Organic acids produced by mycorrhizal Pinus sylvestris exposed to elevated aluminium and heavy metal concentrations

By U. Ahonen-Jonnarth, P. Hees, U. Lundström, R. Finlay. 2000

215 citations recorded by the source corpus.

Subfields: Mechanical Engineering, Plant Science

View Paper: https://www.semanticscholar.org/paper/80044e56e4c8a1189c0275c1678201b967770f64

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Mechanical Engineering

1. P. Fransson
2. C. Plassard
3. Geoffrey M. Gadd

In Plant Science

1. Geoffrey M. Gadd
2. R. Finlay
3. C. Nguyen
4. Davey L. Jones
5. Jan Colpaert
6. C. Plassard
7. P. Fransson
8. M. Fomina

Citations in the corpus

• Zinc Phosphate and Pyromorphite Solubilization by Soil Plant-Symbiotic Fungi (2004, background): “The spectrum of organic acids produced by the fungi in the present study was similar to those reported for other saprotrophic and rock-dwelling fungi as well as to that found for symbiotic associations of ectomycorrhizal fungi with pine seedlings (Palmer, Siebert, and Hirsch 1991; GomesAlarcon, Muno”
• Solubilization of Insoluble Inorganic Phosphate by Hyphal Exudates of Arbuscular Mycorrhizal Fungi (2006, background): “Pinus sylvestris colonized by Suillus variegates and Rhizopogon roseolus produced more oxalic acid than did uninoculated plants (Ahonen-Jonnarth et al., 2000).”
• Geomycology: biogeochemical transformations of rocks, minerals, metals and radionuclides by fungi, bioweathering and bioremediation. (2007, unknown): “…metals (copper, aluminium) or minerals (pyromorphite, zinc phosphate) (Lapeyrie et al. 1987, 1991; Wenzel et al. 1994; Gharieb & Gadd 1999; Whitelaw et al. 1999; Ahonen-Jonnarth et al. 2000; van Leerdam et al. 2001; Arvieu et al. 2003; Casarin et al. 2003; Clausen & Green 2003; Fomina et al. 2004).”
• Carbon flow in the rhizosphere: carbon trading at the soil–root interface (2009, background): “Ectomycorrhizal fungi produce significant amounts of organic acids (Sun et al. 1999; Ahonen-Jonnarth et al. 2000) which may play a role in weathering of minerals, complexation of toxic Al3+ or in antibiosis.”
• Ectomycorrhizal protection of Pinus sylvestris against copper toxicity (2001, background): “The production of oxalic acid by many fungi provides a means of immobilizing soluble metal ions as insoluble oxalates, decreasing availability and conferring resistance (Gadd, 1999; Ahonen-Jonnarth et al., 2000).”
• Perspectives of plant-associated microbes in heavy metal phytoremediation. (2012, background): “Kozdrój et al. (2007) found that the co-inoculation of EMF and EMF associated bacteria (Pseudomonas putida or Bacillus cereus) stimulated the growth of pine seedlings in the presence of Cd(II).”
• Metal toxicity and ectomycorrhizas (2000, background): “Ahonen-Jonnarth et al. (2000) recently showed that in contrast to non-mycorrhizal pine seedlings, seedlings colonised with Suillus 6ariegatus or Rhizopogon roseolus responded to Al exposure with a strongly increased exudation of oxalic acid, which is an efficient Al chelator.”
• New approach for capturing soluble root exudates in forest soils (2008, unknown): “Because mycorrhizal taxa vary in their effects on root C efflux (Ahonen-Jonnarth et al. 2000; Van Scholl et al. 2006), variability in exudation rates at the site may reflect the spatio-temporal differences in fungal taxa colonizing each root system.”
• Rock-eating mycorrhizas: their role in plant nutrition and biogeochemical cycles (2008, background): “Increased exudation of oxalate by tree seedlings under Al toxicity has been shown by Ahonen et al. (2000), and in several cases this was increased further by EcM fungi.”
• Mycorrhizal fungi and their multifunctional roles (2004, unknown): “In such soils the toxicity of the resulting elevated concentrations of Al and other toxic metals may be reduced by increased production of chelating agents such as oxalic acid (Ahonen-Jonnarth et al., 2000).”
• Regulation of low-molecular weight organic acid production in fungi (2009, methodology): “44), Cu (157) and Ni (17) [Oxalate] ECM-C: 3–35 mM, NM-C: 2–6, ECM-Al: 7–84, NM-Al: 5–12, an order of magnitude lower for Cd, Cu and Ni OA 4–10 times higher for ECM compared to NM, trend for increased OX production due to Al exposure Ahonen-Jonnarth et al. (2000)”