Abstract

Endomycorrhizal symbiotic association plays an important role in the plant life. Except some families such as Cruciferae, Cyperaceae, Juncaceae and Chenopodiaceae, this association is present in all taxons of plant kingdom. During a prospecting on mycorrhizal symbiotic association, carried out with some species which developed in an arid area in south of Algeria (case of Mecheria - Wilaya of Naâma), Juncus maritimus revealed the presence of the endomyorrhizae with vesicles and intercellular hypae. This perennial species was considered as a very rare plant not forming endomycorrhizae. To confirm this result, we carried out a second prospecting with three species of Juncus which were developed in the west of Algeria J. maritimus (Mecheria Wilaya of Naâma); Juncus effesus (Hammam Bouhdjar wilaya of Ain Temouchent); Juncus sp (Mactaâ, wilaya of Oran). On the other hand, the study of endomycorrhizae of an annual plant (Vicia faba L.) which developed in Mecheria wilaya of Naama was effectuated. The preliminary result revealed the presence of the endomycorrhizae with the Juncus which developed in Mecheria (arid zone) and Mactaâ and their absence in Hammam Bouhjar. The presence of endomycorrhizae in Vicia faba L. was revealed only during the winter season. The study of the climatic factors had been discussed.

Key words: Endomycorrhizae, vesicle, Juncus maritimus, Vicia faba L., climate, arid zone.