Résultat de la recherche
8 recherche sur le tag
'Salinity' 
Visionner les documents numériques
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Interroger des sources externesاثر فعل التداخل بين + Kو + Naعلى الكفاءة الامتصاصية للعناصر الغذائية و انعكاس ذلك على نمو و تطور صنفين وراثيين لنبات الفلفل الحلو . Capsicum annuum Lتحت ظروف التوتر الملحي. / كريمة بوعصابة
Titre : اثر فعل التداخل بين + Kو + Naعلى الكفاءة الامتصاصية للعناصر الغذائية و انعكاس ذلك على نمو و تطور صنفين وراثيين لنبات الفلفل الحلو . Capsicum annuum Lتحت ظروف التوتر الملحي. Type de document : texte imprimé Auteurs : كريمة بوعصابة, Auteur ; سعيدة شوقي, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 180 ورقة. Format : 30 سم. Note générale : 1نسخ موجودة مكتبة المركزية
Langues : Arabe (ara) Catégories : Arabe
5 البيولوجياTags : البيولوجيا وعلم البيئة النباتية:التنوع الحيوي و الإنتاج النباتي الصنف الملوحة التأقلم الحساسية Salinity Adaptation Sensibility Capsicum annuum L. Salinité Variété Sensibilité Index. décimale : 570 بيولوجيا Résumé :
Soil salinity or irrigation water is a constant threat to the survival of garden crops in general and to sweet peppers in particular. Then the selection of adaptive or salinity tolerant types is the best solution to this problem. The aim of this study is to know the mechanisms of adaptation and sensitivity to salinity during the germination phase, seedling growth and flowering stage. Two sweet pepper varieties of Capsicum annuum L. (Super marconi and Marconi) were treated with three different saline concentrations (25-50-150 mmol / l) NaCl, in addition to the control (0 mM / L). was repeated four times and so the experiment contained 32 experimental units The total chlorophyll content of chl (T) in the seedling growth stage outweighs the effect of the specific action of saline treatments on the T, L, EP, IP, LPI, SF, NF, REG plant. TG) were affected by the decline in physiological indicators (PS, PF, TER, IS) (K), chl (b), chl (T) and carotenoids (car).) In response to salinity, there was an increasing in the content of amylase (Pro), Pro (R), Polysaccharides and Suc (F), Suc (R) to avoid high cytotoxicity and Na + toxicity. Salinity also affected the anatomical structure of the stems and roots of both cultivars during both phases of seedling growth and stage of flowering. Where have led to increased skin cells and deformation of some mostly in high concentrations of salt cells (50 and 150 mM / l), a shortage of the crust layer and decreased thickness of the vascular cylinder by increasing saline concentrations. Cultivar Super marconi has prevailed in each general Indicators on the Marconi class that has recorded a drop in its indicators, which is a measure of the behavior of the class and the sensible resistance and it concluded that the variety Super Marconi and more resistant to salinity compared to the variety Marconi .
Note de contenu :
Article: Effect of salinity on biochimical and anatomical characteristics
of sweet pepper (Capsicum annuum L.).
Article: Effet Du Stress Salin Sur Le Comportement Biochimique Et Anatomique Chez Deux Variétés De Piment (Capsicum Annuum L.) À Mila /Algérie,
Diplôme : Doctorat en sciences En ligne : ../theses/biologie/ABOU4453.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11269 اثر فعل التداخل بين + Kو + Naعلى الكفاءة الامتصاصية للعناصر الغذائية و انعكاس ذلك على نمو و تطور صنفين وراثيين لنبات الفلفل الحلو . Capsicum annuum Lتحت ظروف التوتر الملحي. [texte imprimé] / كريمة بوعصابة, Auteur ; سعيدة شوقي, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2019 . - 180 ورقة. ; 30 سم.
