Index Catalog // ScholarsArchive@OSU

Advances in the Analysis of Biogeochemical Interfaces: NanoSIMS to Investigate Soil Microenvironments

Creator:: Mueller, Carsten W., Weber, Peter K., Kilburn, Matt R., Hoeschen, Carmen, Kleber, Markus, and Pett-Ridge, Jennifer
Abstract:: Since a NanoSIMS high-resolution secondary ion mass spectrometry instrument was first used for cosmochemistry investigations over a decade ago, both interest in NanoSIMS and the number of instruments available have significantly increased. However, SIMS comes with a set of challenges that are of both technical and conceptual nature, particularly for...
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Full Text:: of SIMS by imaging Ca in ectomycorrhizal 403 fungi (Hebeloma cylindrosporum) associated with pine

Affinities of the Boletus chromapes group to Royoungia and the description of two new genera, Harrya and Australopilus

Creator:: Halling, Roy E., Nuhn, Mitchell, Osmundson, Todd, Fechner, Nigel, Trappe, James M., Soytong, Kasem, Arora, David, Hibbett, David S., and Binder, Manfred
Abstract:: Harrya is described as a new genus of Boletaceae to accommodate Boletus chromapes, a pink capped bolete with a finely scabrous stipe adorned with pink scabers, a chrome yellow base, and a reddish brown spore deposit. Phylogenetic analyses of large subunit rDNA and translation elongation factor 1α confirm Harrya as...
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Full Text:: , Chen KK. 1990. Ectomycorrhizal fungi associated with alpine conifers from 642 southwestern China

Arbutus menziesii (Ericaceae) facilitates regeneration dynamics in mixed evergreen forests by promoting mycorrhizal fungal diversity and host connectivity

Creator:: Kennedy, Peter G., Smith, Dylan P., Horton, Tom R., and Molina, Randy J.
Abstract:: • Premise of study: In the mixed evergreen forests in the western United States, Arbutus menziesii is able to quickly resprout following disturbance and, as such, act as a nurse tree during forest regeneration. The mechanism for this nurse tree effect has frequently been ascribed to mycorrhizal fungi, but no...
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Full Text:: ectomycorrhizal fungi, thereby maintaining [the] diversity and activity of the fungi needed for establish- ment

Australasian sequestrate fungi 18: Solioccasus polychromus gen. & sp. nov., a richly colored, tropical to subtropical, hypogeous fungus

Creator:: Trappe, James M., Castellano, Michael A., Halling, Roy E., Osmundson, Todd W., Binder, Manfred, Fechner, Nigel, and Malajczuk, Nicholas
Abstract:: Solioccasus polychromus gen. & sp. nov., the most brightly colored hypogeous fungus known, is described from Papua New Guinea and tropical northern Australia south into subtropical forests along the Queensland coast and coastal mountains to near Brisbane. Phylogenetic analysis of molecular data places it as a sister genus to Bothia...
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Full Text:: between two sympatric sister-species of ectomycorrhizal fungi, Rhizopogon vinicolor and R. vesiculosus

Calcium oxalate contribution to calcium cycling in forests of contrasting nutrient status

Creator:: Dauer, Jenny M. and Perakis, Steven S.
Abstract:: Calcium oxalate (Ca oxalate) is an insoluble biomineral that forms in plants and fungi, and occurs in soils across many types of ecosystems. Assessing how Ca oxalate may shape ecosystem Ca cycling requires information on the distribution of Ca oxalate among plant biomass, detritus, and mineral soil, and how it...
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Full Text:: that some species of white rot and ectomycorrhizal fungi are also capable of dissolving Ca oxalate

Climate change and forest disturbances

Creator:: Dale, Virginia H., Joyce, Linda A., McNulty, Steve, Neilson, Ronald P., Ayres, Matthew P., Flannigan, Michael D., Hanson, Paul J., Irland, Lloyd C., Lugo, Ariel E., Peterson, Chris J., Simberloff, Daniel, Swanson, Frederick J., Stocks, Brian J., and Wotton, B. Michael
Abstract:: Studies of the effects of climate change on forests have focused on the ability of species to tolerate temperature and moisture changes and to disperse, but they have ignored the effects of disturbances caused by climate change (e.g., Ojima et al. 1991).Yet modeling studies indicate the importance of climate effects...
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Full Text:: negative ef- fects on mycorrhizal fungi (Gehring et al. 1997, Ayres and Lombardero 2000). Other indirect

