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McPolin MC, Kranabetter JM, Philpott TJ, Hawkins BJ. Sporocarp nutrition of ectomycorrhizal fungi indicates an important role for endemic species in a high productivity temperate rainforest. THE NEW PHYTOLOGIST 2024; 242:1603-1613. [PMID: 37771241 DOI: 10.1111/nph.19280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 09/04/2023] [Indexed: 09/30/2023]
Abstract
Endemic species of ectomycorrhizal fungi (EMF) are found throughout many biomes, but it is unclear whether their localized distribution is dictated by habitat filtering or geographical barriers to dispersal. We examined community composition (via long-read metabarcoding) and differences in sporocarp nutrition between endemic and cosmopolitan EMF species across perhumid temperate rainforests of British Columbia, characterized by soils with high nitrogen (N) supply alongside low phosphorus (P) and cation availability. Endemic EMF species, representing almost half of the community, had significantly greater sporocarp N (24% higher), potassium (+16%), and magnesium (+17%) concentrations than cosmopolitan species. Sporocarp P concentrations were comparatively low and did not differ by fungal range. However, sporocarp N% and P% were well correlated, supporting evidence for linkages in N and P acquisition. Endemics were more likely to occur on Tsuga heterophylla (a disjunct host genus) than Picea sitchensis (a circumpolar genus). The Inocybaceae and Thelephoraceae families had high proportions of endemic taxa, while species in Cortinariaceae were largely cosmopolitan, indicating some niche conservatism among genera. We conclude that superior adaptive traits in relation to perhumid soils were skewed toward the endemic community, underscoring the potentially important contribution of these localized fungi to rainforest nutrition and productivity.
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Affiliation(s)
- M Claire McPolin
- Centre for Forest Biology, University of Victoria, PO Box 3020, STN CSC, Victoria, BC, V8W 3N5, Canada
| | - J Marty Kranabetter
- British Columbia Ministry of Forests, PO Box 9536, Stn Prov Govt, Victoria, BC, V8W 9C4, Canada
| | - Tim J Philpott
- British Columbia Ministry of Forests, 200-640 Borland St., Williams Lake, BC, V2G 4T1, Canada
| | - Barbara J Hawkins
- Centre for Forest Biology, University of Victoria, PO Box 3020, STN CSC, Victoria, BC, V8W 3N5, Canada
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Zhu Z, Liu X, Hsiang T, Ji R, Liu S. Forest Type and Climate Outweigh Soil Bank in Shaping Dynamic Changes in Macrofungal Diversity in the Ancient Tree Park of Northeast China. J Fungi (Basel) 2023; 9:856. [PMID: 37623627 PMCID: PMC10455530 DOI: 10.3390/jof9080856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/01/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023] Open
Abstract
The community structure of macrofungi is influenced by multiple complex factors, including climate, soil, vegetation, and human activities, making it challenging to discern their individual contributions. To investigate the dynamic changes in macrofungal diversity in an Ancient Tree Park located in Northeast China and explore the factors influencing this change, we collected 1007 macrofungi specimens from different habitats within the park and identified 210 distinct fungal species using morphological characteristics and ITS sequencing. The species were classified into 2 phyla, 6 classes, 18 orders, 55 families, and 94 genera. We found macrofungal compositions among different forest types, with the mixed forest displaying the highest richness and diversity. Climatic factors, particularly rainfall and temperature, positively influenced macrofungal species richness and abundance. Additionally, by analyzing the soil fungal community structure and comparing aboveground macrofungi with soil fungi in this small-scale survey, we found that the soil fungal bank is not the main factor leading to changes in the macrofungal community structure, as compared to the influence of climate factors and forest types. Our findings provide valuable insights into the dynamic nature of macrofungal diversity in the Ancient Tree Park, highlighting the influence of climate and forest type.
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Affiliation(s)
- Zhaoxiang Zhu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Z.Z.); (X.L.)
| | - Xin Liu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Z.Z.); (X.L.)
| | - Tom Hsiang
- Department of Environmental Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Ruiqing Ji
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Z.Z.); (X.L.)
| | - Shuyan Liu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (Z.Z.); (X.L.)
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Kranabetter JM, Robbins S, Hawkins BJ. Host population effects on ectomycorrhizal fungi vary between low and high phosphorus soils of temperate rainforests. MYCORRHIZA 2023; 33:199-209. [PMID: 36947254 DOI: 10.1007/s00572-023-01109-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 03/13/2023] [Indexed: 06/08/2023]
Abstract
Geographic distinctions in the affinity of tree populations for select ectomycorrhizal fungi (EMF) may occur where strong edaphic pressures act on fungal communities and their hosts. We examine this premise for Pseudotsuga menziesii var. menziesii of southwest British Columbia, using ten native seedlots collected from a range of mean annual precipitation (MAP), as a proxy for podzolization extent and phosphorus (P) deficiencies, and evaluated in contrasting low P and high P soils. After two growing seasons, seedling biomass in the high P soil dwarfed that of the low P soil, and better growth rates under high P were detected for populations from very dry and very wet origins. EMF communities on the high P soil displayed more symmetry among host populations than the low P soil (average community dissimilarity of 0.20% vs. 0.39%, respectively). Seedling foliar P% differed slightly but significantly in relation to MAP of origin. EMF species richness varied significantly among host populations but independently of climatic parameters. There were significant shifts in EMF species abundance related to seedlot MAP, particularly on the low P soil where nonlinear relationships were found for Wilcoxina mikolae, Hyaloscypha finlandica, and Rhizopogon villosulus. Despite efforts to enhance colonization by native fungi, the predominance of ruderal EMF species hindered a realistic evaluation of local adaptation among host-fungi populations. Nevertheless, the shifting affinity in taxa abundance and wider community disparity on low P soil reflected the potential for a consequential host genetic effect related to geographical patterns in P availability across temperate rainforests.
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Affiliation(s)
- J M Kranabetter
- British Columbia Ministry of Forests, P.O. Box 9536, Stn Prov Govt, Victoria, B.C., Canada, V8W 9C4.
| | - S Robbins
- Centre for Forest Biology, University of Victoria, P.O. Box 3020, STN CSC, Victoria, B.C., Canada, V8W 3N5
| | - B J Hawkins
- Centre for Forest Biology, University of Victoria, P.O. Box 3020, STN CSC, Victoria, B.C., Canada, V8W 3N5
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Mafune KK, Vogt DJ, Vogt KA, Cline EC, Godfrey BJ, Bunn RA, Meade AJS. Old-growth Acer macrophyllum trees host a unique suite of arbuscular mycorrhizal fungi and other root-associated fungal taxa in their canopy soil environment. Mycologia 2023:1-14. [PMID: 37262388 DOI: 10.1080/00275514.2023.2206930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 04/14/2023] [Indexed: 06/03/2023]
Abstract
Canopy soils occur on tree branches throughout the temperate rainforests of the Pacific Northwest Coast and are recognized as a defining characteristic of these ecosystems. Certain tree species extend adventitious roots into these canopy soil environments. Yet, research on adventitious root-associated fungi remains limited. Our study used microscopy to compare fungal colonization intensity between canopy and forest floor roots of old-growth bigleaf maple (Acer macrophyllum) trees. Subsequently, two high-throughput sequencing platforms were used to explore the spatial and seasonal variation of root-associated fungi between the two soil environments over one year. We found that canopy and forest floor roots had similar colonization intensity and were associating with a diversity of arbuscular mycorrhizal fungi and other potential symbionts, many of which were resolved to species level. Soil environment and seasonality affected root-associated fungal community composition, and several fungal species were indicative of the canopy soil environment. In Washington State's (USA) temperate old-growth rainforests, these canopy soil environments host a unique suite of root-associated fungi. The presence of arbuscular mycorrhizae provides further evidence that adventitious roots form fungal associations to exploit canopy soils for resources, and there may be novel relationships forming with other fungi. These soils may be providing a redundancy compartment (i.e., "nutrient reserve"), imparting a resiliency to disturbances for certain old-growth trees.
