Improvement of Cupressus atlantica Gaussen growth by inoculation with native arbuscular mycorrhizal fungi

Ouahmane Lahcen, Hafidi Mohamed, Thioulouse Jean, Ducousso Marc, Kisa Marija, Prin Yves, Galiana Antoine, Boumezzough Ali, Duponnois Robin. 2007. Improvement of Cupressus atlantica Gaussen growth by inoculation with native arbuscular mycorrhizal fungi. Journal of Applied Microbiology, 103 (3) : pp. 683-690.

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Abstract : The study aimed to determine whether inoculation with native arbuscular mycorrhizal (AM) fungi could improve survival and growth of seedlings in degraded soils of Morocco. Methods and Results: Soil samples were collected from the rhizosphere of Cupressus atlantica trees in the N'Fis valley (Haut Atlas, Morocco). AM spores were extracted from the soil, identified and this mixture of native AM fungi was propagated on maize for 12 weeks on a sterilized soil to enrich the fungal inoculum. Then C. atlantica seedlings were inoculated with and without (control) mycorrhizal maize roots, cultured in glasshouse conditions and further, transplanted into the field. The experiment was a randomized block design with one factor and three replication blocks. The results showed that a high AM fungal diversity was associated with C. atlantica; native AM fungi inoculation was very effective on the growth of C. atlantica seedlings in glasshouse conditions and this plant growth stimulation was maintained for 1 year after outplanting. Conclusions: Inoculation of C. atlantica with AM fungi increased growth and survival in greenhouse and field. Significance and Impact of the Study: The data indicate that use of native species of AM fungi may accelerate reforestation of degraded soils. Further studies have to be performed to determine the persistence of these mycorrhizae for a longer period of plantation and to measure the effects of this microbial inoculation on soil biofunctioning. (Résumé d'auteur)

Mots-clés Agrovoc : Cupressus, Symbiose, Inoculation, Mycorhizé, Organisme indigène, Croissance

Mots-clés géographiques Agrovoc : Maroc

Mots-clés complémentaires : Cupressus atlantica, Reboisement

Classification Agris : P34 - Soil biology
K10 - Forestry production

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Ouahmane Lahcen, Université Cadi Ayyad (MAR)
  • Hafidi Mohamed, Université Cadi Ayyad (MAR)
  • Thioulouse Jean, CNRS (FRA)
  • Ducousso Marc, CIRAD-BIOS-UMR LSTM (NCL)
  • Kisa Marija, IRD (FRA)
  • Prin Yves, CIRAD-BIOS-UMR LSTM (FRA) ORCID: 0000-0002-3706-0045
  • Galiana Antoine, CIRAD-BIOS-UMR LSTM (FRA) ORCID: 0000-0002-5293-5049
  • Boumezzough Ali, Université Cadi Ayyad (MAR)
  • Duponnois Robin, IRD (SEN)

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