Zinc toxicity in ectomycorrhizal Pinus sylvestris

@article{Colpaert2004ZincTI,
  title={Zinc toxicity in ectomycorrhizal Pinus sylvestris},
  author={Jan Colpaert and Jozef A. van Assche},
  journal={Plant and Soil},
  year={2004},
  volume={143},
  pages={201-211}
}
Six strains of ectomycorrhizal fungi were compared for their ability to increase zinc tolerance in Pinus sylvestris L. seedlings. Pioneer and ‘late-stage’ fungi as well as one strain collected from a Zn-polluted site were included in the study. The accumulation of zinc in the host plants was determined at two different sublethal substrate Zn concentrations. The mycobionts varied considerably in their protection of the autobionts against zinc toxicity. Several fungal species reduced zinc… 
The effect of ectomycorrhizal fungi on Zn uptake and distribution in seedlings of Pinus sylvestris L
TLDR
It is shown that nonmycorrhizal seedlings have the capability to control the uptake and translocation of Zn to the shoot until the external Zn concentration reaches a threshold level, where no limitation of uptake is possible.
TOLERANCE OF ECTOMYCORRHIZAL FUNGI AND PLANTS ASSOCIATED TO TOXIC LEVELS OF METALS
Ectomycorrhizas are associations between plant roots and fungi.They are very important for plant survival and growth since they increase nutrient uptake and protect plants against adverse conditions.
Ectomycorrhizal Fungi and Associated Bacteria Provide Protection Against Heavy Metals in Inoculated Pine (Pinus Sylvestris L.) Seedlings
TLDR
Dual root inoculations of pine seedlings resulted in higher accumulation of the metals, especially Zn(II), in the roots compared to the inoculation with fungal species alone, and could be a suitable approach for plant protection against heavy metals and successful planting of metal-polluted soils.
Trace metal effects on ectomycorrhizal growth, diversity, and colonization of host seedlings
TLDR
Inter-simple sequence repeat (ISSR) fingerprinting indicated that some genetic variation existed with in the sectors, but that the variation did not correspond to distinct clusters representing different levels of metal tolerance.
A zinc-adapted fungus protects pines from zinc stress.
TLDR
It is shown that well adapted microbial root symbionts are a major component of the survival strategy of trees that colonize contaminated soils and can sustain the pines' acquisition of nutrients.
Contribution of Ectomycorrhizal Fungi to Cadmium Uptake of Poplars and Willows from a Heavily Polluted Soil
TLDR
This investigation investigated the possibility of enhancing phytoextraction of Cd by willows and poplars in association with three well known ectomycorrhizal fungi in connection with contaminated soil and found that P. involutus significantly enhanced the total Cd extraction by P. canadensis.
Growth and photosynthetic responses of ectomycorrhizal pine seedlings exposed to elevated Cu in soils
TLDR
The results indicate that the two ECM fungi studied in this system may not have an ability to selectively eliminate Cu in nutrient absorption and may not act as effective barriers that decrease toxic metal uptake into host plants.
Ectomycorrhizal impact on Zn accumulation of Populus tremula L. grown in metalliferous soil with increasing levels of Zn concentration
AimsOur study aimed at characterizing the Zn phytoextraction potential of a metal tolerant Populus tremula accession in symbiosis with a community of ectomycorrhizal fungi from metal-contaminated
Sensitivity to Cd or Zn of host and symbiont of ectomycorrhizal Pinus sylvestris L. (Scots pine) seedlings
Pinus sylvestris seedlings infected with either the ectomycorrhizal (ECM) fungus Paxillus involutus or Suillus variegatus were exposed to a range of Cd or Zn concentrations. This was done to
...
...

References

SHOWING 1-10 OF 32 REFERENCES
The growth of the extramatrical mycelium of ectomycorrhizal fungi and the growth response of Pinus sylvestris L.
TLDR
The existence of an important negative correlation between the extent of the fungal development and the growth of the host plants is demonstrated and it is suggested that also nitrogen acquisition by the plants might be altered by the fungus.
THE EFFECT OF MYCORRHIZAL INFECTION ON THE RESPONSE OF BETULA PAPYRIFERA TO NICKEL AND COPPER
TLDR
The role of ectomycorrhizas in the metal tolerance of birch seedlings from Sudbury, Ontario was investigated and the potential role of iron and phosphorus in affecting host metal tolerance was investigated.
The influence of ectomycorrhiza on nitrogen nutrition and growth of Pinus sylvestris seedlings
TLDR
Ectomycorrhizal seedlings of Scots pine inoculated with the fungus Suillus bovinus were grown in growth units with a circulating culture solution and there are indications that the fungus influenced the exudation pattern of the uninfected seedlings.
Zinc tolerance in Betula spp. III: Variation in response to zinc among ectomycorrhizal associates
TLDR
The ameliorating influence of P. involutus on zinc toxicity to Betula seemed to be positively linked to the degree of compatibility between fungal strain and higher plant, and to the zinc status of the provenance.
Heavy metal tolerance in some ectomycorrhizal fungi
The metal tolerance of isolates of some common ectomycorrhizal fungi of Pin us and Betula spp., collected on heavily metal-polluted sites was compared with that of strains of the same species from
Response of ectomycorrhizalPinus banksiana andPicea glauca to heavy metals in soil
TLDR
Ectomycorrhizal colonization can protect Pinus and Picea seedlings from heavy metal toxicity at low or intermediate soil concentrations of Cd, Cu, Ni, Pb and Zn.
Mycorrhizal infection and resistance to heavy metal toxicity in Calluna vulgaris
Although studies of-the biology of mycorrhizas have repeatedly demonstrated their capacity to enhance nutrient capture in circumstances where essential elements are present in growth limiting
Effects of ectomycorrhiza on host growth and carbon balance in a semi‐hydroponic cultivation system
TLDR
The large variations in relative growth rate observed after inoculation with different fungi demonstrated that the mycobiont has a substantial influence over the proportion of host photosynthate allocated for maintaining the symbiosis.
Nickel toxicity in mycorrhizal birch seedlings infected with Lactarius rufus or Scleroderma flavidum I. Effects on growth, photosynthesis, respiration and transpiration
TLDR
The ability of S. flavidum to continue to grow following Ni exposure may be an important characteristic distinguishing between fungi which are ‘effective’ or ‘ineffective’ in enhancing metal tolerance.
Zinc tolerance in Betula spp. IV: The mechanism of ectomycorrhizal amelioration of zinc toxicity
TLDR
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.
...
...