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Affiliation(s)
- Korena K Mafune
- Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington, 98105
- School of Environmental and Forest Sciences, University of Washington, Seattle, Washington, 98105
| | - Daniel J Vogt
- School of Environmental and Forest Sciences, University of Washington, Seattle, Washington, 98105
| | - Kristiina A Vogt
- School of Environmental and Forest Sciences, University of Washington, Seattle, Washington, 98105
| | - E C Cline
- Division of Sciences and Mathematics, University of Washington, Tacoma, Washington, 98402
| | - Bruce J Godfrey
- Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington, 98105
| | - Rebecca A Bunn
- Department of Environmental Sciences, Western Washington University, Bellingham, Washington, 98225
| | - Alec J S Meade
- School of Environmental and Forest Sciences, University of Washington, Seattle, Washington, 98105
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Raphael B, Nicolás M, Martina J, Daphnée B, Daniel W, Pierre-Emmanuel C. The fine-tuning of mycorrhizal pathway in sorghum depends on both nitrogen-phosphorus availability and the identity of the fungal partner. PLANT, CELL & ENVIRONMENT 2022; 45:3354-3366. [PMID: 36030544 DOI: 10.1111/pce.14426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Sorghum is an important worldwide source of food, feed and fibres. Like most plants, it forms mutualistic symbioses with arbuscular mycorrhizal fungi (AMF), but the nutritional basis of mycorrhiza-responsiveness is largely unknown. Here, we investigated the transcriptional and physiological responses of sorghum to two different AMF species, Rhizophagus irregularis and Funneliformis mosseae, under 16 different conditions of nitrogen (N) and phosphorus (P) supply. Our experiment reveals fine-scale differences between two AMF species in the nutritional interactions with sorghum plants. Physiological and gene expression patterns (ammonium transporters: AMT; phosphate transporters: PHT) indicate the existence of generalist or specialist mycorrhizal pathway. While R. irregularis switched on the mycorrhizal pathway independently of the plant nutritional status, F. mosseae influenced the mycorrhizal pathway depending on the N-to-P plant ratio and soil supply. The differences between both AMF species suggest some AMT and PHT as ideal candidates to develop markers for improving efficiency of nutrient acquisition in sorghum under P and N limitation, and for the selection of plant genotypes.
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Affiliation(s)
- Boussageon Raphael
- Agroécologie, INRAE, Institut Agro, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, Dijon, France
| | - Marro Nicolás
- Institute of Botany, Czech Academy of Sciences, Průhonice, Czech Republic
| | - Janoušková Martina
- Institute of Botany, Czech Academy of Sciences, Průhonice, Czech Republic
| | - Brulé Daphnée
- Agroécologie, INRAE, Institut Agro, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, Dijon, France
| | - Wipf Daniel
- Agroécologie, INRAE, Institut Agro, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, Dijon, France
| | - Courty Pierre-Emmanuel
- Agroécologie, INRAE, Institut Agro, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, Dijon, France
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Forest Type and Site Conditions Influence the Diversity and Biomass of Edible Macrofungal Species in Ethiopia. J Fungi (Basel) 2022; 8:jof8101023. [PMID: 36294588 PMCID: PMC9605516 DOI: 10.3390/jof8101023] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/19/2022] [Accepted: 09/24/2022] [Indexed: 12/02/2022] Open
Abstract
Ethiopian forests are rich in valuable types of non-wood forest products, including mushrooms. However, despite their nutritional, economic, and ecological importance, wild edible mushrooms have been given little attention and are rarely documented in Ethiopia. In this study, we assessed mushroom production levels in natural and plantation forests and the influence of climate and environmental variables on mushroom production. Sporocarps were sampled weekly from July to August 2019 at a set of permanent plots (100 m2) in both forest systems. We analyzed 63 plots to quantify sporocarp species’ richness and fresh weight as well as to elucidate the degree of influence of forest types and site conditions, including soil and climate. Morphological analyses were used to identify fungi. In total, we recorded 64 wild edible fungal species belonging to 31 genera and 21 families from the plots established in the natural and plantation forests. A significantly greater total number of edible fungi were collected from natural forests (n = 40 species) than from plantations. Saprotrophs (92.19%) were the dominant guild whereas ectomycorrhizal fungi represented only 6.25% of species. Ecologically and economically important fungal species such as Agaricus campestroides, Tylopilus niger, Suillus luteus, Tricholoma portentosum, and Morchella americana were collected. The sporocarp yield obtained from plantation forests (2097.57 kg ha−1 yr–1) was significantly greater than that obtained from natural forests (731.18 kg ha−1 yr–1). The fungal community composition based on sporocarp production was mainly correlated with the organic matter, available phosphorus, and total nitrogen content of the soil, and with the daily minimum temperature during collection. Accordingly, improving edible species’ richness and sporocarp production by maintaining ecosystem integrity represents a way of adding economic value to forests and maintaining biological diversity, while providing wood and non-wood forest products; we propose that this approach is imperative for managing Ethiopian forests.
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Hu JJ, Zhao GP, Tuo YL, Qi ZX, Yue L, Zhang B, Li Y. Ecological Factors Influencing the Occurrence of Macrofungi from Eastern Mountainous Areas to the Central Plains of Jilin Province, China. J Fungi (Basel) 2022; 8:jof8080871. [PMID: 36012860 PMCID: PMC9410083 DOI: 10.3390/jof8080871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/16/2022] [Indexed: 12/26/2022] Open
Abstract
Macrofungi are essential in forest ecological functioning. Their distribution and diversity are primarily impacted by vegetation, topography, and environmental factors, such as precipitation and temperature. However, the composition and topographical changes of the macrofungi between the eastern mountainous area and central plains of Jilin Province are currently unknown. For this study, we selected six investigational sites representing three different topographical research sites in Jilin Province to assess macrofungal diversity, and applied a quadrat sampling method. Macro- and micro-morphological characteristics combined with the molecular method were used to identify the collected macrofungi. Meanwhile, selected meteorological data were obtained for statistical analysis. As a result, 691 species were identified, of which Agarics were the most common, accounting for 60.23%, while the Cantharelloid fungi were the least common (0.91%). Furthermore, most of the shared genera (species) were saprophytic. The α diversity showed that the species diversity and richness in Longwan National Forest Park (B2) were the highest at the genus level. The mycorrhizal macrofungi proportion revealed that Quanshuidong Forest Farm (A1) was the healthiest. Finally, species composition similarity decreased with the transition from mountainous to hilly plains. We concluded that the occurrence of macrofungi was most influenced by vegetation. The air humidity, precipitation, and wind velocity were also found to significantly impact the occurrence of macrofungi. Finally, the mycorrhizal:saprophytic ratios and species similarity decreased with the transition from the mountainous area to the plains. The results presented here help elucidate the macrofungi composition and their relationship with environmental factors and topography in Jilin Province, which is crucial for sustainable utilization and future conservation.
