Morphological and Structural Diversities of Indigenous Mycorrhiza Communities Associated to Castor Bean from Adamawa Cameroon

Lucien Tatchum Tchuenteu *

Laboratory of Biodiversity and Sustainable Development, Department of Biological Sciences, Faculty of Science, University of Ngaoundere-Cameroon, P.O. Box 454, Ngaoundere, Cameroon.

Abba Maimouna

Laboratory of Biodiversity and Sustainable Development, Department of Biological Sciences, Faculty of Science, University of Ngaoundere-Cameroon, P.O. Box 454, Ngaoundere, Cameroon.

Olivia Wafo Youmbi

Laboratory of Biodiversity and Sustainable Development, Department of Biological Sciences, Faculty of Science, University of Ngaoundere-Cameroon, P.O. Box 454, Ngaoundere, Cameroon.

Clautilde Megueni

Laboratory of Biodiversity and Sustainable Development, Department of Biological Sciences, Faculty of Science, University of Ngaoundere-Cameroon, P.O. Box 454, Ngaoundere, Cameroon.

*Author to whom correspondence should be addressed.


Abstract

This study describes the diversity of arbuscular mycorrhizal fungi (AMF) that enter into association with castor bean growth wild in Subsaharan Africa. Three sites of castor bean stands were selected in each of the three Subdivisions (Ngaoundere I, Ngaoundere II and Nyambaka) of the Vina Division in Adamawa Cameroon. Soil samples and roots were taken from each castor bean rhizosphere. All samples from one site were mixed into a composite sample. Leek was used as trap plant. Mycorrhizal parameters, spores density and specific richness were determined following to the standard methods. After spore extraction, species identification was obtained through the informations provided by the International Vesicular Mycorrhizal fungi collection. Results indicate that Cameroonian castor bean accession was found to be symbiotic with AMF under Sudano-Guinean climate of Adamawa Cameroon. The morphological and structural characterization enabled the description of six AMF species, belonging to three genera: Glomus fasciculatum, Glomus sp1, Glomus sp2, Scutellospora calospora,  Scutellospora purpurasens, Entrophospora infrequens. These findings open opportunities for domestication and application of AMF for a sustainable castor bean productivity.

Keywords: Ricinus communis L., mycorrhizal diversity, Adamawa Cameroon.


How to Cite

Tchuenteu, L. T., Maimouna, A., Youmbi, O. W., & Megueni, C. (2020). Morphological and Structural Diversities of Indigenous Mycorrhiza Communities Associated to Castor Bean from Adamawa Cameroon. Journal of Experimental Agriculture International, 42(2), 16–24. https://doi.org/10.9734/jeai/2020/v42i230466

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