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26 results for “Ectomycorrhizal fungal community”
Data from: A common ericoid shrub modulates the diversity and structure of fungal communities across an arbuscular to ectomycorrhizal tree dominance gradient
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Data from: Ectomycorrhizal fungal community succession and fragmentation across subalpine forest edges nearly 3 decades postharvest
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Belowground fungal community presence in savanna and oak forest: Causes of change in ectomycorrhizal communities
This experiment is designed to examine whether oak savanna supports a unique community of ectomycorrhizal fungi, a higher diversity of ectomycorrhizal fungi or a greater proportional abundance of ascomycete fungi compared with adjacent areas where the absence of fire has resulted in oak savanna conversion to oak forest.
Sporocarp count aboveground fungal communities in savanna and oak forest: Causes of change in ectomycorrhizal communities
This experiment is designed to examine whether oak savanna supports a unique community of ectomycorrhizal fungi, a higher diversity of ectomycorrhizal fungi or a greater proportional abundance of ascomycete fungi compared with adjacent areas where the absence of fire has resulted in oak savanna conversion to oak forest.
Data from: Temporal variation of Bistorta vivipara-associated ectomycorrhizal fungal communities in the High Arctic
Ectomycorrhizal (ECM) fungi are important for efficient nutrient uptake of several widespread arctic plant species. Knowledge of temporal variation of ECM fungi, and the relationship of these patterns to environmental variables, is essential to understand energy and nutrient cycling in Arctic ecosystems. We sampled roots of Bistorta vivipara ten times over two years; three times during the growing-season (June, July and September) and twice during winter (November and April) of both years. We found 668 ECM OTUs belonging to 25 different ECM lineages, whereof 157 OTUs persisted throughout all sampling time-points. Overall, ECM fungal richness peaked in winter and species belonging to Cortinarius, Serendipita and Sebacina were more frequent in winter than during summer. Structure of ECM fungal communities was primarily affected by spatial factors. However, after accounting for spatial effects, significant seasonal variation was evident revealing correspondence with seasonal changes in environmental conditions. We demonstrate that arctic ECM richness and community structure differ between summer (growing-season) and winter, possibly due to reduced activity of the core community, and addition of fungi adapted for winter conditions forming a winter-active fungal community. Significant month × year interactions were observed both for fungal richness and community composition, indicating unpredictable between-year variation. Our study indicates that addressing seasonal changes requires replication over several years.
Data from: Distribution and drivers of ectomycorrhizal fungal communities across the North American Arctic
Ectomycorrhizal fungi (EMF) form symbioses with a few plant species that comprise a large fraction of the arctic vegetation. Despite their importance, the identity, abundance and distribution of EMF in the Arctic, as well as the key drivers controlling their community composition are poorly understood. In this study, we investigated the diversity and structure of EMF communities across a bioclimatic gradient spanning much of the North American Arctic. We collected roots from two principal arctic ectomycorrhizal host plants, Salix arctica and Dryas integrifolia, typically growing intermingled, at 23 locations stratified across the five bioclimatic subzones of the Arctic. DNA was extracted from ectomycorrhizal root tips and the ITS region was sequenced and phylogenetically analyzed. A total of 242 fungal Operational Taxonomic Units (OTUs) were documented, with 203 OTUs belonging to the Basidiomycota and 39 to the Ascomycota, exceeding the number of previously morphologically described EMF in the Arctic. EMF communities were dominated by a few common and species-rich families such as Thelephoraceae, Inocybaceae, Sebacinaceae, Cortinariaceae, and Pyronemataceae. Both host plants showed similar species richness, with 176 OTUs on Salix arctica and 154 OTUs on Dryas integrifolia. Host plant identity did not affect EMF community composition. The ten most abundant OTUs had a wide geographic distribution throughout the Arctic, and were also found in boreal, temperate and Mediterranean regions, where they were associated with a variety of hosts. Species richness did not decline with increasing latitude. However, EMF community structure changed gradually across the bioclimatic gradient with the greatest similarity between neighboring bioclimatic subzones and locations. EMF community structure was correlated with environmental factors at a regional scale, corresponding to a complex of glaciation history, geology, soil properties, plant productivity and climate. This is the first large-scale study of EMF communities across all five bioclimatic subzones of the North American Arctic, accompanied by an extensive set of environmental factors analyzed to date. While our study provides baseline data to assess shifts of plant and fungi distribution in response to climate change, it also suggests that with ongoing climate warming, EMF community composition may be affected by northward shifts of some taxa.