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Affiliation(s)
- Jia-Jun Hu
- Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- School of Life Science, Northeast Normal University, Changchun 130024, China
- Joint Laboratory of International Cooperation in Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- China Mycological Valley (Hefei), Hefei 231100, China
| | - Gui-Ping Zhao
- Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Yong-Lan Tuo
- Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- Joint Laboratory of International Cooperation in Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- China Mycological Valley (Hefei), Hefei 231100, China
| | - Zheng-Xiang Qi
- Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Lei Yue
- Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Bo Zhang
- Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- Joint Laboratory of International Cooperation in Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- China Mycological Valley (Hefei), Hefei 231100, China
- Correspondence: or (B.Z.); or (Y.L.)
| | - Yu Li
- Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- School of Life Science, Northeast Normal University, Changchun 130024, China
- Joint Laboratory of International Cooperation in Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- China Mycological Valley (Hefei), Hefei 231100, China
- Correspondence: or (B.Z.); or (Y.L.)
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Baeza-Guzmán Y, Medel-Ortiz R, Trejo Aguilar D, Garibay-Orijel R. Medium-distance soil foragers dominate the Pinus hartwegii ectomycorrhizal community at the 3900 m Neotropical treeline. Symbiosis 2022. [DOI: 10.1007/s13199-022-00869-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wang W, Sun J, Zhong Z, Xiao L, Wang Y, Wang H. Relating macrofungal diversity and forest characteristics in boreal forests in China: Conservation effects, inter-forest-type variations, and association decoupling. Ecol Evol 2021; 11:13268-13282. [PMID: 34646468 PMCID: PMC8495802 DOI: 10.1002/ece3.8049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/04/2021] [Accepted: 08/09/2021] [Indexed: 11/11/2022] Open
Abstract
QUESTION How conservation and forest type affect macrofungal compositional diversity is not well understood. Even less is known about macrofungal associations with plants, soils, and geoclimatic conditions. LOCATION Southern edge of boreal forest distribution in China, named as Huzhong Nature Reserve. METHODS We surveyed a total of 72 plots for recording macrofungi, plants, and topography in 2015 and measured soil organic carbon, nitrogen, and bulk density. Effects of conservation and forest types on macrofungi and plants were compared, and their associations were decoupled by structural equation modeling (SEM) and redundancy ordination (RDA). RESULTS Conservation and forest type largely shaped macrofungal diversity. Most of the macrofungal traits declined with the conservation intensities or peaked at the middle conservation region. Similarly, 91% of macrofungal traits declined or peaked in the middle succession stage of birch-larch forests. Forest conservation resulted in the observation of sparse, larch-dominant, larger tree forests. Moreover, the soil outside the Reserve had more water, higher fertility, and lower bulk density, showing miscellaneous wood forest preference. There is a complex association between conservation site characteristics, soils, plants, and macrofungi. Variation partitioning showed that soil N was the top-one factor explaining the macrofungal variations (10%). As shown in SEM coefficients, conservation effect to macrofungi (1.1-1.2, p < .05) was like those from soils (1.2-1.6, p < .05), but much larger than the effect from plants (0.01-0.14, p > .10). For all tested macrofungal traits, 89%-97% of their variations were from soils, and 5%-21% were from conservation measures, while plants compensated 1%-10% of these effects. Our survey found a total of 207 macrofungal species, and 65 of them are new updates in this Reserve, indicating data shortage for the macrofungi list here. CONCLUSION Our findings provide new data for the joint conservation of macrofungi and plant communities, highlighting the crucial importance of soil matrix for macrofungal conservation in boreal forests.
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Affiliation(s)
- Wenjie Wang
- Urban Forests and Wetlands groupNortheast Institute of Geography and AgroecologyChinese Academy of ScienceChangchunChina
- Key Laboratory of Forest Plant EcologyMinistry of EducationNortheast Forestry UniversityHarbinChina
| | - Jingxue Sun
- Key Laboratory of Forest Plant EcologyMinistry of EducationNortheast Forestry UniversityHarbinChina
| | - Zhaoliang Zhong
- Key Laboratory of Forest Plant EcologyMinistry of EducationNortheast Forestry UniversityHarbinChina
| | - Lu Xiao
- Urban Forests and Wetlands groupNortheast Institute of Geography and AgroecologyChinese Academy of ScienceChangchunChina
| | - Yuanyuan Wang
- Urban Forests and Wetlands groupNortheast Institute of Geography and AgroecologyChinese Academy of ScienceChangchunChina
| | - Huimei Wang
- Key Laboratory of Forest Plant EcologyMinistry of EducationNortheast Forestry UniversityHarbinChina
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Retention of Matured Trees to Conserve Fungal Diversity and Edible Sporocarps from Short-Rotation Pinus radiata Plantations in Ethiopia. J Fungi (Basel) 2021; 7:jof7090702. [PMID: 34575740 PMCID: PMC8471983 DOI: 10.3390/jof7090702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/08/2021] [Accepted: 08/21/2021] [Indexed: 11/19/2022] Open
Abstract
This study is conducted in the short-rotation plantations from the Afromontane Region of Ethiopia. Sporocarps were sampled weekly in a set of permanent plots (100 m2) in young, medium-aged, and mature Pinus radiata (Don) plantations. Fungal richness, diversity, and sporocarp yields were estimated. Composite soil samples were also collected from each plot to determine explanatory edaphic variables for taxa composition. We collected 92 fungal taxa, of which 8% were ectomycorrhizal (ECM). Taxa richness, the Shannon diversity index, and ECM species richness were higher in mature stands. Interestingly, 26% of taxa were classified as edible. Sporocarp yield showed increasing trends towards matured stands. OM and C/N ratio significantly affected fungal composition and sporocarp production. The deliberate retention of mature trees in a patch form rather than clear felling of the plantations could be useful to conserve and promote fungal diversity and production, including valuable taxa such as Morchella, Suillus, and Tylopilus in older stands. This approach has important implications for forest floor microhabitats, which are important for macrofungal occurrence and production. Thus, this strategy could improve the economic outputs of these plantations in the Afromontane Region, while the mature trees could serve as a bridge for providing fungal inocula to the new plantations.
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Kranabetter JM, Harman-Denhoed R, Hawkins BJ. Saprotrophic and ectomycorrhizal fungal sporocarp stoichiometry (C : N : P) across temperate rainforests as evidence of shared nutrient constraints among symbionts. THE NEW PHYTOLOGIST 2019; 221:482-492. [PMID: 30084239 DOI: 10.1111/nph.15380] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
Quantifying nutritional dynamics of free-living saprotrophs and symbiotic ectomycorrhizal fungi in the field is challenging, but the stoichiometry of fruiting bodies (sporocarps) may be an effective methodology for this purpose. Carbon (C), nitrogen (N) and phosphorus (P) concentrations of soils, foliage and 146 sporocarp collections were analyzed from 14 Pseudotsuga menziesii var. menziesii stands across a podzolization gradient on Vancouver Island (Canada). N and P concentrations were considerably higher in saprotrophic fungi. Fungal N% increased with soil N content at a greater rate for saprotrophs than ectomycorrhizal fungi, while fungal P% of saprotrophs was more constrained. Fungal N : P was more responsive to soil N : P for ectomycorrhizal fungi (homeostatic regulation coefficient 'H' = 2.9) than saprotrophs (H = 5.9), while N : P of ectomycorrhizal fungi and host tree foliage scaled almost identically. Results underscore the role of ectomycorrhizal fungi as nutrient conduits, supporting host trees, whereas saprotrophs maintain a greater degree of nutritional homeostasis. Site nutrient constraints were shared in equal measure between ectomycorrhizal fungi and host trees, particularly for P, suggesting neither partner benefits from enhanced nutrition at the expense of the other. Sporocarp stoichiometry provides new insights into mycorrhizal relationships and illustrates pervasive P deficiencies across temperate rainforests of the Pacific Northwest.