Climate change and forest disturbances

Creator:: Hale, Virginia H., Joyce, Linda A., McNulty, Steve, Neilson, Ronald P., Ayres, Matthew P., Flannigan, Michael D., Hanson, Paul J., Irland, Lloyd C., Lugo, Ariel E., Peterson, Chris J., Simberloff, Daniel, Swanson, Frederick J., Stocks, Brian J., and Wotton, B.Michael
Abstract:: Studies of the effects of climate change on forests have focused on the ability of species to tolerate temperature and moisture changes and to disperse, but they have ignored the effects of disturbances caused by climate change (e.g., Ojima et al. 1991). Yet modeling studies indicate the importance of climate...
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Full Text:: negative ef- fects on mycorrhizal fungi (Gehring et al. 1997, Ayres and Lombardero 2000). Other indirect

Contribution of Calcium Oxalate to Soil-Exchangeable Calcium

Creator:: Dauer, Jenny M. and Perakis, Steven S.
Abstract:: Acid deposition and repeated biomass harvest have decreased soil calcium (Ca) availability in many temperate forests worldwide, yet existing methods for assessing available soil Ca do not fully characterize soil Ca forms. To account for discrepancies in ecosystem Ca budgets, it has been hypothesized that the highly insoluble biomineral Ca...
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Full Text:: association with ectomycorrhizal fungal mats (Cromack et al., 1979) and in detritus with wood-rot fungi

Contributions of ectomycorrhizal fungal mats to forest soil respiration

Creator:: Phillips, C. L., Kluber, L. A., Martin, J. P., Caldwell, B. A., and Bond, B. J.
Abstract:: Distinct aggregations of fungal hyphae and rhizomorphs, or "mats", formed by some genera of ectomycorrhizal (EcM) fungi are common features of soils in coniferous forests of the Pacific Northwest. We measured in situ respiration rates of Piloderma mats and neighboring non-mat soils in an old-growth Douglas-fir forest in western Oregon...
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Full Text:: Contributions of ectomycorrhizal fungal mats to forest soil respiration C. L. Phillips1,4, L. A. Kluber2,3, J

Detection of plot-level changes in ectomycorrhizal communities across years in an old-growth mixed-conifer forest

Creator:: Izzo, Antonio, Agbowo, Josephine, and Bruns, Thomas D.
Abstract:: • Understanding spatial and temporal patterns present in ectomycorrhizal fungal community structure is critical to understanding both the scale and duration of the potential impact these fungi have on the plant community. While recent studies consider the spatial structure of ectomycorrhizal communities, few studies consider how this changes over time....
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Full Text:: : 31 August 2004 Accepted: 6 December 2004 Introduction Ectomycorrhizal (ECM) fungi

Diversity and productivity of hypogeous fungal sporocarps in a variably thinned Douglas-fir forest

Creator:: Colgan, Wesley, Carey, Andrew B., Trappe, James M., Molina, Randy, and Thysell, David
Abstract:: Although ecosystem management techniques are designed to enhance species diversity in managed forests, no comprehensive study has been conducted to evaluate effects of such techniques on diversity and productivity of hypogeous fungi (truffles). During this study, truffles were collected in a 55- to 65-year-old Douglas-fir forest from March 1993 through...
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Full Text:: focused on the peak spring and fall fruiting pe- riods of the truffles and other ectomycorrhizal fungi

Ecological effects of alternative fuel-reduction treatments: highlights of the National Fire and Fire Surrogate study (FFS)