Archive data supporting the results in the paper: Long-term soil warming alters fine root dynamics and morphology, and their ectomycorrhizal fungal community in a temperate forest soil"
<p><span>Climate warming is predicted to affect temperate forests severely, but the response of fine roots, key to plant nutrition, water uptake, soil carbon and nutrient cycling is unclear. Understanding how fine roots will respond to increasing temperature is a prerequisite for predicting the functioning of forests in a warmer climate. We studied the response of fine roots and their ectomycorrhizal (EcM) fungal and root-associated bacterial communities to soil warming by 4 °C in a mixed spruce-beech forest in the Austrian Limestone Alps after 8 and 14 years of soil warming, respectively. Fine root biomass (FRB) and fine root production were 17% and 128% higher in the warmed plots, respectively, after 14 years. The increase in FRB (13%) was not significant after 8 years of treatment, whereas specific root length, specific root area, and root tip density were significantly higher in warmed plots at both sampling occasions. Soil warming did not affect EcM exploration types and diversity, but changed their community composition, with an increase in the relative abundance of <em>Cenoccocum</em> at 0 – 10 cm soil depth, a drought-stress tolerant genus, and an increase in short and long-distance exploration types like <em>Sebacina </em>and <em>Boletus </em>at 10 – 20 cm soil depth. Warming increased the root-associated bacterial diversity but did not affect their community composition. Soil warming did not affect nutrient concentrations of fine roots, though we found indications of limited soil phosphorus (P) and potassium (K) availability. </span><span>Our findings suggest that, in the studied ecosystem, global warming could persistently increase soil carbon inputs due to accelerated fine root growth and turnover, and could simultaneously alter fine root morphology and EcM fungal community composition towards improved nutrient foraging. </span></p>
Ectomycorrhizal fungal community assembly on seedlings of a Neotropical monodominant tree
<p>Ectomycorrhizal tree species may benefit from positive plant-soil feedbacks, where soil environments near adult trees enhance conspecific seedling growth and survival. In tropical monodominant forests seedling survival is particularly important, as seedling banks help maintain stand-level dominance over generations. Positive plant-soil feedbacks may be mediated by diverse ectomycorrhizal fungal communities, which improve nutrient acquisition of heavily shaded seedlings. Despite the potential importance of these fungi, little is known about ectomycorrhizal fungal community development on seedlings of tropical monodominant trees. In Guyana, we sequentially monitored percent colonization and species composition of ectomycorrhizal fungi on an even-age cohort of seedlings of the tropical monodominant tree <i>Dicymbe corymbosa </i>(Fabaceae subfamily Detarioideae). Ectomycorrhizal fungi found on <i>D. corymbosa </i>seedlings over a twelve-month period of early development were compared to those of conspecific adults and four other ectomycorrhizal tree species in the region. Species turnover was high (80%) between six- and twelve-month-old seedlings, though the /russula-lactarius, /clavulina, and /tomentella-thelephora lineages were species-rich on seedlings at all ages. The number of ectomycorrhizal morphotypes per seedling increased with age, but extent of fungal colonization did not. Seedling ectomycorrhizal fungi were shared with sympatric conspecific adults (55%) and, to a lesser extent, regional heterospecific adults (27%), but numerous species were previously unrecorded for Guyana<i>.<b> </b></i>Over their development<b> </b><i>D. corymbosa </i>seedlings did not rely strictly on adult trees for their mycobionts but appeared to foster unique assemblages of ectomycorrhizal fungi.</p>