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Affiliation(s)
- J Marty Kranabetter
- British Columbia Ministry of Forests, Lands and Natural Resource Operations, PO Box 9536, Stn Prov Govt, Victoria, BC, V8W 9C4, Canada
| | - Rachael Harman-Denhoed
- Centre for Forest Biology, University of Victoria, PO Box 3020, STN CSC, Victoria, BC, V8W 3N5, Canada
| | - Barbara J Hawkins
- Centre for Forest Biology, University of Victoria, PO Box 3020, STN CSC, Victoria, BC, V8W 3N5, Canada
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Köhler J, Yang N, Pena R, Raghavan V, Polle A, Meier IC. Ectomycorrhizal fungal diversity increases phosphorus uptake efficiency of European beech. THE NEW PHYTOLOGIST 2018; 220:1200-1210. [PMID: 29770963 DOI: 10.1111/nph.15208] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 04/10/2018] [Indexed: 05/05/2023]
Abstract
Increases in summer droughts and nitrogen (N) deposition have raised concerns of widespread biodiversity loss and nutrient imbalances, but our understanding of the ecological role of ectomycorrhizal fungal (ECMF) diversity in mediating root functions remains a major knowledge gap. We used different global change scenarios to experimentally alter the composition of ECMF communities colonizing European beech saplings and examined the consequences for phosphorus (P) uptake (H333 PO4 feeding experiment) and use efficiencies of trees. Specifically, we simulated increases in temperature and N deposition and decreases in soil moisture and P availability in a factorial experiment. Here, we show that ECMF α diversity is a major factor contributing to root functioning under global change. P uptake efficiency of beech significantly increased with increasing ECMF species richness and diversity, as well as with decreasing P availability. As a consequence of decreases in ECMF diversity, P uptake efficiency decreased when soil moisture was limiting. By contrast, P use efficiencies were a direct (negative) function of P availability and not of ECMF diversity. We conclude that increasing summer droughts may reduce ECMF diversity and the complementarity of P uptake by ECMF species, which will add to negative growth effects expected from nutrient imbalances under global change.
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Affiliation(s)
- Julia Köhler
- Plant Ecology, Albrecht-von-Haller Institute for Plant Sciences, University of Goettingen, 37073, Goettingen, Germany
| | - Nan Yang
- Forest Botany and Tree Physiology, University of Goettingen, 37077, Goettingen, Germany
| | - Rodica Pena
- Forest Botany and Tree Physiology, University of Goettingen, 37077, Goettingen, Germany
| | - Venket Raghavan
- Plant Ecology, Albrecht-von-Haller Institute for Plant Sciences, University of Goettingen, 37073, Goettingen, Germany
| | - Andrea Polle
- Forest Botany and Tree Physiology, University of Goettingen, 37077, Goettingen, Germany
- Laboratory for Radio-Isotopes, University of Goettingen, 37077, Goettingen, Germany
| | - Ina C Meier
- Plant Ecology, Albrecht-von-Haller Institute for Plant Sciences, University of Goettingen, 37073, Goettingen, Germany
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13
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Veach AM, Stokes CE, Knoepp J, Jumpponen A, Baird R. Fungal Communities and Functional Guilds Shift Along an Elevational Gradient in the Southern Appalachian Mountains. MICROBIAL ECOLOGY 2018; 76:156-168. [PMID: 29204781 DOI: 10.1007/s00248-017-1116-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 11/20/2017] [Indexed: 05/03/2023]
Abstract
Nitrogen deposition alters forest ecosystems particularly in high elevation, montane habitats where nitrogen deposition is greatest and continues to increase. We collected soils across an elevational (788-1940 m) gradient, encompassing both abiotic (soil chemistry) and biotic (vegetation community) gradients, at eight locations in the southern Appalachian Mountains of southwestern North Carolina and eastern Tennessee. We measured soil chemistry (total N, C, extractable PO4, soil pH, cation exchange capacity [ECEC], percent base saturation [% BS]) and dissected soil fungal communities using ITS2 metabarcode Illumina MiSeq sequencing. Total soil N, C, PO4, % BS, and pH increased with elevation and plateaued at approximately 1400 m, whereas ECEC linearly increased and C/N decreased with elevation. Fungal communities differed among locations and were correlated with all chemical variables, except PO4, whereas OTU richness increased with total N. Several ecological guilds (i.e., ectomycorrhizae, saprotrophs, plant pathogens) differed in abundance among locations; specifically, saprotroph abundance, primarily attributable to genus Mortierella, was positively correlated with elevation. Ectomycorrhizae declined with total N and soil pH and increased with total C and PO4 where plant pathogens increased with total N and decreased with total C. Our results demonstrate significant turnover in taxonomic and functional fungal groups across elevational gradients which facilitate future predictions on forest ecosystem change in the southern Appalachians as nitrogen deposition rates increase and regional temperature and precipitation regimes shift.
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Affiliation(s)
- Allison M Veach
- Division of Biology, Kansas State University, Manhattan, KS, 66506, USA.
- Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, 37831, USA.
| | - C Elizabeth Stokes
- Department of Forest Products, Mississippi State University, Starkville, MS, 39762, USA
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Starkville, MS, 39762, USA
| | - Jennifer Knoepp
- USDA, Forest Service, Southern Research Station, Center for Forest Watershed Research, Coweeta Hydrologic Laboratory, Otto, NC, 28763, USA
| | - Ari Jumpponen
- Division of Biology, Kansas State University, Manhattan, KS, 66506, USA
| | - Richard Baird
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Starkville, MS, 39762, USA
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14
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Holec J, Kučera T. Hydnoid fungi of the family Bankeraceae – their assemblages and vegetation ecology in Central Europe, Czech Republic. FUNGAL ECOL 2018. [DOI: 10.1016/j.funeco.2017.11.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Kranabetter JM, Berch SM, MacKinnon JA, Ceska O, Dunn DE, Ott PK. Species-area curve and distance-decay relationships indicate habitat thresholds of ectomycorrhizal fungi in an old-growth Pseudotsuga menziesii
landscape. DIVERS DISTRIB 2018. [DOI: 10.1111/ddi.12720] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- J. M. Kranabetter
- British Columbia Ministry of Forests, Lands and Natural Resource Operations; Victoria BC Canada
| | - S. M. Berch
- British Columbia Ministry of Environment; Victoria BC Canada
| | - J. A. MacKinnon
- School of Resource and Environmental Management; Simon Fraser University; Burnaby BC Canada
| | - O. Ceska
- Consulting Mycologist; Victoria BC Canada
| | - D. E. Dunn
- Pacific Forestry Centre; Natural Resources Canada; Victoria BC Canada
| | - P. K. Ott
- British Columbia Ministry of Forests, Lands and Natural Resource Operations; Victoria BC Canada
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16
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Garcia MO, Smith JE, Luoma DL, Jones MD. Ectomycorrhizal communities of ponderosa pine and lodgepole pine in the south-central Oregon pumice zone. MYCORRHIZA 2016; 26:275-286. [PMID: 26547440 DOI: 10.1007/s00572-015-0668-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 10/29/2015] [Indexed: 06/05/2023]
Abstract
Forest ecosystems of the Pacific Northwest of the USA are changing as a result of climate change. Specifically, rise of global temperatures, decline of winter precipitation, earlier loss of snowpack, and increased summer drought are altering the range of Pinus contorta. Simultaneously, flux in environmental conditions within the historic P. contorta range may facilitate the encroachment of P. ponderosa into P. contorta territory. Furthermore, successful pine species migration may be constrained by the distribution or co-migration of ectomycorrhizal fungi (EMF). Knowledge of the linkages among soil fungal diversity, community structure, and environmental factors is critical to understanding the organization and stability of pine ecosystems. The objectives of this study were to establish a foundational knowledge of the EMF communities of P. ponderosa and P. contorta in the Deschutes National Forest, OR, USA, and to examine soil characteristics associated with community composition. We examined EMF root tips of P. ponderosa and P. contorta in soil cores and conducted soil chemistry analysis for P. ponderosa cores. Results indicate that Cenococcum geophilum, Rhizopogon salebrosus, and Inocybe flocculosa were dominant in both P. contorta and P. ponderosa soil cores. Rhizopogon spp. were ubiquitous in P. ponderosa cores. There was no significant difference in the species composition of EMF communities of P. ponderosa and P. contorta. Ordination analysis of P. ponderosa soils suggested that soil pH, plant-available phosphorus (Bray), total phosphorus (P), carbon (C), mineralizable nitrogen (N), ammonium (NH4), and nitrate (NO3) are driving EMF community composition in P. ponderosa stands. We found a significant linear relationship between EMF species richness and mineralizable N. In conclusion, P. ponderosa and P. contorta, within the Deschutes National Forest, share the same dominant EMF species, which implies that P. ponderosa may be able to successfully establish within the historic P. contorta range and dominant EMF assemblages may be conserved.
