The effect of arbuscular mycorrhizal inoculation and plant growth-promoting rhizobacteria on maize (Zea mays L.) under boron toxicity stress


  • Narges ABDAR Shiraz University, School of Agriculture, Department of Soil Science, Shiraz (IR)
  • Mehdi ZAREI Shiraz University, School of Agriculture, Department of Soil Science, Shiraz; Higher Education Center of Eghlid, Department of Agriculture and Natural Resources, Eghlid (IR)
  • Amir Ghaffar SHAHRIARI Higher Education Center of Eghlid, Department of Agriculture and Natural Resources, Eghlid (IR)
  • Iman MIRMAZLOUM Hungarian University of Agriculture and Life Sciences, Institute of Agronomy, Department of Plant Physiology and Plant Ecology, Ménesi Str. 44, 1118 Budapest (HU)



arbuscular mycorrhiza fungus, boron toxicity, growth promoting plant rhizobacteria, maize


A greenhouse study was conducted to investigate the effect of arbuscular mycorrhiza fungus and plant growth-promoting rhizobacteria on maize (Zea mays L.) yield and boron (B) uptake under excessive B concentrations. Four levels of B (0, 10, 20 and 40 mg kg-1 soil) and four levels of microbial inoculation (non-inoculation, Rhizophagus intraradices, Micrococcus yunnanensis and co-inoculation) were applied. In general, elevated B decreased the maize relative yield, plant dry weight, plant height, total leaf area and chlorophyll content. The highest B uptake was recorded in the 20 mg kg-1 B treatments, whereas the lowest uptake was in B treatments of 0 and 40 mg B kg-1. Excessive B supply increased the proline content and electrolyte leakage of maize leaves. Microbial inoculation did not change the yield of B-stressed plants. In addition, mycorrhiza inoculation and co-inoculation increased the shoot and root B uptake. Maize plants growing at high B concentrations with or without microbial inoculation showed leaf edge burning and necrosis when compared with control treatments. Microbial inoculation improved the maize yield under B stress up to 20 mg B kg-1. Thus, inoculation with arbuscular mycorrhiza and plant growth promoting rhizobacteria can increase the maize tolerance under B toxicity. Nonetheless, the inoculation of bacterium and arbuscular mycorrhiza had a more alleviative effect when the plants were exposed to excess B.


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How to Cite

ABDAR, N., ZAREI, M., SHAHRIARI, A. G., & MIRMAZLOUM, I. (2023). The effect of arbuscular mycorrhizal inoculation and plant growth-promoting rhizobacteria on maize (Zea mays L.) under boron toxicity stress. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 51(4), 13473.



Research Articles
DOI: 10.15835/nbha51413473