Infectivity and effectivity of commercial and native arbuscular mycorrhizal biofertilizers in seedlings of maize (Zea mays)

Jorge Lauriano-Barajas, Rocío Vega-Frutis


Background: Nowadays there is a need to implement novel and effective methods in sustainable agriculture. Arbuscular mycorrhizal (AM) fungi are an alternative that benefits crop productivity and reduces the use of chemical inputs.

Question: Have commercial and native mycorrhizal inoculants the same infectivity? Is the performance of maize seedlings affected by commercial and native inoculum type?

Study species: Maize (Zea mays).

Study site and dates: Greenhouse experiment, March 2016.

Methods: The experimental design was unifactorial (five levels) and completely randomized: four mycorrhizal inocula (liquid, liquid mix, solid, and native AM spores), and one control (NM- inoculum). After a month of inoculating the seedlings, we harvested the plants, and the biomass and AM colonization were evaluated.

Results: The seedlings without AM fungi had greater total above- and belowground biomass compared with the inoculated seedlings. Only native and solid fungus treatments showed AM colonization in their roots. Our results are discussed in terms of soil mineral nutrient concentrations, cost-benefit of mycorrhizal symbiosis, edaphic origin of AM-native and contained of commercial inocula.

Conclusions: The infectivity and effectiveness observed in the maize seedlings depends of mycorrhizal inoculum type.


Corn; growth depression; inoculum; mycorrhiza; phosphorus

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Mayra Gavito,, Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM.

Taraneh Emam,, Department of Plant Sciences, University of California.

Andrea Berruti,, Institute for Sustainable Plant Protection. National Research Council of Italy.


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Botanical Sciences is an international peer-reviewed journal that publishes scientific papers in plant sciences. The arguments, figures / schemes / photographs, quality and the general contents of this publication are full responsibility of the authors, and not commit the Editor- in-Chief or the Sociedad Botánica de México.

Botanical Sciences year 8, Vol. 97, No. 1, January-March 2019. Quarterly publication edited and published by Sociedad Botánica de México A.C. ( Editor in Chief Salvador Arias, Jardín Botánico, Instituto de Biología, 3er Circuito s/n, Ciudad Universitaria, Delegación Coyoacán, C.P. 04510. Reserves of Rights to the Exclusive Use No. 04-2017-040716054100-203, digital-ISSN 2007-4476, both granted by the Instituto Nacional del Derecho de Autor. Responsible for updating the page Pedro López, email:, eScire. Last update March 11, 2019.

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