Basidiospore Germination and Substrate Preference in Fomes fomentarius and Fomitopsis cajanderi

Tsuneda, Ichiko; Kennedy, Lorene L.

doi:10.2307/3759435

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…& Pouz. (Tsuneda & Kennedy 1980). Similar observations have been made for parasitic species of the P. igniarius group, although results are preliminary (Fischer 1987).…”

Section: Discussionsupporting

confidence: 66%

Phellinus species on Betula. Mating tests, RFLP analysis of enzymatically amplified rDNA, and relations to Phellinus alni

Fischer¹,

Binder²

1995

Karstenia

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“…& Pouz. (Tsuneda & Kennedy 1980). Similar observations have been made for parasitic species of the P. igniarius group, although results are preliminary (Fischer 1987).…”

Section: Discussionsupporting

confidence: 66%

Phellinus species on Betula. Mating tests, RFLP analysis of enzymatically amplified rDNA, and relations to Phellinus alni

Fischer¹,

Binder²

1995

Karstenia

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“…Other explanations for the lack of competitive success of G. trabeum include use of bark‐free wood blocks, temperature, moisture and heartwood content, and a simplified microbial community structure. While the influence of bark was negligible in a white rot and brown rot fungal spore trial by Tsuneda & Kennedy (), the presence of bark (causing hydrophobic encapsulation) along with naturally fluctuating temperature and moisture may affect competition among fungi with distinct moisture and temperature optima. Heartwood also contains phenolics and other water‐ or solvent‐extractable fungitoxic compounds, and tolerance to these wood extractives has long been known to vary among decay fungi (Scheffer & Cowling, ).…”

Section: Resultsmentioning

confidence: 99%

Competition between two wood-degrading fungi with distinct influences on residues

Song

Vail

Sadowsky³

et al. 2011

FEMS Microbiol Ecol

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Many wood-degrading fungi colonize specific types of forest trees, but often lack wood specificity in pure culture. This suggests that wood type affects competition among fungi and indirectly influences the soil residues generated. While assessing wood residues is an established science, linking this information to dominant fungal colonizers has proven to be difficult. In the studies presented here, we used isolate-specific quantitative PCR to quantify competitive success between two distinct fungi, Gloeophyllum trabeum and Irpex lacteus, brown and white rot fungi, respectively, colonizing three wood types (birch, pine, oak). Ergosterol (fungal biomass), fungal species-specific DNA copy numbers, mass loss, pH, carbon fractions, and alkali solubility were determined 3 and 8 weeks postinoculation from replicate wood sections. Quantitative PCR analyses indicated that I. lacteus consistently outcompeted G. trabeum, by several orders of magnitude, on all wood types. Consequently, wood residues exhibited distinct characteristics of white rot. Our results show that competitive interactions between fungal species can influence colonization success, and that this can have significant consequences on the outcomes of wood decomposition.

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“…We would like to note here that our choice of fixed 24 h' culturing time (also used, e.g., by Tsuneda and Kennedy () and Edman et al. ()) can be criticized on two accounts.…”

Section: Methodsmentioning

confidence: 99%

Spore sensitivity to sunlight and freezing can restrict dispersal in wood‐decay fungi

Norros

Karhu

Nordén

et al. 2015

Ecology and Evolution

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Assessment of the costs and benefits of dispersal is central to understanding species' life-history strategies as well as explaining and predicting spatial population dynamics in the changing world. While mortality during active movement has received much attention, few have studied the costs of passive movement such as the airborne transport of fungal spores. Here, we examine the potential of extreme environmental conditions to cause dispersal mortality in wood-decay fungi. These fungi play a key role as decomposers and habitat creators in forest ecosystems and the populations of many species have declined due to habitat loss and fragmentation. We measured the effect of simulated solar radiation (including ultraviolet A and B) and freezing at −25°C on the spore germinability of 17 species. Both treatments but especially sunlight markedly reduced spore germinability in most species, and species with thin-walled spores were particularly light sensitive. Extrapolating the species' laboratory responses to natural irradiance conditions, we predict that sunlight is a relevant source of dispersal mortality at least at larger spatial scales. In addition, we found a positive effect of spore size on spore germinability, suggesting a trade-off between dispersal distance and establishment. We conclude that freezing and particularly sunlight can be important sources of dispersal mortality in wood-decay fungi which can make it difficult for some species to colonize isolated habitat patches and habitat edges.

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Basidiospore Germination and Substrate Preference in Fomes fomentarius and Fomitopsis cajanderi

Cited by 5 publications

References 6 publications

Phellinus species on Betula. Mating tests, RFLP analysis of enzymatically amplified rDNA, and relations to Phellinus alni

Phellinus species on Betula. Mating tests, RFLP analysis of enzymatically amplified rDNA, and relations to Phellinus alni

Competition between two wood-degrading fungi with distinct influences on residues

Spore sensitivity to sunlight and freezing can restrict dispersal in wood‐decay fungi

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