap declined sharply toward the grove's edge. Spatial analyses revealed stronger community turnover with edge proximity among endophytes, indicating increased environmental filtering at forest margins. These results demonstrate that edge effects can generate distinct, spatially structured fungal assemblages even within a single genetic individual, clarifying how dispersal and filtering jointly shape leaf-associated microbial diversity.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"80 ","pages":"Article 101493"},"PeriodicalIF":2.2,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145927268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-18DOI: 10.1016/j.funeco.2025.101482
Yuki Kawasaki , Yu Fukasawa , Václav Pouska , Radek Bače , Momchil Panayotov , Nickolay Tsvetanov , Olga Orman , Shunsuke Matsuoka , Hirotoshi Sato , Martin Mikoláš , Lucie Zíbarová , Elias Polemis , Kamil Král , Tomáš Přívětivý , Miroslav Svoboda
Wood decomposition by fungal communities plays a crucial role in regulating carbon dynamics and biodiversity within coarse woody debris (CWD), and these processes may be influenced by environmental change. However, the geographical distribution and functional roles of wood-decaying fungi are poorly explored. In the present study, we focused on CWD of Norway spruce, a dominant conifer species widely distributed in western Eurasia. Chemical analyses of 374 wood samples from six forest sites in central and southeastern Europe revealed a positive association between mean annual temperature (MAT) and dilute alkali solubility, a proxy for brown rot. DNA metabarcoding revealed associations between climatic conditions and wood-decaying fungal communities. Remarkably, the occurrence frequency of the dominant brown rot fungus, Fomitopsis pinicola, was positively correlated with MAT. These findings suggest that higher temperatures may promote lignin accumulation in Norway spruce CWD across central to southeastern Europe, potentially contributing to carbon storage in forests.
{"title":"Geographical gradients in fungal communities and decay types of Norway spruce logs across central to southeastern Europe","authors":"Yuki Kawasaki , Yu Fukasawa , Václav Pouska , Radek Bače , Momchil Panayotov , Nickolay Tsvetanov , Olga Orman , Shunsuke Matsuoka , Hirotoshi Sato , Martin Mikoláš , Lucie Zíbarová , Elias Polemis , Kamil Král , Tomáš Přívětivý , Miroslav Svoboda","doi":"10.1016/j.funeco.2025.101482","DOIUrl":"10.1016/j.funeco.2025.101482","url":null,"abstract":"<div><div>Wood decomposition by fungal communities plays a crucial role in regulating carbon dynamics and biodiversity within coarse woody debris (CWD), and these processes may be influenced by environmental change. However, the geographical distribution and functional roles of wood-decaying fungi are poorly explored. In the present study, we focused on CWD of Norway spruce, a dominant conifer species widely distributed in western Eurasia. Chemical analyses of 374 wood samples from six forest sites in central and southeastern Europe revealed a positive association between mean annual temperature (MAT) and dilute alkali solubility, a proxy for brown rot. DNA metabarcoding revealed associations between climatic conditions and wood-decaying fungal communities. Remarkably, the occurrence frequency of the dominant brown rot fungus, <em>Fomitopsis pinicola</em>, was positively correlated with MAT. These findings suggest that higher temperatures may promote lignin accumulation in Norway spruce CWD across central to southeastern Europe, potentially contributing to carbon storage in forests.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"80 ","pages":"Article 101482"},"PeriodicalIF":2.2,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145766130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-18DOI: 10.1016/j.funeco.2025.101492
E.E. Packard, K. Jörgensen
Estimating enzyme activity is a widely applied method for understanding the activity of organisms and their impact on biogeochemical cycles. In forest soils, fungal oxidative enzymes, such as manganese peroxidases, are key regulators of carbon stocks. Here we investigate whether MBTH/DMAB assays, targeting manganese peroxidase activities, are impacted by the degree of fungal cell disruption during extraction from pure culture. Further, we assess whether substrates 2,6-DMP, ABTS, and L-DOPA can distinguish manganese-dependent peroxidase activities under conditions optimized for MBTH/DMAB. Increased mycelial disruption during enzyme extraction increased estimated manganese peroxidase activity, but also the proportion of activity presumed to be from intracellular manganese-independent peroxidases. All substrates could detect peroxidase activities, but their specificity towards manganese peroxidases varied. In particular, ABTS was more readily oxidized by manganese-independent peroxidases. We recommend that extraction methods from soil be adapted to avoid excessive release of internal peroxidases, due to the trade-off between extraction efficiency and assay specificity.