Creator:: McIver, James D., Stephens, Scott L., Agee, James K., Barbour, Jamie, Boerner, Ralph E. J., Edminster, Carl B., Erickson, Karen L., Farris, Kerry L., Fettig, Christopher J., Fiedler, Carl E., Haase, Sally, Hart, Stephen C., Keeley, Jon E., Knapp, Eric E., Lehmkuhl, John F., Moghaddas, Jason J., Otrosina, William, Outcalt, Kenneth W., Schwilk, Dylan W., Skinner, Carl N., Waldrop, Thomas A., Weatherspoon, C. Phillip, Yaussy, Daniel A., Youngblood, Andrew, and Zack, Steve
Abstract:: The 12-site National Fire and Fire Surrogate study (FFS) was a multivariate experiment that evaluated ecological consequences of alternative fuel-reduction treatments in seasonally dry forests of the US. Each site was a replicated experiment with a common design that compared an un-manipulated control, prescribed fire, mechanical and mechanical + fire...
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Full Text:: penetration to the forest floor, which altered habitat for ectomycorrhizal fungi (Smith et al. 2005*) and

Ectomycorrhizal communities of ponderosa pine and lodgepole pine in the south-central Oregon pumice zone

Creator:: Garcia, Maria O., Smith, Jane E., Luoma, Daniel L., and Jones, Melanie D.
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....
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Effects of disturbance scale on soil microbial communities in the Western Cascades of Oregon

Creator:: Kageyama, Stacie A., Posavatz, Nancy R., Jones, Sarah S., Waterstripe, Kirk E., Bottomley, Peter J., Cromack Jr., Kermit, and Myrold, David D.
Abstract:: To gain a better understanding of how rapidly microbial communities respond to different magnitudes of perturbation that mimic minor or catastrophic disturbances. Two montane sites in the western Cascade Mountains of Oregon with adjacent areas of forest and meadow vegetation were studied. A reciprocal transplant experiment evaluated both minor (soil...
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Full Text:: by ectomycorrhizal fungi, although we cannot discount a shift in the saprotrophic fungal 468 Plant

Effects of vegetation patches on soil nutrient pools and fluxes within a mixed-conifer forest

Creator:: Erickson, Heather E., Soto, Patricia, Johnson, Dale W., Roath, Brent, and Hunsaker, Carolyn
Abstract:: At a spatially heterogeneous mixed-conifer forest in the central California Sierras, we quantified total carbon (C) and nitrogen (N), inorganic N, and net N mineralization in organic (O) and surface (0–15 cm) mineral soils, and in situ fluxes of inorganic N and ortho-phosphate using resin lysimeters under three patch types:...
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Full Text:: bodies of ectomycorrhizal fungi have been found in Ceanothus patches (M. North, personal com- munication

Exploring the phylogenetic affiliations and the trophic mode of Sedecula pulvinata (Sedeculaceae)

Creator:: Trappe, Matthew J., Smith, Matthew E., and Hobbie, Erik A.
Abstract:: Sedecula is a monotypic genus of hypogeous fungi that is rare and endemic to dry conifer forests of the western United States. The only known species, Sedecula pulvinata, was described in 1941 and its taxonomic placement and trophic status have remained uncertain ever since. Here we employ isotopic and molecular...
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Full Text:: (Boletales). Stable isotope comparisons with known ectomycorrhizal and saprotrophic fungi together with

Facilitative and competitive effecs of a N-fixing shrub on white fir saplings

Creator:: Oakley, Brian B., North, Malcolm P., and Franklin, Jerry F.
Abstract:: In Sierra Nevada forests, shrubs are considered strong soil moisture competitors with regenerating trees, reducing seedling establishment, and slowing growth. Recent studies, however, suggest that in some circumstances shrubs can facilitate tree establishment and growth by modifying harsh microclimate conditions; increasing acquisition of water, carbon, and/or nutrients via shared mycorrhizal...
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Full Text:: . Ectomycorrhizal fungi associated with Arctostaphylos contribute to Pseudotsuga menziesii establishment. Can. J

Facilitative and competive effects of a N-fixing shrub on white fir saplings

Creator:: Oakley, Brian B., North, Malcolm P., and Franklin, Jerry F.
Abstract:: In Sierra Nevada forests, shrubs are considered strong soil moisture competitors with regenerating trees, reducing seedling establishment, and slowing growth. Recent studies, however, suggest that in some circumstances shrubs can facilitate tree establishment and growth by modifying harsh microclimate conditions; increasing acquisition of water, carbon, and/or nutrients via shared mycorrhizal...
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Full Text:: . Ectomycorrhizal fungi associated with Arctostaphylos contribute to Pseudotsuga menziesii establishment. Can. J

