Calcareous impact on arbuscular mycorrhizal fungus development and on lipid peroxidation in monoxenic roots
| Autor: | Maryline Calonne, Anissa Lounès-Hadj Sahraoui, Benoît Tisserant, Djouher Debiane, Fayçal Ben Jeddi, Salah Rezgui, Frédéric Laruelle, Sonia Labidi, Anne Grandmougin-Ferjani |
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| Rok vydání: | 2011 |
| Předmět: |
Hypha
Plant Science Fungus Horticulture Plant Roots Biochemistry Calcium Carbonate Chicory Lipid peroxidation chemistry.chemical_compound Stress Physiological Mycorrhizae Botany Spore germination Glomeromycota Molecular Biology Glomus biology Fatty Acids fungi General Medicine biology.organism_classification Malondialdehyde Spore Arbuscular mycorrhiza chemistry Lipid Peroxidation |
| Zdroj: | Phytochemistry. 72:2335-2341 |
| ISSN: | 0031-9422 |
| DOI: | 10.1016/j.phytochem.2011.08.016 |
| Popis: | The present work underlined the negative effects of increasing CaCO(3) concentrations (5, 10 and 20 mM) both on the chicory root growth and the arbuscular mycorrhizal fungus (AMF) Glomus irregulare development in monoxenic system. CaCO(3) was found to reduce drastically the main stages of G. irregulare life cycle (spore germination, germinative hyphae elongation, root colonization, extraradical hyphae development and sporulation) but not to inhibit it completely. The root colonization drop was confirmed by the decrease in the arbuscular mycorrhizal fungal marker C16:1ω5 amounts in the mycorrhizal chicory roots grown in the presence of CaCO(3). Oxidative damage evaluated by lipid peroxidation increase measured by (i) malondialdehyde (MDA) production and (ii) the antioxidant enzyme peroxidase (POD) activities, was highlighted in chicory roots grown in the presence of CaCO(3). However, MDA formation was significantly higher in non-mycorrhizal roots as compared to mycorrhizal ones. This study pointed out the ability of arbuscular mycorrhizal symbiosis to enhance plant tolerance to high levels of CaCO(3) by preventing lipid peroxidation and so less cell membrane damage. |
| Databáze: | OpenAIRE |
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