THE FIELD DISTRIBUTION OF INTERACTING STRAINS OF <i>POLYPORUS SCHWEINITZII</i> AND THEIR ORIGIN

Barrett, D. K.; Usčuplic, M.

doi:10.1111/j.1469-8137.1971.tb02560.x

Cited by 68 publications

(24 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Carr. ), where the occurrence of single, unique genotypes within different individual trees has been taken as evidence of direct basidiospore infection of the roots (Barrett & Uscuplic, 1971), Evidence that basidiospores of Phanerochaete velutina can establish in leaf litter abutting a wood surface was provided during a study of fungal colonization of oak {Quercus robur L,) stumps, when it was noticed that the fungus established decay columns from the cut surface only when this was covered by a layer of leaf litter originating from a regrowth canopy (Rayner, 1977).…”

Section: Discussionmentioning

confidence: 99%

Fungal Population and Community Development in Cut Beech Logs

Coates

Rayner

1985

New Phytologist

View full text Add to dashboard Cite

SUMMARYPatterns of fungal colonization from the base of cut beech logs placed upright and partly buried in the ground at a mixed deciduous woodland site were fundamentally different from those from the aerial cut surface.Principal colonists resulting in decay, and mostly arriving within three months, were the ascomycete Xylaria hypoxylon (L. ex Hooker) Greville and various rhizomorph/mycelial cord-forming basidiomycetes, including Armillaria hulbosa (Barla) Kile & Watling, Phallus impudicus (L.) Pers., Phanerochaete velutina (DC ex Pers.) Parmasto and Tricholomopsis platyphyll^ (Pers. ex Fr.) Sing. Apart from A. bulbosa, these generally readily formed mycelial mats on the basal surface, between which somatic incompatibility reactions were often observed. Most frequent reactions occurred with X. hypoxylon which almost invariably produced numerous individuals in discrete decay columns. By contrast, lack of somatic incompatibility reactions between isolates of ^. bulbosa indicated that a single extensive mycelial type occurred throughout the site. The occurrence of somatic incompatibility between isolates of P. velutina from different logs indicated independent establishment, presumably via basidiospores, and this was consistent with the unusually late arrival of this species at the site. In no cases were numerous somatically incompatible individuals isolated from small volumes of wood lacking demarcation into discrete columns, as had been observed near the aerial cut surface.Vertical penetration from the base was more rapid than from the aerial cut surface, with X. hypoxylon a major pioneer species, and there was no pronounced lag phase.

show abstract

Section: Discussionmentioning

confidence: 99%

Fungal Population and Community Development in Cut Beech Logs

Coates

Rayner

1985

New Phytologist

View full text Add to dashboard Cite

show abstract

“…O. Kuntze. Both authors concluded has emerged (Adams & Roth, 1969;Barret & that somatic incompatibility can be used in Suillus Uscuplic, 1971;Rayner & Todd, 1979; Anderson ei for determining individuality. Since meiotically a/., 1979; Adams, Todd & Rayner, 1981;Kile, 1983; derived spores from basidia are the only spores Stenlid, 1985;Rayner & Boddy, 1986;Chamuris & produced in S. bovinus, and most Basidiomycotina Falk, 1987).…”

Section: Introductionmentioning

confidence: 99%

Population structure and dynamics in Suillus bovinus as indicated by spatial distribution of fungal clones

1990

View full text Add to dashboard Cite

SUMMARYThe spatial distribution of clones in the ectomycorrhizal fungus Suillus bovinus (L. ex Fr.) O. Kuntze was studied from somatic incompatibility pairings of isolates in four Scots pine {Pinus sylvestris L.) stands with different forest history. A pattern of increasing clonal size, decreasing clonal number, and decreasing fruiting per unit area, was found with increased forest age and relatively little disturbance. Establishment by spores was important on disturbed sites, while mycelial spread increased in importance with decreased disturbance. The number of clones was found to be 800 ha~^ in younger forest stands and decreased to between 25-130 ha~^ in mature stands. At the same time the diameter of the area occupied by a single clone increased from 1-3 m to 30 m. Implications of the observations are discussed in terms of ecological strategies and population dynamics.

show abstract

“…Commonly this occurs between monokaryons and results from either homo-or heterogenic incompatibility (Raper, 1966;Esser & Blaich, 1973). In a few cases, antagonism has also been observed between dikaryons where heterogenic incompatibility may also be implicated (Adams & Roth, 1967;Mounce, 1929;Campbell, 1938;Barrett & Uscuplic, 1971). The latter has only been demonstrated in culture, frequently between geographically separated isolates.…”

Section: Introductionmentioning

confidence: 99%

Intraspecific Antagonism in Natural Populations of Wood-decaying Basidiomycetes

Rayner

Todd

1977

Journal of General Microbiology

View full text Add to dashboard Cite

Wood undergoing decay by a variety of white-rotting Basidiomycetes often contains narrow, dark, relatively undecayed zones separating decayed regions. Isolates derived from either side of such zones, although often of the same fungal species, are frequently antagonistic.Methods are described for investigating the genetic basis and significance of such intraspecific antagonism in natural populations of decay fungi within individual stumps and logs. Results obtained for Coriolus versicolor show that decaying wood occupied by this fungus often contains populations of individual mutually antagonistic dikaryons, the monokaryotic components of which are often completely interfertile. These and similar results for other fungi suggest a fundamental departure from the concept of the unit mycelium.

show abstract

THE FIELD DISTRIBUTION OF INTERACTING STRAINS OF POLYPORUS SCHWEINITZII AND THEIR ORIGIN

Cited by 68 publications

References 5 publications

Fungal Population and Community Development in Cut Beech Logs

Fungal Population and Community Development in Cut Beech Logs

Population structure and dynamics in Suillus bovinus as indicated by spatial distribution of fungal clones

Intraspecific Antagonism in Natural Populations of Wood-decaying Basidiomycetes

Contact Info

Product

Resources

About