Forest soil characteristics in a chronosequence of harvested Douglas-fir forests

Creator:: Griffiths, Robert P. and Swanson, Alan K.
Abstract:: This study was designed to measure the microbiological and chemical characteristics of forest soils in a chronosequence of harvested Douglas-fir (Pseusotsuga menziesii (Mirb.) Franco) stands in different climatic settings. Mineral soil samples were collected along transects running from old-growth (OG) forests into harvested stands of ages 5, 15, and 40...
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Full Text:: ectomycorrhizal fungi in forest productivity (Pankow et al. 1991; Read 1991), we examined effects of clear-cutting

Fungi in the diets of northern flying squirrels and lodgepole chipmunks in the Sierra Nevada

Creator:: Meyer, Marc D., North, Malcolm P., and Kelt, Douglas A.
Abstract:: The diets of a fungal specialist, northern flying squirrel (Glaucomys sabrinus (Shaw, 1801)), and a dietary generalist, lodgepole chipmunk (Neotamias speciosus (Merriam, 1890)), were examined in the old-growth, mixed-conifer forest at the Teakettle Experimental Forest in California’s southern Sierra Nevada. Spores of fungi were identified from fecal pellets collected from...
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Full Text:: ectomycorrhizal- fungi consumption by small mammals in remnant old-growth forests of the Sierra Nevada. J. Mammal

Geographic, climatic, and chemical differentiation in the Hypogymnia imshaugii species complex (Lecanoromycetes, Parmeliaceae) in North America

Creator:: McCune, Bruce, Schoch, Conrad, Root, Heather T., Kageyama, Stacie A., and Miadlikowska, Jolanta
Abstract:: Hypogymnia imshaugii is one of the most common, conspicuous and morphologically variable epiphytic lichens of the Pacific coastal states and provinces. The species varies greatly in morphology and chemistry, suggesting multiple closely related species or one or more phenotypically plastic species. We sought to determine whether additional ecologically meaningful species...
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High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales

Creator:: Healy, R. A., Smith, M. E., Bonito, G. M., Pfister, D. H., Ge, Z-W., Guevara, G. G., Williams, G., Stafford, K., Kumar, L., Lee, T., Hobart, C., Trappe, J., Vilgalys, R., and McLaughlin, D. J.
Abstract:: Fungal mitospores may function as dispersal units and/ or spermatia, and thus play a role in distribution and/or mating of species that produce them. Mitospore production in ectomycorrhizal (EcM) Pezizales is rarely reported, but here we document mitospore production by a high diversity of EcM Pezizales on three continents, in...
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Full Text:: Ectomycorrhizal (EcM) fungi are important plant symbionts that improve plant nutrient status 34 (Baxter

Hypogeous ectomycorrhizal fungal species on roots and in small mammal diet in a mixed-conifer forest

Creator:: Izzo, Antonio D., Meyer, Marc, Trappe, James M., North, Malcolm, and Bruns, Thomas D.
Abstract:: The purpose of this study was to estimate the portion of an ectomycorrhizal (ECM) fungi root community with a hypogeous fruiting habit. We used molecular methods (DNA sequence analysis of the internally transcribed spacer [ITS] region of rDNA) to compare three viewpoints: ECM fungi on the roots in a southern...
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Full Text:: ectomycorrhizal (ECM) fungi root community with a hypogeous fruiting habit. We used molecular methods (DNA

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Creator:: Pyare, Sanjay and Longland, William S.
Abstract:: During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in oldgrowth forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor for truffle diggings...
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Full Text:: ecological role by dispersing the spores of ectomycorrhizal fungi in their feces to the forest soil, where

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Creator:: Pyare, Sanjay and Longland, William S.
Abstract:: During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in old-growth forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor for truffle diggings...
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Full Text:: ecological role by dispersing the spores of ectomycorrhizal fungi in their feces to the forest soil, where

