Journal of Animal and Plant Sciences
J. Anim. Plant Sci. [ISSN 2071 - 7024]
Volume 15(3): 2275 - 2287 Published October, 2012.
Arbuscular
mycorrhizal fungi species
associated with rhizosphere of Olea europaea L. in Morocco
Warda Kachkouch1, Amina Ouazzani Touhami1, Abdelkarim Filali-Maltouf2, Cherkaoui El Modafar3, Abdelmajid Moukhli4, Ahmed Oukabli5, Rachid Benkirane1 & Allal Douira1.
1. Laboratoire de Botanique et de
Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences,
BP. 133, Université Ibn Tofail, Kénitra, Maroc.
2. Laboratoire de Microbiologie et
Biologie Moléculaire Faculté des Sciences - Université Mohammed V Agdal Av Ibn
Batouta BP 10f4 - Rabat 446 (Maroc)
3. Laboratoire
de Biotechnologie et Phytopathologie
Moléculaire, Faculté des Sciences
et Techniques Guéliz, B.P. 618, 40 000 Marrakech, Maroc
4. UR,
Amélioration génétique des plantes, Institut national de
la Recherche agronomique F- 40 000 Marrakech, Morocco
5. Institut national de la
Recherche agronomique. Amélioration des plantes et Conservation des ressources
phytogénétiques. CRRA, BP 578, Meknes (Maroc).
Key words: Morocco, Olea
europaea, rhizosphere, AMF, diversity.
SUMMARY
A survey on the arbuscular
mycorrhizal fungi (AMF) in the rhizosphere of olive trees and its colonization on
the tree roots were conducted in seven groves located in several regions of
Morocco. The objective of the present study deal the evaluation of the
mycorrhizal status of the olive trees roots and the survey of AMF species in the
olive grove soils. The microscopic analysis of the mycorrhizal olive roots
revealed that all samples formed AM. The frequency and the mean intensity of
root colonization had respectively reached 96 and 30%, indicating the
micotrophic nature of Olea europaea. The number of AM fungal spores
detected in different field soils was relatively high. The spores’ population
varied from 36 to 165 spores/100 g of the soil sample. All spores belonged to Glomineae
and Gigasporineae suborders, represented by Glomaceae, Acaulosporaceae
and Gigasporaceae families. The morphological characters revealed the
existence of 5 spores genres, namely Glomus, Entrophospora,
Gigaspora, Acaulospora and Scutellospora. The dominate Glomus genre is represented by three species. The Entrophospora genre is
represented by only one specie. Acaulospora,
Gigaspora and Scutellospora genres are represented by a non-identified
species each.
.
FULL PAPER [PDF AVAILABLE HERE ]
