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Krikorev, Michael, 2009. Stjälkröksvamp (Tulostoma brumale) : stora eller små individer?. Second cycle, A2E. Uppsala: SLU, Dept. of Forest Mycology and Plant Pathology

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Abstract

The spatial population structure of the saprotrophic basidiomycete Tulostoma brumale was investigated at a site in south eastern Sweden. Sporocarps were mapped and collected, and somatic incompatibility tests between mycelial cultures cultivated from the sporocarps were used to identify genets. Calculations of the size and numbers of genets and their distribution were performed. The spatial distribution of the tested sporocarps and the identified genets are presented graphically in a grid. The total number of identified genets within the investigated area (1210 m2) was 27 based on 48 tested sporocarps. The size of the genets was calculated by measuring the distance between the furthermost sporocarps with somatically compatible mycelial cultures. 16 of the 27 identified genets displayed 2 or more sporocarps. The most extensive genet, as reflected by the tested sporocarps, was 1.25 meters in diameter. The shortest distance between sporocarps from different genets was 32 cm. The results indicate that the population contains of relatively small, short-lived and spore established genets. A moderate but continuous disturbance by (preferably horse) grazing can maintain open sand bares that probably favour the establishment of new genets from spores. The size, age and life strategies of genets are discussed.

Main title:Stjälkröksvamp (Tulostoma brumale)
Subtitle:stora eller små individer?
Authors:Krikorev, Michael
Supervisor:Dahlberg, Anders
Examiner:Högberg, Nils
Series:UNSPECIFIED
Volume/Sequential designation:2009:6
Year of Publication:2009
Level and depth descriptor:Second cycle, A2E
Student's programme affiliation:None
Department:(NL, NJ) > Dept. of Forest Mycology and Plant Pathology
(S) > Dept. of Forest Mycology and Plant Pathology
Keywords:fungi, population biology, genotype
URN:NBN:urn:nbn:se:slu:epsilon-s-818
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-s-818
Subjects:Life sciences
Language:Swedish
Deposited On:20 Dec 2011 08:58
Metadata Last Modified:20 Apr 2012 14:24

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