Ectomycorrhizal fungal communities associated to Nothofagus species in Northern Patagonia

Nouhra, Eduardo; Urcelay, Carlos; Longo, Sergio Enrico Favero; Tedersoo, Leho

doi:10.1007/s00572-013-0490-2

Cited by 64 publications

(56 citation statements)

References 44 publications

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“…These taxa so far have been found associated exclusively with N. pumilio. "N. vinicolor" is easy to detect in the field by the dark red color of its periferical mat-like mycelium and has been observed in several Andean N. pumilio forests and in the coastal mountains of south-central Chile 41 found similar EM genera to those described in this study.…”

Section: Examples Of These Common Species Are Austropaxillus Boletinosupporting

confidence: 82%

Diversity and growth-effects of ectomycorrhizal fungi of a Nothofagus pumilio forest in the Andes of Southern Chile

Marín

Valenzuela

Godoy³

et al. 2018

Bol. Micol.

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Chilean temperate rainforests have unique climatic, edaphic and biotic conditions, constituting pre-industrial blueprint ecosystems. Mycorrhizal associations play a central role in the biogeochemical processes of these ecosystems´ functioning. Baseline forest ecology studies are necessary in order to better understand diversity patterns, specifically regarding mycorrhizal symbiosis. Therefore, here we describe the vegetation characteristics and the mycorrhizal relationships of vascular plants in a Nothofagus pumilio forest. We also describe, via morphological methods, the ectomycorrhizal diversity present in this forest. Additionally, we determined whether ectomycorrhizal inoculation confers positive growth effects on N. pumilio seedlings. We found that from 46 vascular plant species identified in this study, 42 (91%) were mycorrhizal and of these 33 (72%) were associated with arbuscular mycorrhizae (AM), two (the dominant trees N. pumilio and N. dombeyi) were forming ectomycorrhizae (EM), five were associated with ericoid mycorrhizae, two with orchid mycorrhizae, and four were nonmycorrhizal. Additionally, 26 EM species were detected of which 15 belong to Cortinarius. Finally, there were clear differences in the growth of N. pumilio seedlings inoculated with the ectomycorrhizal fungus Laccaria laccata compared to noninoculated plants. We suggest that mycorrhizal fungi play a key role in seedling colonization of harsh environments such as the Andean treeline. RESUMENLos bosques templados lluviosos de Chile tienen condiciones climáticas, edáficas y bióticas únicas, constituyendo ecosistemas preindustriales modelo. Las asociaciones micorrízicas juegan un rol central en los procesos biogeoquímicos del funcionamiento de estos ecosistemas. Por lo tanto, en este estudio describimos las características de la vegetación y las relaciones micorrízicas de las plantas vasculares de un bosque de Nothofagus pumilio. También describimos, vía métodos morfológicos, la diversidad ectomicorrízica presente en este bosque. Adicionalmente, determinamos si inoculaciones ectomicorrízicas confieren efectos de crecimiento positivos a semilleros de N. pumilio. Encontramos que, de 46 especies de plantas vasculares identificadas en este estudio, 42 (91%) son micorrízicas, y de estas, 33 (72%) están formando micorrizas arbusculares (AM), dos (los árboles dominantes N. pumilio y N. dombeyi) están asociados con ectomicorrizas (EM), cinco están asociadas con micorrizas ericoides, dos con micorrizas orquioides, y cuatro fueron nomicorrizadas. Adicionalmente, 26 especies de EM fueron detectadas, de las cuales 15 pertenecen a Cortinarius. Finalmente, hubo claras diferencias en el crecimiento de los semilleros de N. pumilio inoculados con el hongo ectomicorrízico Laccaria laccata, comparados a plantas no inoculadas. Sugerimos que los hongos micorrízicos juegan un rol clave en la colonización de ambientes severos por juveniles, como en el límite altitudinal andino.

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Section: Examples Of These Common Species Are Austropaxillus Boletinosupporting

confidence: 82%

Diversity and growth-effects of ectomycorrhizal fungi of a Nothofagus pumilio forest in the Andes of Southern Chile

Marín

Valenzuela

Godoy³

et al. 2018

Bol. Micol.