1نسخ موجودة مكتبة المركزية
Langues : Arabe (ara)
Catégories : Arabe
5 البيولوجياTags : البيولوجيا وعلم البيئة النباتية:التنوع الحيوي و الإنتاج النباتي الصنف الملوحة التأقلم الحساسية Salinity Adaptation Sensibility Capsicum annuum L. Salinité Variété Sensibilité Index. décimale : 570 بيولوجيا Résumé :
Soil salinity or irrigation water is a constant threat to the survival of garden crops in general and to sweet peppers in particular. Then the selection of adaptive or salinity tolerant types is the best solution to this problem. The aim of this study is to know the mechanisms of adaptation and sensitivity to salinity during the germination phase, seedling growth and flowering stage. Two sweet pepper varieties of Capsicum annuum L. (Super marconi and Marconi) were treated with three different saline concentrations (25-50-150 mmol / l) NaCl, in addition to the control (0 mM / L). was repeated four times and so the experiment contained 32 experimental units The total chlorophyll content of chl (T) in the seedling growth stage outweighs the effect of the specific action of saline treatments on the T, L, EP, IP, LPI, SF, NF, REG plant. TG) were affected by the decline in physiological indicators (PS, PF, TER, IS) (K), chl (b), chl (T) and carotenoids (car).) In response to salinity, there was an increasing in the content of amylase (Pro), Pro (R), Polysaccharides and Suc (F), Suc (R) to avoid high cytotoxicity and Na + toxicity. Salinity also affected the anatomical structure of the stems and roots of both cultivars during both phases of seedling growth and stage of flowering. Where have led to increased skin cells and deformation of some mostly in high concentrations of salt cells (50 and 150 mM / l), a shortage of the crust layer and decreased thickness of the vascular cylinder by increasing saline concentrations. Cultivar Super marconi has prevailed in each general Indicators on the Marconi class that has recorded a drop in its indicators, which is a measure of the behavior of the class and the sensible resistance and it concluded that the variety Super Marconi and more resistant to salinity compared to the variety Marconi .
Note de contenu :
Article: Effect of salinity on biochimical and anatomical characteristics
of sweet pepper (Capsicum annuum L.).
Article: Effet Du Stress Salin Sur Le Comportement Biochimique Et Anatomique Chez Deux Variétés De Piment (Capsicum Annuum L.) À Mila /Algérie,
Diplôme : Doctorat en sciences En ligne : ../theses/biologie/ABOU4453.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11269 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité بوع/4453 بوع/4453 Thèse Bibliothèque principale Thèses Disponible
Titre : Comportement écophysiologique de deux chénopodiacées des genres Atriplex et Spinacia soumises au stress salin. Type de document : texte imprimé Auteurs : Imane Bouchoukh, Auteur ; Chaabane Rahmoune, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2010 Importance : 112 f. Format : 31 cm Note générale : 01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie végétale:Ecophysiologie et biotechnologie végétale Salinité Atriplex halimus Atriplex canescens Spinacia oleracea , longueur
tige longueur racine biomasse Chlorophylles proline sucres solubles ADN SDS-PAGE protéines Salinity length stem length root dry weight Chlorophylls sugars soluble DNA proteins الملوحة طول الساق طول الجذر الكتلة الحيوية الجافة الكلوروفيل البرولين البروتينات السكرياتIndex. décimale : 570 Sciences de la vie. Biologie Résumé : In arid and semi-arid areas, particularly around the Mediterranean Basin, soil salinisation is one of the major abiotic factors which reduce the yield of several cultures. The introduction of tolerant plants to salinity is one of the techniques most used to improve the quality of soil in these areas. Chenopodiaceae constitute a very important family of halophyts, of which are genus Atriplex and Spinacia.
To highlight the potentialities of adaptation to the salinity of Atriplex halimus L, Atriplex canescens L and two varieties of spinach: Spinacia oleracea L., a saline stress was induced by the application of various NaCl doses (0g/l, 6g/l, 12g/l, 18g/l and 24g/l), in semi-controlled conditions.
The tolerance of these genotypes was studied by the capacity of growth and output. Indeed, the average height of the stems, the length of roots and the dry weight at the end of the experiment vary according to the level of saline stress. The two species of Atriplex showed a great resistance to the salinity expressed by their development of important shoots and roots. The two varieties of spinach present a growth adapted to the saline stress, but the introduced variety (Linda) is shown to be more sensitive than the local variety (GSN).The study of the growth of the plants was supplemented by DNA dosage and chlorophylls (A), (b) and (a+b); these two parameters reflect the mitotic and photosynthetic activities respectively.
