Influence of Sphaerosporella Brunnea Mycorrhiza on the Growth of Quercus Robur and Castenea Satina

Meotto, F.; Martini, I.; Carraturo, P.

doi:10.1007/978-94-011-2866-7_143

Responses of Forest Ecosystems to Environmental Changes 1992

DOI: 10.1007/978-94-011-2866-7_143

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Influence of Sphaerosporella Brunnea Mycorrhiza on the Growth of Quercus Robur and Castenea Satina

F. Meotto¹,

I. Martini²,

P. Carraturo³

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2020

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“…The ability to form mycorrhizae was not shared by related taxa Anthracobia melaloma, Trichophaea (Sphaerospora) minuta, T. contradicta, and T. abundans in inoculation tests of containerized Jack pine (Danielson, 1984). Sphaerosporella "brunnea" appears to have a broad host range and was reported as ectomycorrhizal on Pinus banksiana, Picea, Larix, and Populus (Danielson, 1984) and Quercus robur and Castanea sativa (as Castenea satina in title) (Meotto et al, 1992) and was identified by sequences from root tips from a Quercus ilex forest in northern Spain (de Román and de Miguel, 2005).…”

mentioning

confidence: 95%

Secret lifestyles of pyrophilous fungi in the genus Sphaerosporella

Hughes

Case

Matheny

et al. 2020

American J of Botany

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Premise Pyrophilous fungi form aboveground fruiting structures (ascocarps) following wildfires, but their ecology, natural history, and life cycles in the absence of wildfires are largely unknown. Sphaerosporella is considered to be pyrophilous. This study explores Sphaerosporella ascocarp appearance following a rare 2016 wildfire in the Great Smoky Mountains National Park (GSMNP), compares the timing of ascocarp formation with recovery of Sphaerosporella DNA sequences in soils, and explores the association of Sphaerosporella with post‐fire Table Mountain pine ( Pinus pungens ) seedlings. Methods Burned sites in the GSMNP were surveyed for pyrophilous fungal ascocarps over 2 years. Ascocarps, mycorrhizae, and endophyte cultures were evaluated morphologically and by Sanger sequencing of the nuclear ribosomal ITS gene region (fungal barcode; Schoch et al., 2012). DNA from soil cores was subjected to Illumina sequencing. Results The timing and location of post‐fire Sphaerosporella ascocarp formation was correlated with recovery of Sphaerosporella DNA sequences in soils. Genetic markers (fungal barcode) of Sphaerosporella were also recovered from mycorrhizal root tips and endophyte cultures from seedlings of Pinus pungens . Conclusions This study demonstrates that Sphaerosporella species , in the absence of fire , are biotrophic, forming both mycorrhizal and endophytic associations with developing Pinus pungens seedlings and may persist in nature in the absence of wildfire as a conifer symbiont. We speculate that Sphaerosporella may fruit only after the host plant is damaged or destroyed and that after wildfires, deep roots, needle endophytes, or heat‐resistant spores could serve as a source of soil mycelium.

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mentioning

confidence: 95%

Secret lifestyles of pyrophilous fungi in the genus Sphaerosporella

Hughes

Case

Matheny

et al. 2020

American J of Botany

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Influence of Sphaerosporella Brunnea Mycorrhiza on the Growth of Quercus Robur and Castenea Satina

Cited by 1 publication

References 1 publication

Secret lifestyles of pyrophilous fungi in the genus Sphaerosporella

Secret lifestyles of pyrophilous fungi in the genus Sphaerosporella

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