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“…The BLAST hits for these sequences all included sequences deposited by Nouhra et al . (), who carried out substantial below‐ground sampling in a pristine Nothofagus forest < 200 km from our sampling site. Top GenBank blast hits included sufficient alignable sequences for informative placement only of the Inocybe OTUs; the phylogeny generated for these OTUs is included as Fig.…”

Section: Resultsmentioning

confidence: 99%

Ectomycorrhizal fungal communities coinvading with Pinaceae host plants in Argentina: Gringos bajo el bosque

2015

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SummaryCoinvasive ectomycorrhizal (ECM) fungi allow Pinaceae species to invade regions otherwise lacking compatible symbionts, but ECM fungal communities permitting Pinaceae invasions are poorly understood. In the context of Pinaceae invasions on Isla Victoria, Nahuel Huapi National Park, Argentina, we asked: what ECM fungi are coinvading with Pinaceae hosts on Isla Victoria; are some ECM fungal species or genera more prone to invade than others; and are all ECM fungal species that associate with Northern Hemisphere hosts also nonnative, or are some native fungi compatible with nonnative plants?We sampled ECMs from 226 Pinaceae host plant individuals, both planted individuals and recruits, growing inside and invading from plantations. We used molecular techniques to examine ECM fungal communities associating with these trees.A distinctive subset of the ECM fungal community predominated far from plantations, indicating differences between highly invasive and less invasive ECM fungi. Some fungal invaders reported here have been detected in other locations around the world, suggesting strong invasion potential.Fungi that were frequently detected far from plantations are often found in early-successional sites in the native range, while fungi identified as late-successional species in the native range are rarely found far from plantations, suggesting a means for predicting potential fungal coinvaders.

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“…Further we identified four previous environmental sequences belonging to Psathyloma (FIG. 2), three of which have been isolated from Nothofagus forests in Argentina (as uncultured Hebeloma clones) forming a species-level clade nested within Psathyloma (Fernández et al 2013, Nouhra et al 2013). In addition, an environmental sequence from Tasmanian Eucalyptus forests (Horton 2011 …”

Section: Resultsmentioning

confidence: 99%

“…2;Tedersoo et al 2009, Horton 2011, Nouhra et al 2013, Fernández et al 2013. This is the first example known to us of ectomycorrhizal fungi with basidiospores having an apical germ pore.…”

Section: Cooper Jac13340 (Holotype Pdd 105593) Genbank Kt591549 (Itsmentioning

confidence: 99%

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Psathyloma, a new genus in Hymenogastraceae described from New Zealand

et al. 2016

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Abstract:A new genus Psathyloma is described based on collections of agarics from New Zealand. We describe two new species in the genus, Ps. leucocarpum and Ps. catervatim, both of which have been known and tentatively named for a long time awaiting a formal description. Morphological traits and phylogenetic analyses reveal that Psathyloma forms a strongly supported sister clade to Hebeloma, Naucoria and Hymenogaster. Morphologically Psathyloma resembles Hebeloma from which it differs mainly by producing smooth basidiospores with a germ pore. The geographical range of the genus has been demonstrated to include several regions in the southern hemisphere. A survey of published environmental sequences reveals that Psathyloma spp. were isolated from ectomycorrhizal root tips from Tasmania and Argentina, indicating an ectomycorrhizal association with southern beech.

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Ectomycorrhizal fungal communities associated to Nothofagus species in Northern Patagonia

Cited by 64 publications

References 44 publications

Diversity and growth-effects of ectomycorrhizal fungi of a Nothofagus pumilio forest in the Andes of Southern Chile

Diversity and growth-effects of ectomycorrhizal fungi of a Nothofagus pumilio forest in the Andes of Southern Chile

Ectomycorrhizal fungal communities coinvading with Pinaceae host plants in Argentina: Gringos bajo el bosque

Psathyloma, a new genus in Hymenogastraceae described from New Zealand

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