Magnesium ions alleviate the negative effect of manganese on Glomus claroideum BEG23
Language English Country Germany Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Magnesium pharmacology MeSH
- Fungi drug effects MeSH
- Hydroponics MeSH
- Hyphae drug effects MeSH
- Zea mays growth & development microbiology MeSH
- Culture Media MeSH
- Manganese antagonists & inhibitors pharmacology MeSH
- Mycorrhizae drug effects MeSH
- Symbiosis drug effects MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Magnesium MeSH
- Culture Media MeSH
- Manganese MeSH
The phytotoxicity of excessive levels of manganese (Mn), an essential micronutrient, can be alleviated significantly by a high supply of magnesium (Mg) ions to plants. A similar interaction of these two elements in the development of arbuscular mycorrhizal (AM) fungi has been verified in two experimental systems. In in vitro experiments, an outgrowth of hyphae from excised, surface-disinfected root segments colonised with Glomus claroideum BEG23 was measured after 5 days incubation in liquid media. When only Mn ions were present in the media at higher concentrations (>0.05 mM), the growth of hyphae from root segments was reduced significantly. Addition of magnesium sulphate to the incubation solution reduced the inhibitory effects of Mn on hyphal growth. Alleviation of Mn toxicity by Mg ions observed in in vitro experiments was verified also for the symbiotic association between G. claroideum and maize as a host plant in a hydroponics sand culture experiment.
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