Fungi in the genus Tomentellopsis were subjected to molecular phylogenetic analyses in order to clarify species-level relationships and mycorrhiza-forming ability with coniferous and deciduous trees. Fungal nucleotide sequence data from... more
Fungi in the genus Tomentellopsis were subjected to molecular phylogenetic analyses in order to clarify species-level relationships and mycorrhiza-forming ability with coniferous and deciduous trees. Fungal nucleotide sequence data from the internal transcribed spacer of nuclear ribosomal DNA (ITS rDNA) region were obtained from fruitbodies, ectomycorrhiza and pure cultures. Maximum parsimony (MP), distance (neighbor joining, NJ) and maximum likelihood (ML)
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Research Interests: Plant Diversity, Biological Sciences, Phosphorus, Seasonality, Environmental Sciences, and 10 moreArbuscular mycorrhizal fungi, Plant growth, Nitrogen, Principle component analysis, Fatty Acid, Plant species, Ecosystem Function, Plant Community, Microbial Community Structure, and Microbial community
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SUMMARY The identity of individual ectomycorrhizas, root colonization patterns and early growth responses of interconnected Scots pine (Pinus sylvestris L.) seedlings were investigated following interactions between local genets of... more
SUMMARY The identity of individual ectomycorrhizas, root colonization patterns and early growth responses of interconnected Scots pine (Pinus sylvestris L.) seedlings were investigated following interactions between local genets of Suillus bovinus (L. ex Fr.) 0. Kuntze (SBK4b and ...
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Strains of Ceratobasidium bicorne (anamorph uninucleate Rhizoctonia), causing root dieback in nursery-grown conifer seedlings, were fruited in the laboratory and the pairing interactions among sibling, single-basidiospore progeny were... more
Strains of Ceratobasidium bicorne (anamorph uninucleate Rhizoctonia), causing root dieback in nursery-grown conifer seedlings, were fruited in the laboratory and the pairing interactions among sibling, single-basidiospore progeny were investigated. No mating reactions were observed. Instead, a high frequency of somatic incompatibility was observed in progeny pairings, indicated by a killing reaction in hyphal anastomosis and by formation of a demarcation line. The F1 progeny also could be fruited, and the level of somatic incompatibility within the F2 progeny remained high, even if lower than in the F1 progeny. The interaction types in pairings within a family of progeny were similar in all respects to those between field isolates, indicating that the species is homothallic. The uninucleate condition of vegetative cells and the basidial characteristics would indicate homokaryotic fruiting, but the possibility of pseudohomothallism remains. We currently are not able to provide an exp...
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Antagonistic bacteria represent promising biocontrol agents for improving forest production in seedling nurseries or forest soils. The fate of an introduced mer/luc-tagged antagonistic Pseudomonas fluorescens 31K3 was monitored in the... more
Antagonistic bacteria represent promising biocontrol agents for improving forest production in seedling nurseries or forest soils. The fate of an introduced mer/luc-tagged antagonistic Pseudomonas fluorescens 31K3 was monitored in the rhizosphere of silver birch (Betula pendula) seedlings grown in microcosms containing forest humus or nursery peat. The inoculated strain (10(8) cfu g(-1) soil) was unable to establish in significant numbers in either soil type and turned nonculturable in humus. Detection in both soils was possible only via luminescence of enrichment cultures 80 days post-inoculation. Despite low P. fluorescens survival, inoculation had a positive effect on seedling growth. Limited impact of inoculation on the indigenous microbial communities was identified following analyses of respiration and denitrification potential, community-level physiological profiles and molecular fingerprinting of fungi and eubacteria, and Pseudomonas community structures. The minor changes observed in the indigenous microbial communities, including mycorrhiza development, were not consistent between humus and peat growth substrates. It was concluded that the rhizosphere-related microbial communities developed in both of these highly organic soil systems are highly buffered against introduction of foreign bacteria.
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ABSTRACT
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Abstract: Mycorrhizal and non-mycorrhizal Scots pine (Pinus sylvestris L.) seedling combinations were grown in two-dimensional Perspex® microcosms containing forest humus or nursery Sphagnum peat, without additional fertilization. Spatial... more
Abstract: Mycorrhizal and non-mycorrhizal Scots pine (Pinus sylvestris L.) seedling combinations were grown in two-dimensional Perspex® microcosms containing forest humus or nursery Sphagnum peat, without additional fertilization. Spatial and temporal patterns of mycorrhizal fungal ...
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Abstract: The aim of the study was an integrated monitoring of Scots pine (Pinus sylvestris L.) bait seedling performance and ectomycorrhizal fungal community dynamics in a Scots pine dominated stand one growing season before and over... more
Abstract: The aim of the study was an integrated monitoring of Scots pine (Pinus sylvestris L.) bait seedling performance and ectomycorrhizal fungal community dynamics in a Scots pine dominated stand one growing season before and over four seasons after forest clear-cut logging. ...
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Abstract: The aims of this microcosm-based study were to characterize Scots pine ectomycorrhizal (EcM) inoculum po-tential in humus (O) and underlying eluvial (E) and illuvial (B) mineral podzol soil horizons and to compare the inoculum... more
Abstract: The aims of this microcosm-based study were to characterize Scots pine ectomycorrhizal (EcM) inoculum po-tential in humus (O) and underlying eluvial (E) and illuvial (B) mineral podzol soil horizons and to compare the inoculum potential 1 and 4 years following clear-cut ...
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The use of classroom response systems (CRS) is increasing in UK Higher Education. The AID4A project at MMU is currently evaluating Promethean's CRS, known as ActivExpression (AE). As part of this project we were interested to see if... more
The use of classroom response systems (CRS) is increasing in UK Higher Education. The AID4A project at MMU is currently evaluating Promethean's CRS, known as ActivExpression (AE). As part of this project we were interested to see if the strengths that are often attributed to ...
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We studied the effects of soil fungi on the survival of Otiorhynchus sulcatus larvae. The larvae were introduced into pots with birch seedlings grown in: (i) nursery peat; (ii) nursery peat inoculated with three different species of... more
We studied the effects of soil fungi on the survival of Otiorhynchus sulcatus larvae. The larvae were introduced into pots with birch seedlings grown in: (i) nursery peat; (ii) nursery peat inoculated with three different species of ectomycorrhizal fungi; (iii) nursery peat inoculated with ...