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Benefits of dual inoculation with arbuscular mycorrhizal fungi and rhizobia on Phaseolus vulgaris planted in a low-fertility tropical soil

Razakatiana Adamson Tsoushima Ernest, Trap Jean, Baohanta Rondro Harinisainana, Raherimandimby Marson, Le Roux Christine, Duponnois Robin, Ramanankierana Heriniaina, Becquer Thierry. 2020. Benefits of dual inoculation with arbuscular mycorrhizal fungi and rhizobia on Phaseolus vulgaris planted in a low-fertility tropical soil. Pedobiologia, 83:150685, 4 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Abstract : The growth response of Phaseolus vulgaris to dual inoculation with arbuscular mycorrhizal (AM) fungi and rhizobia was studied in a low-fertility tropical soil in Madagascar. Two isolates of AM fungi identified as Acaulospora sp. and Glomus sp., respectively, along with a cocktail of ten Rhizobium spp. strains were used to conduct a greenhouse experiment in a fully randomized block design with two factors. The Phaseolus vulgaris seedlings received one of the following inoculation treatments: no inoculation, separate inoculation with each of the three microbial symbionts (the two AM fungal isolates and the rhizobia), and co-inoculation with each of the two AM fungal isolates and the mix of rhizobium strains. The results showed an additive effect of co-infection by AM fungi and rhizobia on plant growth and on the total N content of the plants, along with a synergistic effect on the total P content, the number of nodules and the mycorrhizal rate of the plants. Dual symbiosis with native strains contributes to the success of legumes, especially in harsh environments and low-fertility tropical soils.

Mots-clés Agrovoc : Phaseolus vulgaris, Arbuscular mycorrhiza [EN], Rhizobium, Sol tropical, Fertilité du sol, Acaulospora, Glomus, Inoculation des racines

Mots-clés géographiques Agrovoc : Madagascar

Mots-clés libres : Arbuscular mycorrhizal fungi, Rhizobia, Dual inoculation, Native strains, Low-fertility tropical soil

Classification Agris : F60 - Plant physiology and biochemistry
F62 - Plant physiology - Growth and development

Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques

Auteurs et affiliations

  • Razakatiana Adamson Tsoushima Ernest, Université d'Antananarivo (MDG)
  • Trap Jean, IRD (FRA)
  • Baohanta Rondro Harinisainana, CNRE [Centre National de Recherches sur l'Environnement] (MDG)
  • Raherimandimby Marson, Université d'Antananarivo (MDG)
  • Le Roux Christine, CIRAD-BIOS-UMR LSTM (FRA) ORCID: 0000-0003-0668-3589
  • Duponnois Robin, IRD (FRA)
  • Ramanankierana Heriniaina, CNRE [Centre National de Recherches sur l'Environnement] (MDG)
  • Becquer Thierry, IRD (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/597058/)

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