Introduction to the special issue on Sierran mixed-conifer research

Creator:: North, Malcolm and Chen, Jiquan
Abstract:: Like much of the western United States, California’s forest has been severely altered by a century of fire suppression. The Sierra Nevada’s largest forest type, mixed conifer, which is primary habitat for more vertebrate species than any other Californian forest community, historically burned every 12–17 years. In 1894, John Muir...
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Full Text:: found that the ectomycorrhizal community has a high per- centage of hypogeous (“truffle”) fungi, and

Kalapuya brunnea gen. & sp. nov. and its relationship to the other sequestrate genera in Morchellaceae

Creator:: Trappe, Matthew J., Trappe, James M., and Bonito, Gregory M.
Abstract:: Kalapuya is described as a new, monotypic truffle genus in the Morchellaceae known only from the Pacific northwestern United States. Its relationship to other hypogeous genera within Morchellaceae is explored by phylogenetic analysis of the ribosomal LSU and EF1α protein coding region. The type species, K. brunnea, occurs in Douglas-fir...
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Full Text:: status is unconfirmed but it is thought to be an 116 obligate ectomycorrhizal symbiont with Douglas-fir

Metagenome sequence of Elaphomyces granulatus from sporocarp tissue reveals Ascomycota ectomycorrhizal fingerprints of genome expansion and a Proteobacteria-rich microbiome

Creator:: Quandt, C. Alisha, Kohler, Annegret, Hesse, Cedar N., Sharpton, Thomas J., Martin, Francis, and Spatafora, Joseph W.
Abstract:: Many obligate symbiotic fungi are difficult to maintain in culture, and there is a growing need for alternative approaches to obtaining tissue and subsequent genomic assemblies from such species. In this study, the genome of Elaphomyces granulatus was sequenced from sporocarp tissue. The genome assembly remains on many contigs, but...
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Full Text:: (Elaphomycetaceae, Eurotiales) is an ectomycorrhizal genus of fungi with broad host associa- tions that include both

Microhabitat associations of northern flying squirrels in burned and thinned forest stands of the Sierra Nevada

Creator:: Meyer, Marc D., Kelt, Douglas A., and North, Malcolm P.
Abstract:: Prescribed burning and mechanical thinning are used to manage fuels within many western North American forest ecosystems, but few studies have examined the relative impacts of these treatments on forest wildlife. We sampled northern flying squirrels (Glaucomys sabrinus) and microhabitat variables in burned, thinned and control stands of mixed-conifer forest...
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Full Text:: ectomycorrhizal-fungi consumption by small mammals in remnant old-growth forests of the Sierra Nevada. Journal of

Microhabitat associations of northern flying squirrels in burned and thinned forest stands of the Sierra Nevada

Creator:: Meyer, Marc D., Kelt, Douglas A., and North, Malcolm P.
Abstract:: Prescribed burning and mechanical thinning are used to manage fuels within many western North American forest ecosystems, but few studies have examined the relative impacts of these treatments on forest wildlife. We sampled northern flying squirrels (Glaucomys sabrinus) and microhabitat variables in burned, thinned and control stands of mixed-conifer forest...
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Full Text:: ectomycorrhizal-fungi consumption by small mammals in remnant old-growth forests of the Sierra Nevada. Journal of

Nest trees of northern flying squirrels in the Sierra Nevada

Creator:: Meyer, Marc D., Kelt, Douglas A., and North, Malcolm P.
Abstract:: We examined the nest-tree preferences of northern flying squirrels (Glaucomys sabrinus) in an old-growth, mixed-conifer and red fir (Abies magnifica) forest of the southern Sierra Nevada of California. We tracked 27 individuals to 122 nest trees during 3 summers. Flying squirrels selected nest trees that were larger in diameter and...
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Full Text:: ., AND W. S. LONGLAND. 2001. Patterns of ectomycorrhizal- fungi consumption by small mammals in remnant

New North American truffles (Tuber spp.) and their ectomycorrhizal associations

Creator:: Guevara, Gonzalo, Bonito, Gregory, Trappe, James M., Cazares, Efren, Williams, Gwendolyn, Healy, Rosanne A., Schadt, Christopher, and Vilgalys, Rytas
Abstract:: Recent surveys of belowground fungal biodiversity in Mexico and USA have revealed many undescribed truffle species, including many in the genus Tuber. Here we describe seven new species: Tuber beyerlei, T. castilloi, T. guevarai, T. lauryi, T. mexiusanum, T. miquihuanense and T. walkeri. Phylogenetic analyses place these species within the...
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Full Text:: ectomycorrhizal associations Gonzalo Guevara Instituto Tecnológico de Cd. Victoria, Avenue Portes Gil 1301 Pte

