Follow-up of a Composite Endomycorrhizal Inoculum in the Rhizosphere of Olive Plants, Analysis after 42 Months of Culture
Fairouz Semane
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
Mohamed Chliyeh
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
Warda Kachkouch
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
Jihane Touati
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
Karima Selmaoui
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
Amina Ouazzani Touhami
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
Abdelkarim Filali-Maltouf
Laboratoire de Microbiologie et Biologie Moléculaire, Faculté des Sciences, Université Mohammed V, Agdal, Av. Ibn Batouta, BP 1014, Rabat, Morocco.
Cherkaoui El Modafar
Laboratoire de Biotechnologie, Valorisation et Protection des Agroressources, Faculté des Sciences et Techniques, Université Cadi Ayyad, Guéliz, B.P. 618, 40 000, Marrakech, Morocco.
Abdelmajid Moukhli
Unité de Recherche: Amélioration Génétique des Plantes, Institut National de la Recherche Agronomique, F- 40 000 Marrakech, Morocco.
Rachid Benkirane
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
Allal Douira *
Laboratoire de Botanique et de Protection des Plantes, UFR de Mycologie, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, BP, 133, Kenitra, Morocco.
*Author to whom correspondence should be addressed.
Abstract
Endomycorrhizal inoculum, consisting of more than 26 mycorrhizal species, has been followed over time at the rhizosphere of olive trees. The evolution during time of this endomycorrhizal inoculum at the rhizosphere of plants has been discussed in this study. After 42 months, 45 species were isolated from the rhizosphere of inoculated olive plants. These species belong to 6 genera (Glomus, Acaulospora, Gigaspora; Scutellospora; Pacispora and Entrophospora), from these genera, Glomus was the most dominant (40%) followed by the Acaulospora (30%). Glomus constrictum and G. intraradices were the most abundant species, their frequency are respectively 17% and 15%. In comparison between detected species, those of primary inoculum and those recovered after 30 months, 36 endomycorrhizal species appeared and 14 species disappeared, but four species G. clarum, G. intraradices, G. mossea and G. versiforme have been able to maintain their status and stability of multiplication in the rhizosphere of olive plants.
Keywords: Endomycorrhizal species, olive tree (Olea europaea L.), inoculums, evolution, rhizosphere, 42 months of culture.