Effects of cadmium on growth and glucose utilisation of ectomycorrhizal fungi in vitro

Effects of Cd on growth and glucose utilisation of Paxillus involutus, Rhizopogon subcaerulescens and Suillus bovinus were investigated in vitro in liquid culture. S. bovinus was the species most sensitive to Cd in terms of dry matter production and P. involutus was less sensitive than R. subcaerule...

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Bibliographic Details
Published in:Mycorrhiza 2003-08, Vol.13 (4), p.223-226
Main Authors: KIM, C.-G, POWER, S. A, BELL, J. N. B
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Basidiomycota - drug effects
Basidiomycota - growth & development
Basidiomycota - metabolism
Biological and medical sciences
Cadmium
Cadmium - pharmacology
Detoxification
Dry matter
Economic plant physiology
Fundamental and applied biological sciences. Psychology
Fungi
Glucose - metabolism
Metabolites
Microbiology
Mycorrhizae - drug effects
Mycorrhizae - growth & development
Mycorrhizae - metabolism
Parasitism and symbiosis
Paxillus involutus
Plant physiology and development
Rhizopogon subcaerulescens
Suillus bovinus
Symbiosis
Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...)
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Summary:Effects of Cd on growth and glucose utilisation of Paxillus involutus, Rhizopogon subcaerulescens and Suillus bovinus were investigated in vitro in liquid culture. S. bovinus was the species most sensitive to Cd in terms of dry matter production and P. involutus was less sensitive than R. subcaerulescens. Greater production of hyphae of P. involutus than the other fungi appeared to confer some degree of Cd resistance, possibly by binding Cd onto cell walls. Growth of the three fungi was increased by glucose addition. While Cd significantly reduced dry matter production of the fungi, there were no significant differences in glucose consumption caused by Cd treatment. This suggests that the use of glucose might have been diverted to detoxification and/or repair mechanisms. Further studies on respiration rates and energy metabolites of these fungi under Cd exposure are needed in order to clarify the results of the present study.
ISSN:0940-6360
1432-1890
DOI:10.1007/s00572-003-0235-8