https://dspace.univ-ouargla.dz/jspui/handle/123456789/27334 Thu, 23 Apr 2026 20:46:05 GMT 2026-04-23T20:46:05Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/27366 Titre: IN SILICO RESEARCH OF GENES AND ENCODED PROTEINS FOR SALT STRESS TOLERANCE IN THE LEGUMINOUS Vicia faba L. Auteur(s): AMOURI Adel Amar; BELKHODJA Moulay Résumé: Abiotic stresses affect plant productivity and crop yield, especially legumes. Identifying stress tolerance genes and proteins is important for improving stress tolerance in plants. In addition to the in vitro and in vivo approach, the in silico approach, using bioinformatics tools, represents a predictive and complementary demarche compared to other approaches. In this study, proteins and genes for salt stress tolerance were identified in silico in Vicia faba L., using molecular databases (NCBI, EMBL-EBI and UniProt) and the Blast tool. The analysis made it possible to identify the stress proteins and their coding genes by looking for similarities of function in the model species Arabidopsis thaliana (L.) Heynh and Medicago truncatula Gaertner. The results showed quite significant sequence similarities (E-value = 0) and a high score (high percentage of identity). For example, the proteins "Aabscisic acid activated protein kinase "," Serine/ threonine protein kinase; SRK2I‖ and Serine/ threonine protein kinase SRK2E‖ for salt stress. Description: Algerian journal of arid environment Fri, 31 Dec 2021 00:00:00 GMT https://dspace.univ-ouargla.dz/jspui/handle/123456789/27366 2021-12-31T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/27364 Titre: WAX CHEMICAL COMPOSITION AND MORPHOLOGY IN FOUR PISTACIA SPECIES FROM ALGERIA Auteur(s): DOGHBAGE Abdelghafour; BELHADJ Safia; GAUQUELIN Thierry; GREFF Stephane; TONETTO Alain; DERRIDJ Arezki; MEVY Jean Philippe Résumé: Leaf samples of Pistacia atlantica, P. lentiscus, P. terebinthus and P. vera from different sites, in Algeria, were characterized according to their epicuticular wax chemical composition and morphology. The cuticular waxes were observed under scanning electron microscope and analyzed by gas chromatography coupled to mass spectrometry after cyclohexane extraction. Wax morphology revealed a glossy aspect with a smooth wax layer in P. lentiscus leaves while a thin structure is observed in P. atlantica. The qualitative composition of the waxes, were different for the four species. The principal components were aliphatics, phenols and terpenes. There were, as well, quantitative differences between the taxa, concerning phenol and aliphatic compounds. P. vera show the highest phenol content, while P. atlantica and P. terebinthus have the highest aliphatic contents. Regarding the infraspecific variation, P. atlantica from semi-arid-fresh site exhibit more aliphatic and terpene. For P. lentiscus, sub-humid-mild site exhibited more aliphatic compounds while the semi-arid-cold site had the highest terpenes amount. Description: Algerian journal of arid environment Fri, 31 Dec 2021 00:00:00 GMT https://dspace.univ-ouargla.dz/jspui/handle/123456789/27364 2021-12-31T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/27359 Titre: RURAL ECONOMY OF WOMEN'S HOUSEHOLDS IN THE TAHOUA REGION (NIGER) Auteur(s): MOUSSA DIT KALAMOU Mahamadou; YAMBA Boubacar; LEBAILLY Philippe Résumé: The Tahoua region of Niger is subdivided into three agro-ecological zones: agricultural, agropastoral and pastoral. The majority of the population lives in rural areas in sedentary and nomadic villages and camps. The latter are composed of communities led by male and female heads of household. This article focuses on the rural economy of these households. The results of the field investigations indicate that this household economy is characterized by access to natural resources and ownership of livestock. All income-generating activities for households depend on agricultural production from family farms or fields and livestock production from livestock ownership. The analysis shows that male households own more livestock than female households, so agricultural products provide more income for male heads of household, followed by transfers, petty trade and livestock. Female households earn more income from petty trade than from other activities. As a result, the average income of men is higher than that of women. Of the total sample, 76% make do with only one of the three daily meals, while only 9% of male households manage to guarantee all three daily meals. Households live in a precarious rural economy and spend more in the rainy season. Finally, female households appear to be more vulnerable to insecurity and poverty in Tahoua region. Description: Algerian journal of arid environment Fri, 31 Dec 2021 00:00:00 GMT https://dspace.univ-ouargla.dz/jspui/handle/123456789/27359 2021-12-31T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/27356 Titre: MUTATIONS AND SOCIO-SPATIAL CHANGES IN OASIS AND CAMEL SYSTEMS IN THE ALGERIAN NORTHERN SAHARA Auteur(s): SENOUSSI Abdelhakim; HUGUENIN Johann Résumé: In Algeria, the Saharan space illuminates that this is where the oldest and most refined agrarian civilizations in history were born and fertilized. To this day they remain authentic oasis producers and real camel breeders who have a keen sense of their space, delicately landscaping their terroirs and guiding their steps and herds with astonishing safety. The ancient oasis of Ouargla is the illustration that, which, formerly known as the "capital of oases", is the largest in southern Algeria. This oasis that exceeds the millennium built by our forefathers due to their genius while forging fruitful relationships with nomadic communities. What readings should be punctuated concerning the oasis space and the surrounding territories in the 21st century? Today, the oasis of Ouargla, surrounded by unprecedented urbanization, has been reduced to agricultural perimeters projected in the middle of the desert, while camel now embodies new breeding systems which common point lies in a productive logic. Oasis spaces, as well as camel rearing, are called to unfold through new territorial perspectives and to emerge in sustainability, via the agronomic, social economic and environmental spheres. Description: Algerian journal of arid environmen Fri, 31 Dec 2021 00:00:00 GMT https://dspace.univ-ouargla.dz/jspui/handle/123456789/27356 2021-12-31T00:00:00Z