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Affiliation(s)
- Maria O Garcia
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97331, USA
- Department of Biology, Boston University, 5 Cummington Mall, Boston, MA, 02215, USA
| | - Jane E Smith
- US Department of Agriculture, Forest Service, Pacific Northwest Research Station, Forestry Sciences Laboratory, 3200 Jefferson Way, Corvallis, OR, 97331, USA.
| | - Daniel L Luoma
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97331, USA
| | - Melanie D Jones
- Biology Department, Institute for Biodiversity, Resilience and Ecosystem Services, University of British Columbia, Okanagan campus, Kelowna, British Columbia, V1V 1V7, Canada
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17
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Kranabetter JM, Hawkins BJ, Jones MD, Robbins S, Dyer T, Li T. Species turnover (β-diversity) in ectomycorrhizal fungi linked to NH4+ uptake capacity. Mol Ecol 2015; 24:5992-6005. [DOI: 10.1111/mec.13435] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/30/2015] [Accepted: 10/20/2015] [Indexed: 11/29/2022]
Affiliation(s)
- J. M. Kranabetter
- British Columbia Ministry of Forests, Lands and Natural Resource Operations; PO Box 9536 STN PROV GOVT Victoria British Columbia Canada V8W 9C4
| | - B. J. Hawkins
- Centre for Forest Biology; University of Victoria; PO Box 3020 STN CSC Victoria British Columbia Canada V8W 3N5
| | - M. D. Jones
- Biology Department; University of British Columbia; Okanagan Campus Sci-385 1177 Research Road Kelowna British Columbia Canada V4V 1V7
| | - S. Robbins
- Centre for Forest Biology; University of Victoria; PO Box 3020 STN CSC Victoria British Columbia Canada V8W 3N5
| | - T. Dyer
- Natural Resources Canada; Pacific Forestry Centre; 506 Burnside Road West Victoria British Columbia Canada V8Z 1M5
| | - T. Li
- Laboratory of Conservation and Utilization of Bio-resources; Yunnan University; 2# Cuihu Road North Kunming China
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18
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Paz CP, Gallon M, Putzke J, Ganade G. Changes in Macrofungal Communities Following Forest Conversion into Tree Plantations in Southern Brazil. Biotropica 2015. [DOI: 10.1111/btp.12240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Claudia P. Paz
- Universidade do Vale do Rio dos Sinos - UNISINOS; C.P. 275 CEP: 93001-970 São Leopoldo RS Brazil
- College of Marine and Environmental Sciences; James Cook University; PO Box 6811 4870 Cairns Qld Australia
| | - Mônica Gallon
- Universidade do Vale do Rio dos Sinos - UNISINOS; C.P. 275 CEP: 93001-970 São Leopoldo RS Brazil
| | - Jair Putzke
- Universidade de Santa Cruz do Sul - UNISC; C.P. 188 CEP: 96815-900 Santa Cruz do Sul RS Brazil
| | - Gislene Ganade
- Universidade do Vale do Rio dos Sinos - UNISINOS; C.P. 275 CEP: 93001-970 São Leopoldo RS Brazil
- Departamento de Ecologia; Centro de Biociências; Universidade Federal do Rio Grande do Norte - UFRN; CEP: 59078-900 Natal RN Brazil
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19
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Baral S, Thapa-Magar KB, Karki G, Devkota S, Shrestha BB. Macrofungal diversity in community-managed sal ( Shorea robusta) forests in central Nepal. Mycology 2015; 6:151-157. [PMID: 30151323 PMCID: PMC6106073 DOI: 10.1080/21501203.2015.1075232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 07/18/2015] [Indexed: 11/16/2022] Open
Abstract
Macrofungi constitute a group of the high-value forest resources worldwide. In this paper, we report species richness and composition of the macrofungi in sal (Shorea robusta) forests of mid-hill central Nepal, which were managed for 4-29 years by the local communities. The sal forests were rich in macrofungi (115 species) with Polyporaceae being the largest family followed by Clavariaceae. Saprotrophic fungi were more common than mycorrhizal species. The proportion of mycorrhiza was <40% of the total macrofungi species which might have indicated the deteriorated condition of the forests before the initiation of conservation management. However, the proportion of mycorrhizal species was slightly higher in the forests managed for >10 years than in the forests managed for short period. The species richness increased with increasing canopy and litter cover. Since silvicultural activities and resource utilization often have negative impacts to macrofungal diversity, these activities need to be optimized to keep balance between forest management and biodiversity conservation.
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Affiliation(s)
- Shova Baral
- Central Department of Botany, Tribhuvan University, Kathmandu, Nepal
| | | | - Ganesh Karki
- School of Environment and Management Studies (SchEMS), Pokhara University, Kathmandu, Nepal
| | - Shiva Devkota
- Central Department of Botany, Tribhuvan University, Kathmandu, Nepal
- Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Birmensdorf, Switzerland
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20
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Wang P, Zhang Y, Mi F, Tang X, He X, Cao Y, Liu C, Yang D, Dong J, Zhang K, Xu J. Recent advances in population genetics of ectomycorrhizal mushrooms Russula spp. Mycology 2015; 6:110-120. [PMID: 30151319 PMCID: PMC6106078 DOI: 10.1080/21501203.2015.1062810] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 06/11/2015] [Indexed: 12/15/2022] Open
Abstract
The mushroom genus Russula is among the largest and morphologically most diverse basidiomycete genera in the world. They are broadly distributed both geographically and ecologically, forming ectomycorrhizal relationships with a diversity of plants. Aside from their ecological roles, some Russula species are gourmet mushrooms. Therefore, understanding their population biology and fundamental life history processes are important for illustrating their ecological roles and for developing effective conservation and utilization strategies. Here, we review recent population genetic and molecular ecological studies of Russula. We focus on issues related to genet sizes, modes of reproduction, population structures, and roles of geography on their genetic relationships. The sampling strategies, molecule markers, and analytical approaches used in these studies will also be discussed. Our review suggests that in Russula, genets are typically small, local recombination is frequent, and that long-distance spore dispersal is relatively uncommon. We finish by discussing several long-standing issues as well as future trends with regard to life history and evolution of this important group of mushrooms.
