African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5211

Full Length Research Paper

Interactions between native arbuscular mycorrhizal fungi and phosphate solubilizing fungi and their effect to improve plant development and fruit production by Capsicum annuum L.

Claudia Castillo1,2, Alfredo Morales2,3, Rosa Rubio2,3, José Miguel Barea4* and Fernando Borie2,3
1Escuela de Agronomía, Facultad de Recursos Naturales, Universidad Católica-Temuco, Chile. 2Center of Amelioration and Sustainability of Volcanic Soils, BIOREN_UFRO, Universidad de La Frontera, Temuco, Chile. 3Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile. 4Estación Experimental del Zaidín, Granada, España.
Email: [email protected]

  •  Accepted: 22 May 2013
  •  Published: 25 June 2013


A study was performed to determine the effect of arbuscular mycorrhizal (AM) fungal inoculation, using a locally isolated Claroideoglomus claroideum (Gc) ecotype, on the seedling development of chilean pepper plants, and to select an appropriate growth substrate. The first experiment consisted of two stages: (i) a seedling production stage of pepper plants were germinated and grown, inoculated or not with C. claroideum; and (ii) a seedling transplanting stage, in which seedlings were transplanted to a wider capacity containers, using the same substrates as in the seedling production stage. These were inoculated or not with C. claroideum and/or Penicillium albidum (Pa). A soil mixture was selected as the target substrate for further studies. A second experiment was then carried out and three new phosphate-solubilizing Penicillium that is, Penicillium frequentans,Penicillium jensenii and Penicillium restrictum, were incorporated as inoculation variables, in addition to the already tested P. albidum, inoculated either alone or in co-inoculation withC. claroideum. After 28 weeks, plants were harvested and fruit number, weight, and length were recorded.  A synergistic interaction between C. claroideum and P. albidum to improve fruit weight and phosphorous (P) concentration was evidenced, suggesting a sustainable alternative for chilean pepper production.


Key words: Penicillium, saprophytic fungi, Claroideoglomus claroideum, phosphorus, substrate.