Effect of ectomycorrhizal colonization on the uptake of Ca, Mg and Al by Pinus sylvestris under aluminium toxicity

Schöll, L. van; Keltjens, Willem G.; Hoffland, Ellis; Breemen, N. van

doi:10.1016/j.foreco.2005.05.025

Cited by 32 publications

(16 citation statements)

References 54 publications

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“…This is particularly important because mine spoil is largely deficient in essential plant nutrients such as N, P, and K, and high levels of Al are known to limit the uptake of divalent cations (Ca, Mg). Indeed, the stunted root growth and low levels of foliar N, P, K, Ca, and Mg in nonmycorrhizal E. rudis and E. patens were consistent with Al-induced growth impairments in woody plants [25] and competitive inhibition of Mg and Ca uptake [16,29]. In contrast, plants grown with Pisolithus showed substantial increases in N and P, consistent with the physiological role of ECM in natural forest or Al-treated soils [4,10,25], as well as increased plant Mg, Ca, and K levels.…”

Section: Discussionmentioning

confidence: 67%

Aluminum-TolerantPisolithusEctomycorrhizas Confer Increased Growth, Mineral Nutrition, and Metal Tolerance toEucalyptusin Acidic Mine Spoil

Egerton‐Warburton

2015

Applied and Environmental Soil Science

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Ectomycorrhizal fungi (ECM) may increase the tolerance of their host plants to Al toxicity by immobilizing Al in fungal tissues and/or improving plant mineral nutrition. Although these benefits have been demonstrated in in vitro (pure culture) or shortterm nutrient solution (hydroponic) experiments, fewer studies have examined these benefits in the field. This study examined the growth, mineral nutrition, and Al levels in two Eucalyptus species inoculated with three Pisolithus ecotypes that varied in Al tolerance (in vitro) and grown in mine spoil in the greenhouse and field. All three ecotypes of Pisolithus improved Eucalyptus growth and increased host plant tolerance to Al in comparison to noninoculated plants. However, large variations in plant growth and mineral nutrition were detected among the Pisolithus-inoculated plants; these differences were largely explained by the functional properties of the Pisolithus inoculum. Seedlings inoculated with the most Al-tolerant Pisolithus inoculum showed significantly higher levels of N, P, Ca, Mg, and K and lower levels of Al than seedlings inoculated with Al-sensitive ecotypes of Pisolithus. These findings indicate an agreement between the fungal tolerance to Al in vitro and performance in symbiosis, indicating that both ECM-mediated mineral nutrient acquisition and Al accumulation are important in increasing the host plant Al tolerance.

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Section: Discussionmentioning

confidence: 67%

Aluminum-TolerantPisolithusEctomycorrhizas Confer Increased Growth, Mineral Nutrition, and Metal Tolerance toEucalyptusin Acidic Mine Spoil

Egerton‐Warburton

2015

Applied and Environmental Soil Science

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“…Paris et al 1995aParis et al , b, 1996Glowa et al 2003), although in some cases no or negative effects are observed. Van Schöll et al (2005) did not find increased biomass nor increased Mg and Ca concentrations in EcM Scots pine seedlings compared to non mycorrhizal seedlings in a semi-hydroponic experiment, although they claim it may be different in soil-grown plants. Corrêa et al (2006) even suggest that mycorrhization, especially of seedlings in a nutrient poor environment, leads to decreased growth as a result of competition for carbon between the EcM and the host plant.…”

Section: Discussionmentioning

confidence: 73%

The ecological significance of the coarse soil fraction for Picea abies (L.) Karst. seedling nutrition

Koele

Hildebrand

2008

Plant Soil

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Recent studies showed that the coarse fraction of soils can have a considerable stock of short-term available nutrients. However, a direct proof that coarse soil fragments have significant nutritional functions in forest ecosystems is missing. In a 23 week microcosm experiment with controlled in-and output, mycorrhizal (Laccaria bicolor S238N) and nonmycorrhizal Norway spruce seedlings (Picea abies (L.) Karst.) were grown on either coarse soil fragments (dark paragneiss, Black Forest, S-W Germany) or quartz only. The microcosms were irrigated with a solution adjusted to the mean ionic composition of the soil solution in the reference profile, but devoid of Ca and Mg. The uptake rates of Ca and Mg by spruce seedlings were sufficient to allow normal root and shoot growth. Mycorrhization was low and did not have a significant influence on seedling nutrition. The oxalic anion was found in concentrations below 1.5 mg L −1 in the leachate, approximately corresponding to a C 2 O 4 2− -saturation in equilibrium with precipitated calcium oxalate. Cation budgets and relationships among the cation species suggest that exchange processes were the main trigger of Ca and Mg mobilisation and uptake rather than protolytic weathering by exudation of carboxylic acids. The exchange processes may be attributed to weathering cracks filled with fine material of high base saturation. Therefore it is concluded that the short-term nutritional functions of coarse soils in forest sites are significant, and exchange mechanisms in the "stone protected fine earth" are in principal the same as they are known for the "free fine earth".

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“…Zhang et al and von Schöll et al reported that plant growth decrease may be related to the increases of Cd content in wheat plants and Al concentration in Pinus sylvestris needles. In this study, stress treatments significantly increased Al or Cd concentration in plants, e.g.…”

Section: Resultsmentioning

confidence: 99%

Aluminum and Cadmium Forms in Stressed Rhizosphere Soil and Their Bioavailability to Two Hordeum vulgare L. Varieties

Guo

Sun

et al. 2013

CLEAN Soil Air Water

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The effects of aluminum (Al) and cadmium (Cd) single and combinational treatments on two barley varieties differing in Al tolerance were examined in terms of chemical forms of Al and Cd in the rhizosphere soil and their plant availability. Our results showed that acidic‐soluble inorganic Al, humic acidic Al, and residue Cd were the predominant form(s) of Al and Cd in the rhizosphere soil of both barley varieties. The contents of different Al and Cd forms, especially for the exchangeable form, as well as Al and Cd contents in plants significantly increased under stress treatments. Meanwhile, stress treatments significantly reduced grain yield. In comparison with the single metal treatments, combinational stress increased the contents of exchangeable Al and Fe–Mn‐oxide‐bound Cd, but showed a decrease or no effect on the other forms. As a result, combinational stress led to a higher Al but a lower Cd accumulation in plants, and more reduction in grain yield. Increase in the contents of bioavailable Al and Cd forms in the stressed rhizosphere soil and in the concentrations of Al or Cd in plant parts was higher in the Al sensitive variety.

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Effect of ectomycorrhizal colonization on the uptake of Ca, Mg and Al by Pinus sylvestris under aluminium toxicity

Cited by 32 publications

References 54 publications

Aluminum-TolerantPisolithusEctomycorrhizas Confer Increased Growth, Mineral Nutrition, and Metal Tolerance toEucalyptusin Acidic Mine Spoil

Aluminum-TolerantPisolithusEctomycorrhizas Confer Increased Growth, Mineral Nutrition, and Metal Tolerance toEucalyptusin Acidic Mine Spoil

The ecological significance of the coarse soil fraction for Picea abies (L.) Karst. seedling nutrition

Aluminum and Cadmium Forms in Stressed Rhizosphere Soil and Their Bioavailability to Two Hordeum vulgare L. Varieties

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