Mycorrhizal status of main spontaneous or introduced forest trees in El Tarf province (Algerian North-east)

Year 2015, Volume: 5 Issue: 2, 40 - 45, 23.07.2016

Arifa Beddiar Meriem Adouane Imene Boudiaf Adem Fraga

Abstract

In Algeria, often, serious imbalances of the forest ecosystems caused by the badly led exploitations, the repeated fires, the overgrazing involve the disappearance of the timbered state on vast territories. Within the framework of the plantation and restoration programs of these degraded forests, we plan to contribute to it by tests of controlled mycorrhization of forest tees in nursery. But to realize these tests, it is necessary to know beforehand the natural symbiotic status of the studied species. We present there, the first stage of our work which consisted in establishing the mycorrhizal status of main spontaneous or introduced forest species into Algerian North-east. The study was carried out in El Tarf province and related to all the species of pine, oaks and other leafy trees existing in this area. The results show that all the species observed have either ectomycorrhizas (ECM) or arbuscular endomycorrhizas (AM) or both at the same time. In addition, the introduced species of the Acacia or Casuarina genus carry AM and also nitrogen fixing nodules. It should be noted the remarkable diversity of ectomycorrhizal morphotypes associated to the pines and to the oaks and also that of the endomycorhizals fungi spores occur in the rhizosphere of other species. Lastly, it is significant to note the omnipresence of Cenococcum geophilum mycorrhiza in all the stations and the majority of the ectomycorrhizal trees

Keywords

ectomycorrhizas, arbuscular mycorrhizas, forest species, Algerian North-east

References

• Agerer, R. (1987-1996). Colour Atlas of ectomycorrhizae. Einhorn-Verlag Eduard Dietenberger, Schwäbisch Gmünd.
• Bä, A., Duponnois, R., Diabaté, M. & Dreyfus, B. (2011). Les champignons ectomycorhiziens des arbres forestiers en Afrique de l’ouest. IRD Editions.
• Belair de, G. (1990). Structure, fonctionnement et perspectives de gestion de quatre complexes lacustres et marécageux (El-Kala Est algérien). PhD Thesis U.S.T.I Montpellier University.
• Daniels, B. A. & Skipper, H. D. (1982). Methods for the recovery and quantitative estimation of propagules from soil. In: Methods and principles of mycorrhizal research. Schenck, .C. (ed). Amer. Phyt. Soc., ( pp 29-35).
• Dommergues, Y. Duhoux, E. & Diem, H. G. (1999). Les arbres fixateurs d’azote. Caractéristiques fondamentales et rôle dans l’aménagement des écosystèmes méditerranéens et tropicaux. CIRAD, Espace, FAO et IRD (eds).
• Emberger, L. (1955). Une classification biogéographique des climats. Rec. Trav. Lab. Oceol. Zool., Fac. Sci. Montpellier Ser. Bot., 7, (pp 1-43).
• Garbaye, J. & Guehl, J. M. (1997). Le rôle des ectomycorhizes dans l’utilisation de l’eau par les arbres forestiers. Revue Forestière Française, n° spécial, (pp 106-120).
• Gerdemann, J. W. (1963). Spores of mycorhizal endogone species extracted from soil by wet sieving and decanting. Trans-Br-Mycol Soc 46, (pp 234-235).
• Joleau, D. L. (1936). Etude géologique de la région de Bône et de la Calle. Bull. Serv. Carte. Géol. De l’Algérie. 2° série stratigraphique. Description régionale n° 2.
• Kormanik, P. P., Bryan, W. C. & Schultz, R. C. (1980). Procedures and equipment for staining large numbers of plant root samples for endomycorrhizal assay. Can. J. Microbiol. 26, pp 536-538.
• Le Tacon, F. (1997). Vers une meilleure prise en compte des champignons mycorhiziens dans la gestion forestière. Revue Forestière Française, n° spécial, (pp 245- 255).
• Marre, A. (1992). Le tell oriental algérien de Collo à la frontière tunisienne. Etude géomorphologique. O.P.U. Alger, (pp 413-624).
• Messaoudène, M., Metna, B. & Djouaher, N. (1996). La régénération de Quercus suber (L) dans la forêt domaniale de Beni-gobri (Algérie). Actes du séminaire méditerranéen sur la régénération des forêts de Chêneliège. Tabarka, Du 22 au 24 Oct. 1996. Annales de l'’NRF.
• Schenck, N.C. & Perez, Y. (1986). Manual of the identification VA mycorrhizal fungi. INVAM
• Selosse, M. A. & Le Tacon, F. (1999). Les champignons dopent la forêt. La recherche 319, ( pp 33-35).
• Trappe, J. M. (1977). Biogeography of hypogenous fungi: trees, mammals and continental drift. Abstr. 2nd Int. Mycol. Congr. Inc., Bigelow H E, Simmons E G (eds), Tampa, USA.
• Trouvelot, A. Kough, J. L. & Gianinazzi-Pearson, V. (1986). Mesure du taux de mycorhization VA d’un système radiculaire. Recherche d’une méthode d’estimation ayant une signification fonctionnelle. In: Physiological and genetic aspects of mycorrhizal symbioses (eds. V. Gianinazzi-Pearson et S. Gianinazzi): 217-221. INRA, Paris.