The accumulation of osmoregulators varies from one species another, namely the free
proline and soluble sugars. Atriplex and spinach accumulate proline in shoots and roots. As for soluble sugars, they are accumulated according to salinity only at the two species of Atriplex. The comparison of the SDS-PAGE profiles of the protein leaves reveals 7 proteins which appear in stress, of a molecular weight of 190, 185, 158, 136, 127.5, 27 and 12 KDa, whose presence and degree of accumulation vary from one genotype to another.Note de contenu : Annexes. Diplôme : Magistère En ligne : ../theses/biologie/BOU5700.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=1795 Comportement écophysiologique de deux chénopodiacées des genres Atriplex et Spinacia soumises au stress salin. [texte imprimé] / Imane Bouchoukh, Auteur ; Chaabane Rahmoune, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2010 . - 112 f. ; 31 cm.
01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie végétale:Ecophysiologie et biotechnologie végétale Salinité Atriplex halimus Atriplex canescens Spinacia oleracea , longueur
tige longueur racine biomasse Chlorophylles proline sucres solubles ADN SDS-PAGE protéines Salinity length stem length root dry weight Chlorophylls sugars soluble DNA proteins الملوحة طول الساق طول الجذر الكتلة الحيوية الجافة الكلوروفيل البرولين البروتينات السكرياتIndex. décimale : 570 Sciences de la vie. Biologie Résumé : In arid and semi-arid areas, particularly around the Mediterranean Basin, soil salinisation is one of the major abiotic factors which reduce the yield of several cultures. The introduction of tolerant plants to salinity is one of the techniques most used to improve the quality of soil in these areas. Chenopodiaceae constitute a very important family of halophyts, of which are genus Atriplex and Spinacia.
To highlight the potentialities of adaptation to the salinity of Atriplex halimus L, Atriplex canescens L and two varieties of spinach: Spinacia oleracea L., a saline stress was induced by the application of various NaCl doses (0g/l, 6g/l, 12g/l, 18g/l and 24g/l), in semi-controlled conditions.
The tolerance of these genotypes was studied by the capacity of growth and output. Indeed, the average height of the stems, the length of roots and the dry weight at the end of the experiment vary according to the level of saline stress. The two species of Atriplex showed a great resistance to the salinity expressed by their development of important shoots and roots. The two varieties of spinach present a growth adapted to the saline stress, but the introduced variety (Linda) is shown to be more sensitive than the local variety (GSN).The study of the growth of the plants was supplemented by DNA dosage and chlorophylls (A), (b) and (a+b); these two parameters reflect the mitotic and photosynthetic activities respectively.
The accumulation of osmoregulators varies from one species another, namely the free
proline and soluble sugars. Atriplex and spinach accumulate proline in shoots and roots. As for soluble sugars, they are accumulated according to salinity only at the two species of Atriplex. The comparison of the SDS-PAGE profiles of the protein leaves reveals 7 proteins which appear in stress, of a molecular weight of 190, 185, 158, 136, 127.5, 27 and 12 KDa, whose presence and degree of accumulation vary from one genotype to another.Note de contenu : Annexes. Diplôme : Magistère En ligne : ../theses/biologie/BOU5700.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=1795 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/5700 BOU/5700 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude ecophysiologique et phytochimique de deux espèces d’Acacia : Acacia albida et Acacia raddiana Type de document : texte imprimé Auteurs : Samira Karoune, Auteur ; Chaabane Rahmoune, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 213 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Acacia albida Acacia raddiana salinité phénol activité antioxydante salinity phenol antioxidant activity الملوحة الفینول المضادة للأكسدة Index. décimale : 570 Sciences de la vie. Biologie Résumé :
Through this work, we studied intra- and interspecific variability in the phenolic composition of two species, Acacia albida and Acacia raddiana and the ex-situ behavior of the latter vis-à-vis the salt stress through morphological, physiological and biochemical parameters.