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Affiliation(s)
- Pengfei Wang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Ying Zhang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Fei Mi
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Xiaozhao Tang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Xiaoxia He
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Yang Cao
- Yunnan Institute for Tropical Crop Research, Jinghong, Yunnan, PR China
| | - Chunli Liu
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Dan Yang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Jianyong Dong
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Keqing Zhang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
| | - Jianping Xu
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, Yunnan, PR China
- Department of Biology, McMaster University, Hamilton, Ontario, Canada
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21
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Poznanovic SK, Lilleskov EA, Webster CR. Sharing rotting wood in the shade: ectomycorrhizal communities of co-occurring birch and hemlock seedlings. MYCORRHIZA 2015; 25:153-164. [PMID: 25091153 DOI: 10.1007/s00572-014-0597-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 07/16/2014] [Indexed: 06/03/2023]
Abstract
Coarse woody debris (CWD) is an important nursery environment for many tree species. Understanding the communities of ectomycorrhizal fungi (ECMF)and the effect of ECMF species on tree seedling condition in CWD will elucidate the potential for ECMF-mediated effects on seedling dynamics. In hemlock-dominated stands, we characterized ECMF communities associated with eastern hemlock (Tsuga canadensis (L.) Carr) and yellow birch (Betula alleghaniensis Britt) seedling pairs growing on CWD. Seedling foliage and CWD were analyzed chemically, and seedling growth, canopy cover, and canopy species determined. Thirteen fungal taxa, 12 associated with birch, and 6 with hemlock, were identified based on morphology and ITS sequencing. Five species were shared by co-occurring birch and hemlock, representing 75% of ectomycorrhizal root tips. Rarified ECMF taxon richness per seedling was higher on birch than hemlock. Nonmetric multidimensional scaling revealed significant correlations between ordination axes, the mutually exclusive ECMF Tomentella and Lactarius spp., foliar N and K, CWD pH, and exchangeable Ca and Mg. Seedlings colonized by Lactarius and T. sublilacina differed significantly in foliar K and N, and CWD differed in exchangeable Ca and Mg. CWD pH and nutrient concentrations were low but foliar macro-nutrient concentrations were not. We hypothesize that the dominant ECMF are adapted to low root carbohydrate availability typical in shaded environments but differ in their relative supply of different nutrients.
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Affiliation(s)
- Sarah K Poznanovic
- School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive, Houghton, MI, 49931-1295, USA
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22
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Kennedy PG, Walker JKM, Bogar LM. Interspecific Mycorrhizal Networks and Non-networking Hosts: Exploring the Ecology of the Host Genus Alnus. ECOLOGICAL STUDIES 2015. [DOI: 10.1007/978-94-017-7395-9_8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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23
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Lothamer K, Brown SP, Mattox JD, Jumpponen A. Comparison of root-associated communities of native and non-native ectomycorrhizal hosts in an urban landscape. MYCORRHIZA 2014; 24:267-280. [PMID: 24221903 DOI: 10.1007/s00572-013-0539-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 10/28/2013] [Indexed: 06/02/2023]
Abstract
Non-native tree species are often used as ornamentals in urban landscapes. However, their root-associated fungal communities remain yet to be examined in detail. Here, we compared richness, diversity and community composition of ectomycorrhizosphere fungi in general and ectomycorrhizal (EcM) fungi in particular between a non-native Pinus nigra and a native Quercus macrocarpa across a growing season in urban parks using 454-pyrosequencing. Our data show that, while the ectomycorrhizosphere community richness and diversity did not differ between the two host, the EcM communities associated with the native host were often more species rich and included more exclusive members than those of the non-native hosts. In contrast, the ectomycorrhizosphere communities of the two hosts were compositionally clearly distinct in nonmetric multidimensional ordination analyses, whereas the EcM communities were only marginally so. Taken together, our data suggest EcM communities with broad host compatibilities and with a limited numbers of taxa with preference to the non-native host. Furthermore, many common fungi in the non-native Pinus were not EcM taxa, suggesting that the fungal communities of the non-native host may be enriched in non-mycorrhizal fungi at the cost of the EcM taxa. Finally, while our colonization estimates did not suggest a shortage in EcM inoculum for either host in urban parks, the differences in the fungi associated with the two hosts emphasize the importance of using native hosts in urban environments as a tool to conserve endemic fungal diversity and richness in man-made systems.
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Affiliation(s)
- K Lothamer
- Division of Biology, Kansas State University, Manhattan, KS, 66506, USA
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24
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Baird R, Wallace LE, Baker G, Scruggs M. Stipitate hydnoid fungi of the temperate southeastern United States. FUNGAL DIVERS 2013. [DOI: 10.1007/s13225-013-0261-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Ectomycorrhizal fungal diversity in Quercus ilex Mediterranean woodlands: variation among sites and over soil depth profiles in hyphal exploration types, species richness and community composition. Symbiosis 2013. [DOI: 10.1007/s13199-013-0252-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Ectomycorrhizal fungal communities of Quercus liaotungensis along local slopes in the temperate oak forests on the Loess Plateau, China. Ecol Res 2013. [DOI: 10.1007/s11284-012-1017-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Schirkonyer U, Bauer C, Rothe GM. Ectomycorrhizal diversity at five different tree species in forests of the Taunus Mountains in Central Germany. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/oje.2013.31009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Kranabetter JM, Stoehr MU, O'Neill GA. Divergence in ectomycorrhizal communities with foreign Douglas-fir populations and implications for assisted migration. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2012; 22:550-560. [PMID: 22611853 DOI: 10.1890/11-1514.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Assisted migration of forest trees has been widely proposed as a climate change adaptation strategy, but moving tree populations to match anticipated future climates may disrupt the geographically based, coevolved association suggested to exist between host trees and ectomycorrhizal fungal (EMF) communities. We explored this issue by examining the consistency of EMF communities among populations of 40 year-old Douglas-fir (Pseudotsuga menziesii var. menziesii) trees in a common-garden field trial using four provenances from contrasting coastal climates in southwestern British Columbia. Considerable variation in EMF community composition within test sites was found, ranging from 0.38 to 0.65 in the mean similarity index, and the divergence in EMF communities from local populations increased with site productivity. Clinal patterns in colonization success were detected for generalist and specialist EMF species on only the two productive test sites. Host population effects were limited to EMF species abundance rather than species loss, as richness per site averaged 15.0 among provenances and did not differ by transfer extent (up to 450 km), while Shannon's diversity index declined slightly. Large differences in colonization rates of specialist fungi, such as Tomentella stuposa and Clavulina cristata, raise the possibility that EMF communities maladapted to soil conditions contributed to the inferior growth of some host populations on productive sites. The results of the study suggest locally based specificity in host-fungal communities is likely a contributing factor in the outcome of provenance trials, and should be a consideration in analyzing seed-transfer effects and developing strategies for assisted migration.
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Affiliation(s)
- J M Kranabetter
- B.C. Ministry of Forests, Lands and Natural Resource Operations, P.O. Box 9536 Stn Prov Govt, Victoria, British Columbia V8W 9C4, Canada.
