biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 46:297-299, 2003 | DOI: 10.1023/B:BIOP.0000022270.46561.0c

Amelioration of Pb and Mn Toxicity to Arbuscular Mycorrhizal Fungus Glomus intraradices by Maize Root Exudates

R. Malcová1, M. Gryndler2
1 Institute of Botany, Academy of Sciences of the Czech Republic, Průhonice, Czech Republic
2 Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague 4, Czech Republic

The effect of maize root exudates on the toxicity of lead and manganese to arbuscular mycorrhizal fungus (AMF) Glomus intraradices was studied in vitro by observation of intraradical hyphae regrowth from colonised root segments. Higher heavy metal (HM) concentrations strongly reduced the hyphal growth, however, the inhibitory effect was to a large extent eliminated by the addition of maize root exudates to the media. However, the capacity of exudates to ameliorate HM toxicity was limited and did not operate when a threshold HM concentration was reached.

Keywords: heavy metals; hyphal growth; Zea mays
Subjects: Glomus intraradices; heavy metals; lead, amelioration of Pb and Mn toxicity; manganese, amelioration of Pb and Mn toxicity; mycorrhiza, arbuscular; resistance/tolerance to toxicity of heavy metals; Zea mays

Published: September 1, 2003  Show citation

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Malcová, R., & Gryndler, M. (2003). Amelioration of Pb and Mn Toxicity to Arbuscular Mycorrhizal Fungus Glomus intraradices by Maize Root Exudates. Biologia plantarum, 46(2), 297-299. doi: 10.1023/B:BIOP.0000022270.46561.0c
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