The results of the phytochemical screening of the two species showed that A.albida is richer in polyphenols (100.94 mg EAG / g DM) and active for scavenging free radical DPPH (26 µg / ml). This species also showed good activity, especially the leaves and bark, through other tests where we noted a total activity equal to 68.67 mg EAG / g DM, an IC50 = 104.33 µg / ml of ABTS assay and an EC50 = 34.33 µg / ml for the reducing power of iron.
The results of the study of the impact of salinity have shown that the seed can germinate at
concentrations up to 12 g / l and maintain growth even at 300 mM NaCl with a decrease in
the ratio of K + / Na + selectivity. Moderate doses of 50 and 100 mM of salt does not affect
the biomass and tissue hydration and stimulate even the accumulation of phenolic compounds in imparting their strong antioxidant activity.
This work led to the development of scientific knowledge in order to use as soil restoration
means degraded drylands and recoverable source of bioactive molecules.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/KAR6897.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10226 Etude ecophysiologique et phytochimique de deux espèces d’Acacia : Acacia albida et Acacia raddiana [texte imprimé] / Samira Karoune, Auteur ; Chaabane Rahmoune, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2016 . - 213 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Acacia albida Acacia raddiana salinité phénol activité antioxydante salinity phenol antioxidant activity الملوحة الفینول المضادة للأكسدة Index. décimale : 570 Sciences de la vie. Biologie Résumé :
Through this work, we studied intra- and interspecific variability in the phenolic composition of two species, Acacia albida and Acacia raddiana and the ex-situ behavior of the latter vis-à-vis the salt stress through morphological, physiological and biochemical parameters.
The results of the phytochemical screening of the two species showed that A.albida is richer in polyphenols (100.94 mg EAG / g DM) and active for scavenging free radical DPPH (26 µg / ml). This species also showed good activity, especially the leaves and bark, through other tests where we noted a total activity equal to 68.67 mg EAG / g DM, an IC50 = 104.33 µg / ml of ABTS assay and an EC50 = 34.33 µg / ml for the reducing power of iron.
The results of the study of the impact of salinity have shown that the seed can germinate at
concentrations up to 12 g / l and maintain growth even at 300 mM NaCl with a decrease in
the ratio of K + / Na + selectivity. Moderate doses of 50 and 100 mM of salt does not affect
the biomass and tissue hydration and stimulate even the accumulation of phenolic compounds in imparting their strong antioxidant activity.
This work led to the development of scientific knowledge in order to use as soil restoration
means degraded drylands and recoverable source of bioactive molecules.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/KAR6897.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10226 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité KAR/6897 KAR/6897 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude de la relation entre les protéines et quelques paramétrés histomorphologiques et physio-biochimiques chez la tomate (Lycopersicon esculentum Mill) sous les conditions salines. Type de document : texte imprimé Auteurs : Chahrazed Dersouni, Auteur ; Saïda Chougui, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 162 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Biodiversité et production végétale salinité physiobiochimique histo-morphologique profil éléctophorétique salinity physio-biochemical histo-morphological electrophoretic profile الملوحة الفزيو-كيماوية المرفو-تشريحية مظهر الرحلان الكهربائي Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The present work aims to determine the protein relationship and the physio-biochemical and histo-morphological functions of two tomato varieties (Lycopersicum esculentum Mill var: RioGrand, Heinz) in saline conditions. For this purpose, four factorial experiments were carried out. In a Hoagland solution in a fully randomized block device with four concentrations of NaCl (S0: 0, S1: 25, S2: 50, S3: 150) mMol and four repeats, the work was performed on 32 experimental units for each experiment under controlled conditions. During the germination phase morphological observation showed that the high saline concentration (150 mMol) has a depressive effect on the germination capacity for both varieties. Growth monitoring and seedling development in saline conditions led to the conclusion that salinity significantly decreased the physio-biochemical and morphological parameters (Sf, Psf, Nf,Pft, Bsr, Bsa, Sr, Tre, ChlT, K + r, K + f, Prot) compared to the control against a remarkable accumulation of osmolgulators (Pro, Suc) this consistent with the accretion of the Na+ ion which reflects on the coefficient of selectivity Na + / K + in the leaves and roots of the main component explained (ACP) by the total proteins revealed of very high significant correlations (positive, negative) with the studied parameters this last one seems to have clarified the state of these two varieties (RioGrand, Heinz) in the saline conditions it emerges that these two genotypes showed different behaviors under the high saline concentrations (150 mMol) or we note at the histological study level a structural absence of the growth pri mayor and secondary and an increase in the size of parenchymal cell lignification in the susceptible variety (RioGrand) where the sensitivity index (Is) was confirmed Its sensitivity and an absence of secondary growth in the tolerant variety (Heinz) at the root level this difference lies in the intensity of the bands as well as in the number of bands obtained each band of an
electrophoretic profile composed of several proteins of different structure.