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29
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Diversity and ecology of epigeous ectomycorrhizal macrofungal assemblages in a native wet eucalypt forest in Tasmania, Australia. FUNGAL ECOL 2011. [DOI: 10.1016/j.funeco.2011.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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NEWBOUND MARK, BENNETT LAURENT, TIBBITS JOSQUIN, KASEL SABINE. Soil chemical properties, rather than landscape context, influence woodland fungal communities along an urban-rural gradient. AUSTRAL ECOL 2011. [DOI: 10.1111/j.1442-9993.2011.02269.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Crabtree CD, Keller HW, Ely JS. Macrofungi associated with vegetation and soils at Ha Ha Tonka State Park, Missouri. Mycologia 2010; 102:1229-39. [PMID: 20943573 DOI: 10.3852/08-138] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Fungi and vascular plant interactions are necessary components of natural community establishment, productivity and degradation. While many fungal species serve as decomposers of organic matter, others have evolved mutualistic or parasitic relationships with vascular plants. This research focused on characterizing associations among macrofungi, vascular plant communities and soils. Ha Ha Tonka State Park is in central Missouri and has a varying landscape with numerous natural community types that provide diverse habitats and microhabitats that are ideally suited to the investigation of fungal, floral and soil associations. Five communities sampled within the park included glades, open woodlands, flatwoods, closed-canopy forests and karst sinks. Permanent 0.01 ha. plots were surveyed in the 2006 and 2007 growing seasons. Surveys of plots and entire communities yielded 249 fungal taxa and approximately 265 floral taxa. Soils were analyzed to help define specific edaphic components of each community and used to associate soil attributes with plant and fungal communities. Forest communities contained the most ectomycorrhizal (ECM) fungi species. Karst sinks and glades had higher soil pH and phosphorus and fewer ectomycorrhizal fungi. Statistical analyses included non-metric multidimensional scaling, multiresponse permutation procedure and indicator species analysis. Indicator species were identified for flatwood, forest and karst communities, but results were inconclusive for glades and open woodlands.
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Affiliation(s)
- Christopher D Crabtree
- Department of Biology and Earth Science, University of Central Missouri, Warrensburg, Missouri 64093, USA.
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32
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Long-term dynamics of aboveground fungal communities in a subalpine Norway spruce forest under elevated nitrogen input. Oecologia 2010; 164:499-510. [DOI: 10.1007/s00442-010-1668-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2009] [Accepted: 05/17/2010] [Indexed: 11/28/2022]
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33
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Yamashita S, Hattori T, Ohkubo T, Nakashizuka T. Spatial distribution of the basidiocarps of aphyllophoraceous fungi in a tropical rainforest on Borneo Island, Malaysia. ACTA ACUST UNITED AC 2009; 113:1200-7. [DOI: 10.1016/j.mycres.2009.08.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2009] [Revised: 07/19/2009] [Accepted: 08/06/2009] [Indexed: 11/27/2022]
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34
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Kranabetter JM, Friesen J, Gamiet S, Kroeger P. Epigeous fruiting bodies of ectomycorrhizal fungi as indicators of soil fertility and associated nitrogen status of boreal forests. MYCORRHIZA 2009; 19:535-548. [PMID: 19449039 DOI: 10.1007/s00572-009-0255-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Accepted: 04/27/2009] [Indexed: 05/27/2023]
Abstract
Soil fertility and associated nitrogen (N) status was a key ecosystem attribute, and surveys of ectomycorrhizal fungal (EMF) communities via epigeous fruiting bodies could provide an effective biotic indicator of forest soil productivity. We explored the utility of aboveground EMF communities in this regard by surveying sporocarps over a 3-year period from contrasting plant associations of southern old-growth boreal forests of British Columbia (Canada). Cumulative richness ranged from 39 to 89 EMF species per plot (0.15 ha) and followed a skewed parabolic correlation with foliar N concentrations and soil N availability. EMF species composition was consistently distinct in ordinations and strongly correlated to the increasing rates of N mineralization aligned with soil productivity. Approximately 40 EMF species were specialists, as they collectively indicated oligotrophic, mesotrophic, and eutrophic nutrient regimes, while the remaining species were categorized as broadly tolerant (distributed over 100% of the N gradient), partially intolerant (approximately 70%), or satellites (rare). The functional organization of EMF communities reflected by distribution classes could help define the ecological integrity of forests, which was characterized in this boreal landscape by an average allotment of 20 broadly tolerant, 25 partially intolerant, 15 specialist, and ten satellite species per plot. Epigeous fruiting bodies provided a disparate yet complementary view to the belowground assessment of EMF communities that was valuable in identifying indicators for ecosystem monitoring.
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Affiliation(s)
- J M Kranabetter
- British Columbia Ministry of Forests and Range, 4300 North Rd, Victoria, BC, Canada, V8Z 5J3.
| | - J Friesen
- Jodi Friesen Ecological Consulting, P.O. Box 15, Site F, Hazelton, BC, Canada, V0J 1Y0
| | - S Gamiet
- Mycology Resources, P.O. Box 2603, Clearbrook Station, Abbotsford, BC, Canada, V2T 6R4
| | - P Kroeger
- , 395 E 40th Ave, Vancouver, BC, Canada, V5W 1M1
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Tsujino R, Yumoto T, Sato H, Imamura A. Topography-specific emergence of fungal fruiting bodies in warm temperate evergreen broad-leaved forests on Yakushima Island, Japan. MYCOSCIENCE 2009. [DOI: 10.1007/s10267-009-0494-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kranabetter JM, Durall DM, MacKenzie WH. Diversity and species distribution of ectomycorrhizal fungi along productivity gradients of a southern boreal forest. MYCORRHIZA 2009; 19:99-111. [PMID: 18941804 DOI: 10.1007/s00572-008-0208-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2008] [Accepted: 10/09/2008] [Indexed: 05/26/2023]
Abstract
Coniferous forests with diverse ectomycorrhizal fungus (EMF) communities are associated with nutrient-poor, acidic soils but there is some debate whether EMF can be equally adapted to more productive, nitrogen-rich sites. We compared EMF species distribution and diversity along a replicated productivity gradient in a southern boreal forest of British Columbia (Canada). Roots from subalpine fir (Abies lasiocarpa) saplings of the understory were sampled and EMF species were identified by morphotypes supplemented with ITS rDNA analysis. There were significant changes in the distribution and abundance of 74 EMF species along the productivity gradient, with as little as 24% community similarity among contrasting sites. Species richness per plot increased asymptotically with foliar nitrogen concentrations of subalpine fir, demonstrating that many EMF species were well suited to soils with high rates of nitrogen mineralization. EMF species abundance in relation to site productivity included parabolic, negative linear, and positive exponential curves. Both multi-site and more narrowly distributed EMF were documented, and a diverse mix of mantle exploration types was present across the entire productivity gradient. The results demonstrate strong associations of EMF fungal species with edaphic characteristics, especially nitrogen availability, and a specialization in EMF communities that may contribute to the successful exploitation of such contrasting extremes in soil fertility by a single tree host.