{"title":"Targeting Mn-dependent peroxidase activities - considerations and optimizations","authors":"E.E. Packard, K. Jörgensen","doi":"10.1016/j.funeco.2025.101492","DOIUrl":"10.1016/j.funeco.2025.101492","url":null,"abstract":"<div><div>Estimating enzyme activity is a widely applied method for understanding the activity of organisms and their impact on biogeochemical cycles. In forest soils, fungal oxidative enzymes, such as manganese peroxidases, are key regulators of carbon stocks. Here we investigate whether MBTH/DMAB assays, targeting manganese peroxidase activities, are impacted by the degree of fungal cell disruption during extraction from pure culture. Further, we assess whether substrates 2,6-DMP, ABTS, and L-DOPA can distinguish manganese-dependent peroxidase activities under conditions optimized for MBTH/DMAB. Increased mycelial disruption during enzyme extraction increased estimated manganese peroxidase activity, but also the proportion of activity presumed to be from intracellular manganese-independent peroxidases. All substrates could detect peroxidase activities, but their specificity towards manganese peroxidases varied. In particular, ABTS was more readily oxidized by manganese-independent peroxidases. We recommend that extraction methods from soil be adapted to avoid excessive release of internal peroxidases, due to the trade-off between extraction efficiency and assay specificity.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"80 ","pages":"Article 101492"},"PeriodicalIF":2.2,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145792182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-26DOI: 10.1016/j.funeco.2025.101472
Matt Combes , Lynne Boddy , Joan Webber
Ash dieback, incited by Hymenoscyphus fraxineus, is causing mortality of ash across Europe. The pathogen colonises hosts via ascospores that are ejected from apothecia formed on ash leaf rachises, but information is lacking on the environmental factors that affect apothecia formation. This study, undertaken in England and Wales during summer 2018 and 2019, monitored the influence of temperature, relative humidity, ground cover, and canopy openness on apothecia development. Additionally, apothecia were monitored in the laboratory by incubating infected ash rachises at 4 °C, 10 °C, 15 °C and 20 °C, and then moving to 18–21 °C to assess how earlier incubation temperatures influenced subsequent apothecia formation. In the field, temperature had a positive effect on apothecia development which was amplified as relative humidity and canopy openness increased; ground cover associated with greater moisture also enhanced apothecia development. Laboratory investigations indicated a threshold temperature for apothecia formation of ∼10 °C, with pre-incubation temperature influencing both the rate and probability of apothecia development.
{"title":"Environmental regulation of Hymenoscyphus fraxineus apothecia development","authors":"Matt Combes , Lynne Boddy , Joan Webber","doi":"10.1016/j.funeco.2025.101472","DOIUrl":"10.1016/j.funeco.2025.101472","url":null,"abstract":"<div><div>Ash dieback, incited by <em>Hymenoscyphus fraxineus</em>, is causing mortality of ash across Europe. The pathogen colonises hosts via ascospores that are ejected from apothecia formed on ash leaf rachises, but information is lacking on the environmental factors that affect apothecia formation. This study, undertaken in England and Wales during summer 2018 and 2019, monitored the influence of temperature, relative humidity, ground cover, and canopy openness on apothecia development. Additionally, apothecia were monitored in the laboratory by incubating infected ash rachises at 4 °C, 10 °C, 15 °C and 20 °C, and then moving to 18–21 °C to assess how earlier incubation temperatures influenced subsequent apothecia formation. In the field, temperature had a positive effect on apothecia development which was amplified as relative humidity and canopy openness increased; ground cover associated with greater moisture also enhanced apothecia development. Laboratory investigations indicated a threshold temperature for apothecia formation of ∼10 °C, with pre-incubation temperature influencing both the rate and probability of apothecia development.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"79 ","pages":"Article 101472"},"PeriodicalIF":2.2,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-25DOI: 10.1016/j.funeco.2025.101481
Martina De Mattheis , Mattia Iannella , Marco Leonardi , Giovanni Pacioni , Donald H. Pfister , Mirco Iotti
Some species in the genus Peziza develop in extreme cold environments, at the margins of melting snow. In this work, we characterized the genetic structure of nivicolous Peziza populations in Campo Pericoli, a glacial basin on the Gran Sasso massif, the highest peak of the Apennines (central Italy). A hundred ascomata collected in 2020–2021 were analysed using multigene sequencing (ITS, LSU, β-tubulin, RPB2). Four topographical variables (elevation, slope, aspect, topographic wetness index) were recorded for each fruiting point and correlated with genetic diversity. Two main clades, attributable to P. heimii and P. nivalis, were inferred through clustering and phylogenetic reconstruction. No significant differences in topographical variables were found between clades, but kernel density revealed distinct spatial distributions. However, considering the global distribution of these species, P. nivalis appears to exhibit broader ecological adaptability than P. heimii. Climate warming could affect competition between these species, potentially favoring P. nivalis over P. heimii.
{"title":"Diversity and ecology of nivicolous Peziza from the glacial basin of the Gran Sasso massif in the Central Apennines","authors":"Martina De Mattheis , Mattia Iannella , Marco Leonardi , Giovanni Pacioni , Donald H. Pfister , Mirco Iotti","doi":"10.1016/j.funeco.2025.101481","DOIUrl":"10.1016/j.funeco.2025.101481","url":null,"abstract":"<div><div>Some species in the genus <em>Peziza</em> develop in extreme cold environments, at the margins of melting snow. In this work, we characterized the genetic structure of nivicolous <em>Peziza</em> populations in Campo Pericoli, a glacial basin on the Gran Sasso massif, the highest peak of the Apennines (central Italy). A hundred ascomata collected in 2020–2021 were analysed using multigene sequencing (ITS, LSU, β-tubulin, RPB2). Four topographical variables (elevation, slope, aspect, topographic wetness index) were recorded for each fruiting point and correlated with genetic diversity. Two main clades, attributable to <em>P. heimii</em> and <em>P. nivalis</em>, were inferred through clustering and phylogenetic reconstruction. No significant differences in topographical variables were found between clades, but kernel density revealed distinct spatial distributions. However, considering the global distribution of these species, <em>P. nivalis</em> appears to exhibit broader ecological adaptability than <em>P. heimii</em>. Climate warming could affect competition between these species, potentially favoring <em>P. nivalis</em> over <em>P. heimii</em>.</div></div>","PeriodicalId":55136,"journal":{"name":"Fungal Ecology","volume":"79 ","pages":"Article 101481"},"PeriodicalIF":2.2,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}