Data from: Plant genetics and interspecific competitive interactions determine ectomycorrhizal fungal community responses to climate change
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Data from: Temporal variation of Bistorta vivipara-associated ectomycorrhizal fungal communities in the High Arctic
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Data from: Distribution and drivers of ectomycorrhizal fungal communities across the North American Arctic
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Archive data supporting the results in the paper: Long-term soil warming alters fine root dynamics and morphology, and their ectomycorrhizal fungal community in a temperate forest soil"
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Ectomycorrhizal fungal community assembly on seedlings of a Neotropical monodominant tree
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Supplementary material 3 from: Meidl P, Furneaux B, Tchan KI, Kluting K, Ryberg M, Guissou M-L, Soro B, Traoré A, Konomou G, Yorou NS, Rosling A (2021) Soil fungal communities of ectomycorrhizal dominated woodlands across West Africa. MycoKeys 81: 45-68. https://doi.org/10.3897/mycokeys.81.66249
Datafile 3
Supplementary material 1 from: Meidl P, Furneaux B, Tchan KI, Kluting K, Ryberg M, Guissou M-L, Soro B, Traoré A, Konomou G, Yorou NS, Rosling A (2021) Soil fungal communities of ectomycorrhizal dominated woodlands across West Africa. MycoKeys 81: 45-68. https://doi.org/10.3897/mycokeys.81.66249
Datafile 1
Supplementary material 2 from: Meidl P, Furneaux B, Tchan KI, Kluting K, Ryberg M, Guissou M-L, Soro B, Traoré A, Konomou G, Yorou NS, Rosling A (2021) Soil fungal communities of ectomycorrhizal dominated woodlands across West Africa. MycoKeys 81: 45-68. https://doi.org/10.3897/mycokeys.81.66249
Datafile 2
Supplementary material 5 from: Meidl P, Furneaux B, Tchan KI, Kluting K, Ryberg M, Guissou M-L, Soro B, Traoré A, Konomou G, Yorou NS, Rosling A (2021) Soil fungal communities of ectomycorrhizal dominated woodlands across West Africa. MycoKeys 81: 45-68. https://doi.org/10.3897/mycokeys.81.66249
Table S1 and Figs S1–S4
Supplementary material 4 from: Meidl P, Furneaux B, Tchan KI, Kluting K, Ryberg M, Guissou M-L, Soro B, Traoré A, Konomou G, Yorou NS, Rosling A (2021) Soil fungal communities of ectomycorrhizal dominated woodlands across West Africa. MycoKeys 81: 45-68. https://doi.org/10.3897/mycokeys.81.66249
Datafile 4
Figure 6 from: Meidl P, Furneaux B, Tchan KI, Kluting K, Ryberg M, Guissou M-L, Soro B, Traoré A, Konomou G, Yorou NS, Rosling A (2021) Soil fungal communities of ectomycorrhizal dominated woodlands across West Africa. MycoKeys 81: 45-68. https://doi.org/10.3897/mycokeys.81.66249
Figure 6 Taxonomic composition to family level of ECM fungi in gallery forest and woodlands. Abundance measured as fraction of reads (A) and richness measured as fraction of species hypotheses (SH) (B).
Figure 3 from: Meidl P, Furneaux B, Tchan KI, Kluting K, Ryberg M, Guissou M-L, Soro B, Traoré A, Konomou G, Yorou NS, Rosling A (2021) Soil fungal communities of ectomycorrhizal dominated woodlands across West Africa. MycoKeys 81: 45-68. https://doi.org/10.3897/mycokeys.81.66249
Figure 3 Species accumulation curves for each plot. Curves are based on SHs, by sequencing depth (A) and number of trees sampled (B), presented separately for three gallery forest sites (left panels) and six woodland sites (right panels). Points represent the observed species richness at the actual sequencing depth and trees sampled in A, B respectively. Thin lines represent the accumulation curve calculated by rarefaction (darker) and extrapolation (lighter); shaded regions represent the associated 95% confidence intervals. Dotted lines represent the asymptotic estimate for each site.
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