Relationships between Swiss needle cast and ectomycorrhizal fungus diversity

Creator:: Luoma, Daniel L. and Eberhart, Joyce L.
Abstract:: Swiss needle cast (SNC) is a disease specific to Douglas-fir (Pseudotsuga menziesii) caused by the ascomycete Phaeocryptopus gaeumannii. Here we examine characteristics of the EM fungus community that are potentially useful in predictive models that would monitor forest health. We found that mean EM density (number of colonized root tips/soil...
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Full Text:: potential links between ectomycorrhizal (EM) fungi and SNC. Ectomycorrhizal fungi are essential for host

Rhizopogon togasawariana sp. nov., the first report of Rhizopogon associated with an Asian species of Pseudotsuga

Creator:: Mujic, Alija B., Hosaka, Kentaro, and Spatafora, Joseph W.
Abstract:: Rhizopogon subgenus Villosuli are the only members of the genus known to form an ectomycorrhizal relationship exclusively with Pseudotsuga. The specificity of this host relationship is unusual in that Rhizopogon is broadly associated with several tree genera within the Pinaceae and relationships with a host genus are typically distributed across...
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Full Text:: Rhizopogon is a large genus of ectomycorrhizal (EM) fungi (Basidiomycota: Boletales) that produce hypo- geous

Sequestrate fungi from Patagonian Nothofagus forests: Cystangium (Russulaceae, Basidiomycota)

Creator:: Trierveiler-Pereira, Larissa, Smith, Matthew E., Trappe, James M., and Nouhra, Eduardo R.
Abstract:: Six species of Cystangium, a genus of sequestrate taxa related to Russula, were collected in Patagonia (Argentina and Chile) during autumn 2001. Two species, C. depauperatum Singer & A.H. Sm. and C. nothofagi (E. Horak) Trappe, Castellano & T. Lebel, were already known from this region, while four new species,...
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Full Text:: the truffle-forming fungi. Ectomycorrhizal, hypogeous fungi in the Basidio- mycota and Ascomycota are

Shared compatibility of ectomycorrhizae on Pseudotsuga menziesii and Betula papyrifera seedlings grown in mixture in soils from southern British Columbia

Creator:: Simard, Suzanne W., Molina, Randy, Smith, Jane E., Perry, David A., and Jones, Melanie D.
Abstract:: Seedlings of Pseudotsuga menziesii (Mirb.) Franco and Betula papyrifera Marsh. were grown in the greenhouse in monoculture and dual culture in soils collected from a young mixed species plantation in the southern interior of British Columbia. The objectives of the study were (i) to evaluate the ability of P. menziesii...
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Full Text:: share compatible ectomycorrhizal fungi in order to assess their potential for hyphal linkages and (ii

Short and long-term effects of prescribed underburning on nitrogen availability in ponderosa pine stands in central Oregon

Creator:: Monleon, Vicente J., Cromack, Kermit, and Landsberg, Johanna D.
Abstract:: The effects of prescribed underburning on soil total C pools, total and inorganic N pools, and in situ net N mineralization were examined during a 1-year study in ponderosa pine (Pinus ponderosa Dougl. ex P. & C. Laws.) sites that had been experimentally burned 4 months, 5 years, or 12...
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Full Text:: . Recent work by Bending and Read (1995) and Turnbull et al. (1995) indicates that mycorrhizal fungi may

Short-term effects of fire and forest thinning on truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada

Creator:: Meyer, Marc D., North, Malcolm P., and Kelt, Douglas A.
Abstract:: In many western North American forests, prescribed burning and mechanical thinning are widely used to reduce fuels and restore stand conditions after a century of fire suppression. Few studies have followed the relative impacts of these treatments on the production and consumption of truffles in forest ecosystems, particularly in the...
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Full Text:: functional component of forest ecosystems are ectomycorrhizal fungi (EMF), required by most temper- ate

