Abstract

BUSSO, Mariano  and  BUSSO, Marina. Arbuscular mycorrhizal fungi and common mycorrhizal networks benefit plants through morphological, physiological and productive traits and soil qualityLos hongos micorrícicos arbusculares y las redes micorrízicas comunes benefician a las plantas a través de caracteres morfológicos, fisiológicos y productivos y la calidad del suelo. Lilloa [online]. 2022, vol.59, n.2, pp.301-317. ISSN 0075-9481.  http://dx.doi.org/https://doi.org/10.30550/j.lil/2022.59.2/2022.12.02.

The extraradical hyphae of arbuscular mycorrhizal fungi (AMF) of one plant root system forage for the soil nutrients and induce the root colonization of the nearby plants, which leads to the formation of common mycorrhizal networks (CMNs) that interconnect roots. Inoculation with AMF can increase the root length, surface area and volume of seedlings in nutrient-limited karstic soils. Mycorrhizal symbioses can secrete glomalin to help promoting soil aggregates for water and nutrients storage, through an extended hyphae to absorb water and nutrients from long distances. AMF can boost rhizosphere soil enzyme activities, and may help to drive carbon sequestration. AMF also improve plant growth by advancing soil quality through influencing its structure and texture. As a result, AMF and CMNs benefit plants through improving soil quality and enhancing morphological (e.g., hyphal length, tillering, number of stolons per individual), physiological (e.g., water use efficiency) and productive (e.g., fresh and dry shoot and root weights) traits.

Keywords : Common mycorrhizal networks; morphological; physiological and productive traits; soil quality.

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