Influence of leaves on sporophore production by fungi forming sheathing mycorrhizas with Betula spp.

Pelham, J.; Mason, P.; Ingleby, K.

doi:10.1038/280168a0

Cited by 79 publications

(45 citation statements)

References 3 publications

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“…Kranabetter and Kroeger (2001) came to a similar conclusion in a partial cutting experiment in a coniferous forest in British Columbia. They hypothesized from their results and those of Last et al (1979) that increased growth of residual trees might enhance mushroom fruiting through greater tree vigour and photosynthetic activity. This assumption is also supported by the results of Cranswick (1979), who found that the starch content increased substantially in twigs of formerly shaded trees when overstory trees were removed.…”

Section: Discussionmentioning

confidence: 99%

La productivité des champignons est-elle favorisée par la croissance des arbres? Résultats d’une expérience d’éclaircie

et al. 2010

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Keywords:wild forest mushrooms / tree growth / biodiversity / forest management / non-wood forest product Abstract • Most of the edible forest mushrooms are mycorrhizal and depend on carbohydrates produced by the associated trees. Fruiting patterns of these fungi are not yet fully understood since climatic factors alone do not completely explain mushroom occurrence.• The objective of this study was to retrospectively find out if changing tree growth following an increment thinning has influenced the diversity patterns and productivity of associated forest mushrooms in the fungus reserve La Chanéaz, Switzerland.• The results reveal a clear temporal relationship between the thinning, the growth reaction of trees and the reaction of the fungal community, especially for the ectomycorrhizal species. The tree-ring width of the formerly suppressed beech trees and the fruit body number increased after thinning, leading to a significantly positive correlation between fruit body numbers and tree-ring width.• Fruit body production was influenced by previous annual tree growth, the best accordance was found between fruit body production and the tree-ring width two years previously.• The results support the hypothesis that ectomycorrhizal fruit body production must be linked with the growth of the associated host trees. Moreover, the findings indicate the importance of including mycorrhizal fungi as important players when discussing a tree as a carbon source or sink. Mots-clés :champignons sauvages forestiers / croissance d'arbre / biodiversité / gestion forestière / production forestière autre que le bois Résumé -La productivité des champignons est-elle favorisée par la croissance des arbres ? Ré-sultats d'une expérience d'éclaircie.• La plupart des champignons comestibles des forêts sont mycorhiziens et dépendent des hydrates de carbone produits par les arbres associés. Le processus de fructification de ces champignons n'est pas encore totalement connu. À eux seuls, les facteurs climatiques ne sont pas en mesure d'expliquer l'apparition d'années pauvres ou riches en champignons.• Cette étude a pour but de vérifier, d'une manière rétrospective, si la modification de la croissance des arbres, induite par une mise en lumière suite à une éclaircie, influence la diversité et la productivité des champignons dans la réserve mycologique de La Chanéaz en Suisse.• Les résultats montrent une relation temporelle nette entre l'éclaircie, la réaction de croissance des arbres et la réaction des communautés de champignons, spécialement pour les espèces ectomycorhiziennes. Nous avons observé une augmentation tant de la largeur des cernes des hêtres autrefois dominés que du nombre de carpophores, conduisant à une corrélation positive entre les deux variables.• La production de carpophores était influencée par la croissance annuelle précédente des arbres. La meilleure concordance a été trouvée entre la production de carpophores et la largeur des cernes deux ans auparavant.• Les résultats sont en accord avec l'hypothèse que la production de c...

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Section: Discussionmentioning

confidence: 99%

La productivité des champignons est-elle favorisée par la croissance des arbres? Résultats d’une expérience d’éclaircie

et al. 2010

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“…The substrates of both groups are quite different. Saprotrophs require litter from (the) previous year(s) ; mycorrhizal symbionts require photosynthate quickly exudated by young roots (Romell 1938, Last et al 1979. The amounts of substrate available to the fungi will vary over the years.…”

Section: Discussionmentioning

confidence: 99%

Species richness, abundance, and phenology of fungal fruit bodies over 21 years in a Swiss forest plot

Straatsma¹,

Ayer

Egli

2001

Mycological Research

217

139

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“…Most species of ectomycorrhizal fungi are considered obligately dependent on their host plants for carbon (Harley, 1971, Hacskaylo, 1973, Last et al, 1979, so stand-replacement disturbance is expected to negatively affect truffle production for some period of time, at least until ectomycorrhizal hosts become reestablished. Disturbance of the organic soil is also expected to affect truffle production because both ectomycorrhizae (Harvey et al, 1978(Harvey et al, , 1979 and truffles (Waters, JR., Luoma, D.L., personal observation) are primarily located in organic soil layers and the upper mineral soil.…”

Section: Introductionmentioning

confidence: 99%

Truffle production in old-growth and mature fir stands in northeastern California

Waters¹,

McKelvey²,

Luoma³

et al. 1997

Forest Ecology and Management

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Few studies have examined fruiting patterns of hypogeous fungi, and relationships between sporocarp production of hypogeous fungi and forest habitat components such as organic soil depth and amounts of decayed wood are poorly understood. We sampled sporocarps of hypogeous fungi (truffles) in four old-growth (> 200 years) and four paired, mature (ca 100 years) fir ( Abies spp.) stands during four sample periods in 1993 and three sample periods in 1994 in the Lassen National Forest in northeastern California. Truffles were collected from 4-m2 circular plots systematically located at 36 grid points per stand during each sample period. Habitat characteristics were measured in 50.3-m" circles centered at each grid point in 1993. We found a total of 46 truffle species in 30.4% of the 2016 total plots, and the total standing dry weight of truffles was equivalent to 2.43 kg ha-'. Total frequency and biomass of truffles and number of truffle species did not differ significantly between stand types in 1993 or 1994, but species composition did. We found no significant associations between measures of total truffle abundance and measures of habitat structure and composition at the 0.25ha grid scale or at the 50.3-m 2 habitat plot scale. At the scale of the 4-m 2 truffle plot, plots with decayed wood were more likely to have truffles than plots without decayed wood during the final sample period of each year, but the association was significant only in 1993. Mean organic soil depth was greater in plots with truffles than plots without truffles in each sample period in both years, but ranked values were only marginally significant in one sample period. Goodness-of-fit tests to the Poisson distribution indicated that individual truffles had clumped distributions, but we could not reject the null hypothesis of random distribution of truffle collections. Our results indicate that total truffle production had recovered from stand-replacement wildfire in the mature stands, and that total truffle abundance was not strongly associated with habitat characteristics within the range of habitat variation exhibited in these stands. Individual species, however, were associated with old-growth stands and others with mature stands. 0 1997 Elsevier Science B.V.

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Influence of leaves on sporophore production by fungi forming sheathing mycorrhizas with Betula spp.

Cited by 79 publications

References 3 publications

La productivité des champignons est-elle favorisée par la croissance des arbres? Résultats d’une expérience d’éclaircie

La productivité des champignons est-elle favorisée par la croissance des arbres? Résultats d’une expérience d’éclaircie

Species richness, abundance, and phenology of fungal fruit bodies over 21 years in a Swiss forest plot

Truffle production in old-growth and mature fir stands in northeastern California

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