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Arbuscular mycorrhizae modify winter wheat root morphology and alleviate phosphorus deficit stress

Author

Listed:
  • Boris LAZAREVIĆ

    (Department of Plant Nutrition, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia)

  • Tomáš LOŠÁK

    (Faculty of the Regional Development and International Studies, Mendel University in Brno, Brno, Czech Republic)

  • Ahmad M. MANSCHADI

    (Department of Crop Sciences, Division of Agronomy, University of Natural Resources and Life Sciences, Vienna, Tulln, Austria)

Abstract

Arbuscular mycorrhizal (AM) root colonization is known to have beneficial effects on plant growth especially under phosphorus (P) deficit conditions. The objectives of present study were: (i) to quantify changes in early wheat root development of AM-inoculated (AMI) and AM-free (AMF) roots under limited P availability; (ii) to assess possible mitigating effect of AM inoculation on photochemical efficiency under P deficit stress. AMI (inoculated with Rhizophagus irregularis) and AMF wheat plants were grown for 20 days in low (1 μmol/L) and high (50 μmol/L)P treatments. AM inoculation affected root morphology and shoot P concentration in low P treatment. AM inoculation alleviated reduction of the total root length in low P treatment, mainly due to an increase of fine roots length(< 0.5 mm). Contrastingly, shoot dry weight was reduced by AM inoculation in low P treatment. P deficiency decreased photochemical efficiency of wheat plants. However, due to increased sink capacity and facilitated nutrient concentrations AM inoculation alleviates phosphorus deficit stress and increased photochemical efficiency.

Suggested Citation

  • Boris LAZAREVIĆ & Tomáš LOŠÁK & Ahmad M. MANSCHADI, 2018. "Arbuscular mycorrhizae modify winter wheat root morphology and alleviate phosphorus deficit stress," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(1), pages 47-52.
    • Handle: RePEc:caa:jnlpse:v:64:y:2018:i:1:id:678-2017-pse
    DOI: 10.17221/678/2017-PSE
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    Cited by:

    1. Magdalena JASTRZĘBSKA & Marta KOSTRZEWSKA & Kinga TREDER & Przemysław MAKOWSKI & Agnieszka SAEID & Wiesław JASTRZĘBSKI & Adam OKORSKI, 2018. "Fertiliser from sewage sludge ash instead of conventional phosphorus fertilisers?," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(10), pages 504-511.

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