Short-term effects of fire and forest thinning on truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada of California

Creator:: Meyer, Marc D., North, Malcolm P., and Kelt, Douglas A.
Abstract:: In many western North American forests, prescribed burning and mechanical thinning are widely used to reduce fuels and restore stand conditions after a century of fire suppression. Few studies have followed the relative impacts of these treatments on the production and consumption of truffles in forest ecosystems, particularly in the...
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Full Text:: functional component of forest ecosystems are ectomycorrhizal fungi (EMF), required by most temper- ate

Spatial structure and richness of ectomycorrhizal fungi colonizing bioassay seedlings from resistan propagules in a Sierra Nevada forest: comparisons using two hosts that exhibit different seedling establishment patterns

Creator:: Izzo, Antonio, Nguyen, Diem Thi, and Bruns, Thomas D.
Abstract:: In this study we analyzed the spatial structure of ectomycorrhizal fungi present in the soils as resistant propagules (e.g. spores or sclerotia) in a mixed-conifer forest in the Sierra Nevada, California. Soils were collected under old-growth Abies spp. stands across approximately 1 km and bioassayed with seedlings of hosts that...
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Full Text:: Spatial structure and richness of ectomycorrhizal fungi

Stand conditions associated with tree regeneration in Sierran mixed-conifer forests

Creator:: Gray, Andrew N., Zald, Harold S.J., Kern, Ruth A., and North, Malcolm
Abstract:: Fire suppression has significantly increased canopy cover, litter depth, and stem density in many western forests, altering microsite conditions that affect tree seedling establishment. We conducted studies in a mixed-conifer forest in the Sierra Nevada, California, to determine relationships between established understory trees and microsite quality, and to examine the...
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Full Text:: extremes, sharing of ectomycorrhizal fungi, or enriching available soil nitrogen (Tappeiner and Helms 1971

The effects of heat treatments on ectomycorrhizal resistant propagules and their ability to colonize bioassay seedlings

Creator:: Izzo, Antonio, Canright, Megan, and Bruns, Thomas D.
Abstract:: The effect of disturbance on the resistant propagule community (RPC) of ectomycorrhizal fungi has been given relatively little attention. In this study we investigate the effects of heat, one important factor of fire disturbances, on the ability of ectomycorrhizal RPC fungi to colonize Pinus jeffreyi seedlings in greenhouse bioassays. Prior...
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Full Text:: important factor of fire disturbances, on the ability of ectomycorrhizal RPC fungi to colonize Pinus

The genome of Xylona heveae provides a window into fungal endophytism

Creator:: Gazis, Romina, Kuo, Alan, Riley, Robert, Labutti, Kurt, Lipzen, Anna, Lin, Junyan, Amirebrahimi, Mojgan, Hesse, Cedar N., Spatafora, Joseph W., Henrissat, Bernard, Hainaut, Matthieu, Grigoriev, Igor V., and Hibbett, David S.
Abstract:: Xylona heveae has only been isolated as an endophyte of rubber trees. In an effort to understand the genetic basis of endophytism, we compared the genome contents of X. heveae and 36 other Ascomycota with diverse lifestyles and nutritional modes. We focused on genes that are known to be important...
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Full Text:: the JGI fungal genome portal MycoCosm (http:// jgi.doe.gov/fungi). The genome of X. heveae can be

The Paleozoic Origin of Enzymatic Lignin Decomposition Reconstructed from 31 Fungal Genomes