Note de contenu :
Annexes.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/DER7557.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11395 Etude de la relation entre les protéines et quelques paramétrés histomorphologiques et physio-biochimiques chez la tomate (Lycopersicon esculentum Mill) sous les conditions salines. [texte imprimé] / Chahrazed Dersouni, Auteur ; Saïda Chougui, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2019 . - 162 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Biodiversité et production végétale salinité physiobiochimique histo-morphologique profil éléctophorétique salinity physio-biochemical histo-morphological electrophoretic profile الملوحة الفزيو-كيماوية المرفو-تشريحية مظهر الرحلان الكهربائي Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The present work aims to determine the protein relationship and the physio-biochemical and histo-morphological functions of two tomato varieties (Lycopersicum esculentum Mill var: RioGrand, Heinz) in saline conditions. For this purpose, four factorial experiments were carried out. In a Hoagland solution in a fully randomized block device with four concentrations of NaCl (S0: 0, S1: 25, S2: 50, S3: 150) mMol and four repeats, the work was performed on 32 experimental units for each experiment under controlled conditions. During the germination phase morphological observation showed that the high saline concentration (150 mMol) has a depressive effect on the germination capacity for both varieties. Growth monitoring and seedling development in saline conditions led to the conclusion that salinity significantly decreased the physio-biochemical and morphological parameters (Sf, Psf, Nf,Pft, Bsr, Bsa, Sr, Tre, ChlT, K + r, K + f, Prot) compared to the control against a remarkable accumulation of osmolgulators (Pro, Suc) this consistent with the accretion of the Na+ ion which reflects on the coefficient of selectivity Na + / K + in the leaves and roots of the main component explained (ACP) by the total proteins revealed of very high significant correlations (positive, negative) with the studied parameters this last one seems to have clarified the state of these two varieties (RioGrand, Heinz) in the saline conditions it emerges that these two genotypes showed different behaviors under the high saline concentrations (150 mMol) or we note at the histological study level a structural absence of the growth pri mayor and secondary and an increase in the size of parenchymal cell lignification in the susceptible variety (RioGrand) where the sensitivity index (Is) was confirmed Its sensitivity and an absence of secondary growth in the tolerant variety (Heinz) at the root level this difference lies in the intensity of the bands as well as in the number of bands obtained each band of an
electrophoretic profile composed of several proteins of different structure.
