Heavy metal tolerance by ectomycorrhizal fungi and metal amelioration by Pisolithus tinctorius

  title={Heavy metal tolerance by ectomycorrhizal fungi and metal amelioration by Pisolithus tinctorius},
  author={Paul C. F. Tam},
  • P. C. Tam
  • Published 1 February 1995
  • Environmental Science
  • Mycorrhiza
Five ectomycorrhizal fungi, Pisolithus tinctorius, Thelephora terrestris, Cenococcum geophilum, Hymenogaster sp. and Scleroderma sp., which were demonstrated previously to be capable of forming ectomycorrhizas with some pine, eucalypt and fagaceous tree species were grown in vitro in liquid cultures for 3 weeks at six different concentrations of nine heavy metals, aluminium, iron, copper, zinc, nickel, cadmium, chromium, lead and mercury. Measurements of mean mycelial dry weight yields… 
Detecting the heavy metal tolerance level in ectomycorrhizal fungi in vitro
SummaryEight isolates of ectomycorrhizal fungi namely, Laccaria fraterna (EM-1083),Laccaria laccata (EM-1191), Pisolithus tinctorius (EM-1081),Pisolithus tinctorius (EM-1293), Scleroderma cepa
Effect of Coal Ash on Growth and Metal Uptake by Some Selected Ectomycorrhizal Fungi in vitro
Growth of vegetative mycelium on fly ash variants and metal accumulation data indicated that Pisolithus tinctorius (EM-1290) was the most tolerant among the isolates tested for most of the metals and could be used for the reclamation of coal ash over burdened sites.
Ultrastructural localization of heavy metals in the extraradical mycelium and spores of the arbuscular mycorrhizal fungus Glomus intraradices.
The results suggest that binding of metals to the cell walls and compartmentalization in vacuoles may be essential mechanisms for metal detoxification.
Growth responses and accumulation of heavy metals by fungus Agaricus bisporus
There was a strong variation in metal tolerance, so that Agaricus bisporus was more tolerant to Mn than other metals, while the reverse was tru...
Copper resistance of different ectomycorrhizal fungi such as Pisolithus microcarpus, Pisolithus sp., Scleroderma sp. and Suillus sp.
The isolates UFSG-Pt116 and UFSC-PT24 can be important candidates to survive in copper-contaminated areas, and can show important role in plants symbiosis in these contaminated sites.
Metal insensitivity in ericoid mycorrhizal endophytes from Woolsia pungens (Epacridaceae)
The data suggest that resistance to toxic metals is broadly similar in ericoid mycorrhizal endophytes from Northern Hemisphere Ericaceae and Australian Epacridaceae.
Cd and Zn interactions and toxicity in ectomycorrhizal basidiomycetes in axenic culture
Increased tolerance patterns were detected in fungi grown inSolid medium allows measuring radial growth/mycelial density as endpoints which are informative and in this case appeared be related to the high tolerance indices found in H. subsaponaceum.
Tolerância de fungos ectomicorrízicos a metais pesados em meio de cultura adicionado de solo contaminado
Ectomycorrhizal symbiosis can play a crucial role in protecting plant roots from heavy metals. However, a high heavy metal contamination can inhibit ectomycorrhizal fungi growth and activity,
Influence of Aluminum on Mineral Nutrition of the Ectomycorrhizal Fungi Pisolithus sp. and Cantharellus cibarius
The acid phosphatase activity of hyphae increased in the presence of Al in both fungi suggesting a role of these enzymes in Al detoxification, and the possible use of ectomycorrhizal fungi to improve host plant resistance to Al toxicity.
Ericoid mycorrhizal fungi were isolated from roots of Calluna vulgaris collected from mine spoil at abandoned copper mines at Avoca, County Wicklow, Ireland, and Parys Mountain, Anglesey, Wales and determined to have a low sensitivity to these metals.


Zinc tolerance in Betula spp. IV: The mechanism of ectomycorrhizal amelioration of zinc toxicity
Results imply that as the fungal mycelium colonizes fresh soil, zinc is adsorbed to the surface of hyphae, thereby lowering the concentration of zinc in the soil solution surrounding roots and growth is better than in the non-mycorrhizal condition.
Histochemical demonstration of heavy metal tolerance in ectomycorrhizal fungi
Evidence was obtained that tolerance to heavy metals in ectomycorrizal fungi is based on the presence of metallothionein-like proteins, and this implication that tolerance in these fungi should be induced by sublethal concentrations of heavy metals has been confirmed.
Aluminium polyphosphate in the ectomycorrhizal fungus Suillus variegatus (Fr.) O. Kunze as revealed by energy dispersive spectrometry
SUMMARY The aluminium detoxification mechanism of an ectomycorrhizal fungus, Suillus variegatus (Fr.) O. Kunze, grown on Petri dishes was studied using an atomic absorption spectrometer (AAS) and
A reassessment of polyphosphate granule composition in the ectomycorrhizal fungus Pisolithus tinctorius
It is concluded that chemical fixation causes serious loss or redistribution of ions and the occurrence of monovalent cations in polyphosphate granules should be considered in determining the role of the granules in mycorrhizas.
Mycorrhizal associations in Hong Kong Fagaceae
The results indicate that P. tinctorius has a potential for application in reafforestation programmes in Hong Kong and southern China.
Zinc tolerance of mycorrhizal Betula
The mycorrhizas increased the tolerance to Zn of both tolerant and non-tolerant Betula and this was coupled with a reduction in the translocation of zinc to the shoots of Betula, but an accumulation of zinc in the mycor rhizas.
Pisolithus tinctorius ectomycorrhizae improve survival and growth of pine seedlings on acid coal spoils in Kentucky and Virginia
Studied was the effect of ectomycorrhizae formed by the fungus Pisolithus tinctorius on growth of loblolly and shortleaf pine seedlings in acid coal spoils. Seedling production was tested on both
Lead, cadmium and zinc contents of fungi in the parks of Helsinki
Twenty-two samples of fungi (Agaricales) were collected from six parks in Helsin ki, Finland, and analysed for lead, cadmium and zinc. The lead and cadmium contents were higher than had been observed