African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6924

Full Length Research Paper

Comparative microscopic observations of arbuscular mycorrhizal fungi after colonization of five Tunisian olive cultivars

Naouraz M’barki
  • Naouraz M’barki
  • Research Laboratory, Improving the Productivity of Olive Tree and Product Quality, Olive Tree Institute, 40 Rue Ibn Khouldoun, PB 14, 4061 Sousse, Tunisia.
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Meriem Tekaya
  • Meriem Tekaya
  • Biochemical Laboratory, Research Laboratory LR12ES05: Lab-NAFS ‘Nutrition-Functional Food and Vascular Health’, Faculty of Medicine, University of Monastir, Tunisia.
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Hechmi Chehab
  • Hechmi Chehab
  • Research Laboratory, Improving the Productivity of Olive Tree and Product Quality, Olive Tree Institute, 40 Rue Ibn Khouldoun, PB 14, 4061 Sousse, Tunisia.
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Feten Aissaoui
  • Feten Aissaoui
  • Research Laboratory, Improving the Productivity of Olive Tree and Product Quality, Olive Tree Institute, 40 Rue Ibn Khouldoun, PB 14, 4061 Sousse, Tunisia.
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Hanen Sfina
  • Hanen Sfina
  • Research Laboratory, Improving the Productivity of Olive Tree and Product Quality, Olive Tree Institute, 40 Rue Ibn Khouldoun, PB 14, 4061 Sousse, Tunisia.
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Zoubaier Mahjoub
  • Zoubaier Mahjoub
  • Research Laboratory, Improving the Productivity of Olive Tree and Product Quality, Olive Tree Institute, 40 Rue Ibn Khouldoun, PB 14, 4061 Sousse, Tunisia.
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Faouzi Attia
  • Faouzi Attia
  • Agricultural Research, Agronutrition, 3 Avenue Orchid, Activestre Park, 31390 Carbonne, France.
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Dalenda Boujnah
  • Dalenda Boujnah
  • Research Laboratory, Improving the Productivity of Olive Tree and Product Quality, Olive Tree Institute, 40 Rue Ibn Khouldoun, PB 14, 4061 Sousse, Tunisia.
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Beligh Mechri
  • Beligh Mechri
  • Research Laboratory, Improving the Productivity of Olive Tree and Product Quality, Olive Tree Institute, 40 Rue Ibn Khouldoun, PB 14, 4061 Sousse, Tunisia.
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  •  Received: 21 September 2017
  •  Accepted: 20 October 2017
  •  Published: 24 May 2018

Abstract

Arbuscular Mycorrhizal Fungi (AMFs) are known as a symbiotic microorganism which ameliorates growth and tolerance against stressful conditions of their host plants. It is characterized by morphological, physiological and biochemical events that are controlled by the interaction of both plants and fungus. The aim of this research was to evaluate the intensity (M%) and the Arbuscules abundance (A%) of mycorrhizal infection with Glomus intraradices in olive (Olea europaea L.) tree roots of five Tunisian local cultivars (cvs Oueslati, Meski, Jarboui, Chemlali and Chetoui). After 2 weeks of acclimatization in a greenhouse, the olive plantlets were inoculated with “G. intraradices”. The estimate of percentage of root colonization was calculated using an adequate method. This method consists of putting fragments of colored roots from each cultivar and observing them in a light microscope. These fragments were noted in a grid based on a scale class. Differences obtained in values were detected in all cultivars. This paper suggests the presence of cultivar-dependent differences in both the M% and A% that can be modified by AM fungi as well as by its interaction with olive roots. Results confirm also that oueslati cv has the best compatibility with G. intraradices. These findings open up many opportunities for mycorrhiza inoculation in the oleaster plants production in Tunisia.

Key words: Olea europaea L., Glomus intraradices, arbuscules, Oueslati cv.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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