03
juillet
2026
- Titre : Identification de marqueur ‘InDel’ au niveau du gène Cu-Zn-superoxidedismutase (SOD) par des approches moléculaires et bioinformatiques
- DOI: 10.71751/JAAOGv1i2y2022-1-8
- Auteur : Rayda BEN AYED; Mohamed Ali TRIKI; Ahmed REBAI
- Abstract : The Cu-Zn-superoxide dismutase (SOD) gene encodes an enzyme involved in the detoxification of superoxide radicals. The genotyping of this gene in 16 Tunisian olive varieties allowed the identification of an InDel-type SNP marker but also to validate the genotype-phenotype relationship between this marker and some quantitative (yield) and qualitative (olive oil quality) parameters. The phylogenetic analysis revealed a clustering into two groups independently of geographical origin. On the basis of bioinformatics analyses, highly significant associations were observed for varieties with the ID genotype producing more linoleic acid and for varieties with the II genotype having a high cholesterol level. This may suggest that varieties with genotype II (mainly Oueslati and Chemlali Tataouine) produce more oleic acid than linoleic acid than those with homozygous DD and heterozygous ID genotypes.
- Pagination : 1-8
03
juillet
2026
- Titre : Les principaux facteurs susceptibles d’améliorer les résultats de l’olivier dans le Nord de la Tunisie : Cas de Siliana
- DOI: 10.71751/JAAOGv1i2y2022-75-88
- Auteur : Mohamed Bechir SAI; Aicha MOKRANI; Mohamed HAMMAMI
- Abstract : The present work is a part of the research program of the olive tree productivity improvement and the product quality.
Among its objectives, the measure of the importance of olive results in its agro-socio-economic context of the north through a sample of olive farms in Siliana and identifying the main factors that can contribute to improve these results.
Results after survey have shown that although the importance of the olive tree and its improvement of the area and incomes of the olive exploitations, many technical and financial constraints have to overcome in order to become economically profitable. - Pagination : 75-88
03
juillet
2026
- Titre : Extra virgin olive oil polyphenols improve hematological parameters and mineral profile disorders in rats exposed to a high dose of acrylamide
- DOI: 10.71751/JAAOGv1i2y2022-59-67
- Auteur : Imen GHORBEL; Mariem Chaabane; Choumous Kallel; Najiba ZEGHAL; Naziha GRATI KAMMOUN
- Abstract : Our study investigated the protective efficacy of extra virgin olive oil polyphenols against disorders in blood hematological parameters and mineral profile in rats exposed to a high dose of acrylamide.
Animals were divided into four groups of six each: group 1, serving as controls, received distilled water; group 2 received ACR (50 mg/kg body weight) by gavage; group 3 received both acrylamide and olive oil polyphenols (1ml) by gavage; group 4 received only polyphenols (1 ml) by gavage for 3 weeks.
ACR-treated group showed significant differences in several hematological parameters including red and white blood cellscount, hemoglobin concentration, hematocrit value and platelet count. Moreover, there were changes in the plasma levels of some minerals such as iron, calcium and magnesium,while the phosphorus levels remained unchanged when compared to those of the control group. Supplementation of olive oil polyphenols restored changes in blood hematological and mineral profiles to near normal values. In conclusion, polyphenols might act as protective agents in preventing ACR-induced disturbances in bloodcell parameters and mineral profile. - Pagination : 59-67
03
juillet
2026
- Titre : DNA barcoding analysis of the microbial community in Olive Orchards: Olea europaea L. Bacterial and fungal diversity in Tunisia
- DOI: 10.71751/JAAOGv1i2y2022-68-74
- Auteur : Houda Gharsallah; Ines Ksentini; Karama Hadj Taieb;Christina Schuster; Mohamed Ali Triki; Mohieddine Ksantini; Andreas Leclerque
- Abstract : Olive production is the main agricultural activity in Tunisia. This study investigated the microbial diversity isolated from soil and the major olive tree insect pests. We aimed to explore the scarcely known microbiota in Tunisian olive orchards as the first step to elucidating the microbial interactions that meddle with biological control. Bacterial and fungal strains were randomly isolated from different biotopes situated in Sfax (Tunisia). The 16S rRNA and ITS gene sequencing were used to identify the microbial community. 88 isolates were shown as belonging to 41Operational Taxonomic Units(OTUs) identified toward the genus level and 39 OTUs identified at the species level. The different olive cultivars depicted distinct communities and exhibited dissimilar amounts of bacteria and fungi with distinct ecological functions that could be considered promising resources in biological control.
- Pagination : 68-74