Note de contenu :
Annexes.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/DER7557.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11395 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité DER/7557 DER/7557 Thèse Bibliothèque principale Thèses Disponible
Titre : Identifications des déterminants génétiques pour des performances de production des polyphénols chez le haricot (Phaseolus vulgaris L.) dans des conditions salines. Type de document : texte imprimé Auteurs : Yacine Torche, Auteur ; Saïda Chougui, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 147 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
2 copies imprimées disponiblesLangues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biotechnologie, Biologie et Environnement: Les Bases Biologiques de la Production et Biodiversité Végétale P. vulgaris Salinité Analyse diallèle Marqueurs SSRs et SNPs. Salinity Diallel analysis SSRs and SNPs markers. الملوحة التحليل الأليلي علاماتSSRs et SNPs. Index. décimale : 570 Sciences de la vie. Biologie Résumé : The main objective of the present study is the evaluation of several genotypes of beans Phaseolus vulgaris L. cultivated in Algeria for phenological, physiological and phytochemical traits under salt stress conditions. According to their responses to salinity and their phenotypes, four parents were selected. To carry out this study a half-diallel cross between the parents was undertaken producing six F1 hybrids; the six F1 hybrids were planted to allow self-fertilization and the production of the F2 offspring. All F1 and F2 populations and their parents were planted in a complete randomized block design, under three salt treatments 0, 50 and 100mM for the evaluation of phenological, physiological and phytochemical characteristics, the results obtained were subjected to diallel analysis and then genetically analyzed using SSRs and SNPs as well as a single marker analysis to highlight the correlation between phenotypic and genotypic data. The diallel analysis revealed high significant genotypic variations between the four parents and their six F1 hybrids. General and specific combining abilities were highly significant for all traits studied under all conditions, revealing the important role of both additive and dominant genetic effects for heredity of the traits under study. Parental genotypes Améilore Roza and Coco nain proved to be the best combiners for salinity tolerance; on the other hand the hybrids Amina x Améliore Roza; MGT x Améliore Roza and Coco nain x Amina recorded a high significant percentage of heterosis. Molecular analysis showed that populations from the half diallel cross have a high genetic diversity, these populations can be used later for the production of RILs; in addition, single marker analysis revealed that several SSRs markers were associated with the different traits studied, the markers BMd37 (LG6) BM200 and ATA243 (LG1) showed a strong association with the production of polyphenols and total flavonoids, these markers can be linked to important genes implying a salinity tolerance. These results indicate a high genetic variability in bean populations and a possibility of genetic improvement under salt stress, especially for the biosynthesis of secondary metabolites. Diplôme : Doctorat En ligne : ../theses/biologie/TOR7473.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11306 Identifications des déterminants génétiques pour des performances de production des polyphénols chez le haricot (Phaseolus vulgaris L.) dans des conditions salines. [texte imprimé] / Yacine Torche, Auteur ; Saïda Chougui, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2019 . - 147 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biotechnologie, Biologie et Environnement: Les Bases Biologiques de la Production et Biodiversité Végétale P. vulgaris Salinité Analyse diallèle Marqueurs SSRs et SNPs. Salinity Diallel analysis SSRs and SNPs markers. الملوحة التحليل الأليلي علاماتSSRs et SNPs. Index. décimale : 570 Sciences de la vie. Biologie Résumé : The main objective of the present study is the evaluation of several genotypes of beans Phaseolus vulgaris L. cultivated in Algeria for phenological, physiological and phytochemical traits under salt stress conditions. According to their responses to salinity and their phenotypes, four parents were selected. To carry out this study a half-diallel cross between the parents was undertaken producing six F1 hybrids; the six F1 hybrids were planted to allow self-fertilization and the production of the F2 offspring. All F1 and F2 populations and their parents were planted in a complete randomized block design, under three salt treatments 0, 50 and 100mM for the evaluation of phenological, physiological and phytochemical characteristics, the results obtained were subjected to diallel analysis and then genetically analyzed using SSRs and SNPs as well as a single marker analysis to highlight the correlation between phenotypic and genotypic data. The diallel analysis revealed high significant genotypic variations between the four parents and their six F1 hybrids. General and specific combining abilities were highly significant for all traits studied under all conditions, revealing the important role of both additive and dominant genetic effects for heredity of the traits under study. Parental genotypes Améilore Roza and Coco nain proved to be the best combiners for salinity tolerance; on the other hand the hybrids Amina x Améliore Roza; MGT x Améliore Roza and Coco nain x Amina recorded a high significant percentage of heterosis. Molecular analysis showed that populations from the half diallel cross have a high genetic diversity, these populations can be used later for the production of RILs; in addition, single marker analysis revealed that several SSRs markers were associated with the different traits studied, the markers BMd37 (LG6) BM200 and ATA243 (LG1) showed a strong association with the production of polyphenols and total flavonoids, these markers can be linked to important genes implying a salinity tolerance. These results indicate a high genetic variability in bean populations and a possibility of genetic improvement under salt stress, especially for the biosynthesis of secondary metabolites. Diplôme : Doctorat En ligne : ../theses/biologie/TOR7473.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11306 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité TOR/7473 TOR/7473 Thèse Bibliothèque principale Thèses Disponible 
PermalinkPermalink
Permalink