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Affiliation(s)
- J M Kranabetter
- British Columbia Ministry of Forests and Range, 4300 North Road, Victoria, BC, Canada, V8Z 5J3.
| | - D M Durall
- University of British Columbia-Okanagan, 3333 University Way, Kelowna, BC, Canada, V1V 1V7
| | - W H MacKenzie
- British Columbia Ministry of Forests and Range, Bag 6000, Smithers, BC, Canada, V0J 2N0
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Toberman H, Freeman C, Evans C, Fenner N, Artz RRE. Summer drought decreases soil fungal diversity and associated phenol oxidase activity in upland Calluna heathland soil. FEMS Microbiol Ecol 2008; 66:426-36. [PMID: 18662311 DOI: 10.1111/j.1574-6941.2008.00560.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Natural moisture limitation during summer drought can constitute a stress for microbial communities in soil. Given globally predicted increases in drought frequency, there is an urgent need for a greater understanding of the effects of drought events on soil microbial processes. Using a long-term field-scale drought manipulation experiment at Clocaenog, Wales, UK, we analysed fungal community dynamics, using internal transcribed spacer-denaturing gradient gel electrophoresis (DGGE), over a 1-year period in the 6th year of drought manipulation. Ambient seasonality was found to be the dominant factor driving variation in fungal community dynamics. The summer drought manipulation resulted in a significant decline in the abundance of dominant fungal species, both independently of, and in interaction with, this seasonal variation. Furthermore, soil moisture was significantly correlated with the changes in fungal diversity over the drought manipulation period. While the relationship between species diversity and functional diversity remains equivocal, phenol oxidase activity was decreased by the summer drought conditions and there was a significant correlation with the decline of DGGE band richness among the most dominant fungal species during the drought season. Climatically driven events such as droughts may have significant implications for fungal community diversity and therefore, have the potential to interfere with crucial ecosystem processes, such as organic matter decomposition.
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Affiliation(s)
- Hannah Toberman
- School of Biological Sciences, University of Bangor, Gwynedd, UK
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Hobbie EA, Hobbie JE. Natural Abundance of 15N in Nitrogen-Limited Forests and Tundra Can Estimate Nitrogen Cycling Through Mycorrhizal Fungi: A Review. Ecosystems 2008. [DOI: 10.1007/s10021-008-9159-7] [Citation(s) in RCA: 149] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Durall DM, Gamiet S, Simard SW, Kudrna L, Sakakibara SM. Effects of clearcut logging and tree species composition on the diversity and community composition of epigeous fruit bodies formed by ectomycorrhizal fungi. ACTA ACUST UNITED AC 2006. [DOI: 10.1139/b06-045] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The objective of this study was to examine the effects of stand age and tree species composition on the abundance, diversity, and community composition of epigeous fruit bodies formed by ectomycorrhizal (ECM) fungi in the Interior Cedar Hemlock zone of British Columbia. Fruit bodies were collected and identified in May, June, August, September, and October of 1996, 1997, 1998, and 1999 from transects located in new (5 year old) plantations and mature (75–125 year old) wild forests composed of relatively pure Betula papyrifera Marsh. (paper birch), relatively pure Pseudotsuga menziesii var. glauca (Beissn.) Franco (interior Douglas-fir), and mixtures of the two tree species. A total of 187 fungal taxa were collected during the study, of which 185 occurred in mature forests and only 17 occurred in the plantations. Thirty-four taxa were unique to mature predominantly birch forests, 35 were unique to mature predominantly Douglas-fir forests, 17 were unique to mixed mature forests, and 68 taxa were found in all three mature forest types. The abundance of fruit bodies in mature forests varied widely among sampling years and generally increased with annual precipitation. ECM species richness differed between stand ages but not among forest compositions in both plantations and mature forests. Lactarius glyciosmus , Hygrophorus eburneus var. eburneus , and Cortinarius armillatus were more abundant in mature birch than mature Douglas-fir forests. Lactarius torminosus , Leccinum scabrum var. scabrum , and Rozites caperatus were also found predominantly in mature birch and mixed forests, whereas Gomphidius subroseus was more abundant in Douglas-fir forests than in birch and mixed mature forests. Russula brevipes was also found predominantly in mature Douglas-fir and mixed forests. Our results indicate that clearcutting has a profound effect on abundance and composition of ECM fruit bodies, and that changes in forest tree species composition may lead to shifts in ECM fungal community composition.
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Affiliation(s)
- Daniel M. Durall
- Biology Department, University of British Columbia, 3333 University Way, Kelowna, BC V1V 1V7, Canada
- Mycology Resources, 356 Defehr Road, Abbotsford, BC V4X 2J8, Canada
- Forest Sciences Department, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
- Biology Department, Okanagan College, 1000 KLO Road, Kelowna, BC V1Y 4X8, Canada
| | - Sharmin Gamiet
- Biology Department, University of British Columbia, 3333 University Way, Kelowna, BC V1V 1V7, Canada
- Mycology Resources, 356 Defehr Road, Abbotsford, BC V4X 2J8, Canada
- Forest Sciences Department, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
- Biology Department, Okanagan College, 1000 KLO Road, Kelowna, BC V1Y 4X8, Canada
| | - Suzanne W. Simard
- Biology Department, University of British Columbia, 3333 University Way, Kelowna, BC V1V 1V7, Canada
- Mycology Resources, 356 Defehr Road, Abbotsford, BC V4X 2J8, Canada
- Forest Sciences Department, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
- Biology Department, Okanagan College, 1000 KLO Road, Kelowna, BC V1Y 4X8, Canada
| | - Lenka Kudrna
- Biology Department, University of British Columbia, 3333 University Way, Kelowna, BC V1V 1V7, Canada
- Mycology Resources, 356 Defehr Road, Abbotsford, BC V4X 2J8, Canada
- Forest Sciences Department, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
- Biology Department, Okanagan College, 1000 KLO Road, Kelowna, BC V1Y 4X8, Canada
| | - Stacey M. Sakakibara
- Biology Department, University of British Columbia, 3333 University Way, Kelowna, BC V1V 1V7, Canada
- Mycology Resources, 356 Defehr Road, Abbotsford, BC V4X 2J8, Canada
- Forest Sciences Department, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
- Biology Department, Okanagan College, 1000 KLO Road, Kelowna, BC V1Y 4X8, Canada
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Trudell SA, Rygiewicz PT, Edmonds RL. Patterns of nitrogen and carbon stable isotope ratios in macrofungi, plants and soils in two old-growth conifer forests. THE NEW PHYTOLOGIST 2004; 164:317-335. [PMID: 33873563 DOI: 10.1111/j.1469-8137.2004.01162.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
• To further assess the usefulness of stable isotope ratios for understanding elemental cycling and fungal ecology, we measured δ15 N and δ13 C in ectomycorrhizal and saprotrophic macrofungi, plants, woody debris and soils from two old-growth conifer forests in Olympic National Park, Washington, USA. • Ecosystem isotope patterns were similar at the two forests, but differences existed that appear to reflect soil nitrogen availability and C allocation within the ectomycorrhizal symbioses. δ15 N and δ13 C of ectomycorrhizal and saprotrophic fungi differed in both forests, and a dual δ15 N/δ13 C plot provided the best means of distinguishing them. Within both groups, δ15 N and δ13 C differed among genera and species, and the difference in species composition was an important determinant of the different overall δ15 N of the ectomycorrhizal fungi at the two forests. • Variation in multiple ecophysiological traits such as organic N use, mycelial morphology and transfer of N to phytobionts appears to underlie the variation in the isotope signatures of ectomycorrhizal fungi. • The varied isotope signatures of ectomycorrhizal fungi suggest considerable functional diversity among them. Life-history strategies could provide a framework for interpreting these patterns.
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Affiliation(s)
- Steven A Trudell
- Division of Ecosystem Sciences, College of Forest Resources, Box 352100, University of Washington, Seattle, WA 98195-2100, USA
| | - Paul T Rygiewicz
- Western Ecology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, 200 SW 35th Street, Corvallis, OR 97333, USA
| | - Robert L Edmonds
- Division of Ecosystem Sciences, College of Forest Resources, Box 352100, University of Washington, Seattle, WA 98195-2100, USA
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