Inoculation with the mycorrhizal fungus modulates the relationship between root growth and nutrient content in maize ( ssp. L.).

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ID: 73012
2019
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Abstract
Plant root systems play a fundamental role in nutrient and water acquisition. In resource-limited soils, modification of root system architecture is an important strategy to optimize plant performance. Most terrestrial plants also form symbiotic associations with arbuscular mycorrhizal fungi to maximize nutrient uptake. In addition to direct delivery of nutrients, arbuscular mycorrhizal fungi benefit the plant host by promoting root growth. Here, we aimed to quantify the impact of arbuscular mycorrhizal symbiosis on root growth and nutrient uptake in maize. Inoculated plants showed an increase in both biomass and the total content of twenty quantified elements. In addition, image analysis showed mycorrhizal plants to have denser, more branched root systems. For most of the quantified elements, the increase in content in mycorrhizal plants was proportional to root and overall plant growth. However, the increase in boron, calcium, magnesium, phosphorus, sulfur, and strontium was greater than predicted by root system size alone, indicating fungal delivery to be supplementing root uptake.
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ramrezflores2019inoculationplant Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ramírez-Flores, M Rosario;Bello-Bello, Elohim;Rellán-Álvarez, Rubén;Sawers, Ruairidh J H;Olalde-Portugal, Víctor;
Journal plant direct
Year 2019
DOI
10.1002/pld3.192
URL
Keywords
image analysis maize ionomics maize/zea mays mycorrhizae/mycorrhizal symbiosis nutrient uptake and metabolism root development

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