Creator:: Floudas, Dimitrios, Yadav, Jagjit S., Aerts, Andrea, Benoit, Isabelle, Boyd, Alex, Carlson, Alexis, Copeland, Alex, Coutinho, Pedro M., de Vries, Ronald P., Ferreira, Patricia, Findley, Keisha, Binder, Manfred, Foster, Brian, Gaskell, Jill, Glotzer, Dylan, Gorecki, Pawel, Heitman, Joseph, Hesse, Cedar, Hori, Chiaki, Igarashi, Kiyohiko, Jurgens, Joel A., Kallen, Nathan, Riley, Robert, Kersten, Phil, Kohler, Annegret, Kues, Ursula, Kumar, T. K. Arun, Kuo, Alan, LaButti, Kurt, Larrondo, Luis F., Lindquist, Erika, Ling, Albee, Lombard, Vincent, Barry, Kerrie, Lucas, Susan, Lundell, Taina, Martin, Rachael, McLaughlin, David J., Morgenstern, Ingo, Morin, Emanuelle, Murat, Claude, Nagy, Laszlo G., Nolan, Matt, Ohm, Robin A., Blanchette, Robert A., Patyshakuliyeva, Aleksandrina, Rokas, Antonis, Ruiz-Duenas, Francisco J., Sabat, Grzegorz, Salamov, Asaf, Samejima, Masahiro, Schmutz, Jeremy, Slot, Jason C., St. John, Franz, Stenlid, Jan, Henrissat, Bernard, Sun, Hui, Sun, Sheng, Syed, Khajamohiddin, Tsang, Adrian, Wiebenga, Ad, Young, Darcy, Pisabarro, Antonio, Eastwood, Daniel C., Martin, Francis, Cullen, Dan, Martínez, Angel T., Grigoriev, Igor V., Hibbett, David S., Otillar, Robert, and Spatafora, Joseph W.
Abstract:: Wood is a major pool of organic carbon that is highly resistant to decay, owing largely to the presence of lignin. The only organisms capable of substantial lignin decay are white rot fungi in the Agaricomycetes, which also contains non–lignin-degrading brown rot and ectomycorrhizal species. Comparative analyses of 31 fungal...
Resource Type:: Article

Toward genome-enabled mycology

Creator:: Hibbett, David S., Stajich, Jason E., and Spatafora, Joseph W.
Abstract:: Genome-enabled mycology is a rapidly expanding field that is characterized by the pervasive use of genome-scale data and associated computational tools in all aspects of fungal biology. Genome-enabled mycology is integrative and often requires teams of researchers with diverse skills in organismal mycology, bioinformatics and molecular biology. This issue of...
Resource Type:: Article
Full Text:: genomes and enable all fungal biologists to make use of the new data. Key words: bioinformatics, fungi

Truffle abundance in riparian and upland mixed-conifer forest of California's southern Sierra Nevada

Creator:: Meyer, Marc D. and North, Malcolm P.
Abstract:: We compared the abundance, diversity, and composition of truffles in riparian and upland areas within a mixed-conifer forest of the Sierra Nevada of California. We sampled for truffles in a single watershed over two seasons (spring and summer) and 4 years to determine whether truffles were more abundant and diverse...
Resource Type:: Article
Full Text:: . Johnson, C.N. 1996. Interactions between mammals and ectomycorrhizal fungi. Trends Ecol. Evol. 11: 503–507

Twenty years of research on fungus-microbe-plant interactions on Lyman Glacier forefront – lessons learned and questions yet unanswered

Creator:: Jumpponen, Ari, Brown, Shawn P., Trappe, James M., Cazares, Efren, and Strommer, Rauni
Abstract:: Retreating glaciers and the periglacial areas they vacate for organismal colonization produce a harsh environment of extreme radiation, nutrient limitations, and temperature oscillations. They provide a model system for studying mechanisms that drive establishment and early assembly of communities. Here, we synthesize more than twenty years of research at the...
Resource Type:: Article
Full Text:: little elevational 86 change, (3) a subalpine habitat to allow establishment of ectomycorrhizal (EcM

Within-population genetic structure differs between two sympatric sister-species of ectomycorrhizal fungi, Rhizopogon vinicolor and R. vesiculosus

Creator:: Dunham, Susie M., Mujic, Alija Bajro, Spatafora, Joseph W., and Kretzer, Annette M.
Abstract:: Using spatial autocorrelation analysis, we examined the within-population genetic structure of Rhizopogon vinicolor and R. vesiculosus, two hypogeous ectomycorrhizal (EM) species that are sympatric sister taxa known to differ in their clonal structure. We collected 121 sporocarps and 482 tuberculate EM of both species from a 20 ha forest stand...
Resource Type:: Article
Full Text:: sympatric sister-species of ectomycorrhizal fungi, Rhizopogon vinicolor and R. vesiculosus Susie M. Dunham1

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