Record ID No. |
6655 |
Author(s) |
Mahdhi M.*, MAhmoudi N., Addaiem R., Msaadek A., Rejili M. and Mars M. , 2017 |
Affiliation |
*1 Center for Environmental Research and Studies, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia. |
Title |
Natural Nodulation and AMF Colonization of Retama raetam and their Impact on Soil Microbial Properties in Arid Regions of Tunisia. |
Source. Vol.(no):Page |
Research Journal of Microbiology. 12(1): 82-89. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biological Interaction Ecology |
Sub-subjects |
Plant growth promoting rhizo bacteria |
Host |
Retama raetam |
Organism |
Rhizobia, AMF. |
Country |
Tunisia |
Abstracts |
: Retama raetam is a wild shrub that plays an important role in the restoration and the maintenance of soil fertility. To our knowledge, this legume has not been examined for its root Arbuscular Mycorrhizal Fungi (AMF) colonization. The aims of this study were to evaluate the natural nodulation and AMF colonization of Retama raetam growing in five soils from arid regions of Tunisia and their Impact on soil microbial properties. Legume nodulating rhizobia associated with R. raetam was estimated using the Most Probable Number (MPN) method. The plant mycorrhizal status was assessed by microscopic observation of root fragments after trypan blue staining. The spore density was quantified and was expressed as the total number of spores per 100 g of soil. The effect of soil microorganisms (rhizobia and mycorrhizal fungi) on soil properties was also investigated. Retama
raetam was colonized by both Arbuscular Mycorhizal Fungi (AMF) and rhizobia in all studied sites. The mycorrhizal status and nodulation intensity varied between sites. The highest mycorrhizal and nodulation intensity were observed in Bou Hedma National Park. The AMF colonization was positively correlated with soil microbial properties arbuscular mycorrhizal fungi could effectively participate in the
rehabilitation of arid ecosystems of Tunisia. Arbuscular mycorrhizal fungi could effectively participate in the rehabilitation of arid ecosystems of Tunisia. Retama raetam could be an important alternative to increase soil fertility and to prevent erosion in degrade lands of Tunisia. |