Résultat de la recherche
15 résultat(s) recherche sur le tag 'stress hydrique' 
Visionner les documents numériques
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Interroger des sources externesEffets d'une contrainte abiotique (Stress hydrique) sur la plante et les composants de la gaine de Vicia faba L. (leguminosae) / Ratiba Bounouar née Bousba
Titre : Effets d'une contrainte abiotique (Stress hydrique) sur la plante et les composants de la gaine de Vicia faba L. (leguminosae) Type de document : texte imprimé Auteurs : Ratiba Bounouar née Bousba, Auteur ; Université Mentouri, Editeur scientifique ; R Merghem, Directeur de thèse Année de publication : 2001 Importance : 93 f. Note générale : 02 disponibles au magasin de la bibliothèque centrale
01 disponible à la salle de rechercheLangues : Français (fre) Tags : Adaptation Vicia faba L. Stress hydrique Proline Tannin Sucre soluble Index. décimale : 570 Sciences de la vie. Biologie Diplôme : Magistère Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1464 Effets d'une contrainte abiotique (Stress hydrique) sur la plante et les composants de la gaine de Vicia faba L. (leguminosae) [texte imprimé] / Ratiba Bounouar née Bousba, Auteur ; Université Mentouri, Editeur scientifique ; R Merghem, Directeur de thèse . - 2001 . - 93 f.
02 disponibles au magasin de la bibliothèque centrale
01 disponible à la salle de recherche
Langues : Français (fre)
Tags : Adaptation Vicia faba L. Stress hydrique Proline Tannin Sucre soluble Index. décimale : 570 Sciences de la vie. Biologie Diplôme : Magistère Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1464 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire
Titre : Effet du stress hydrique sur quelques paramètres physiologiques et la composition lipidique des feuilles plantules de blé dur (Triticum durum desf) Type de document : texte imprimé Auteurs : Université Mentouri, Editeur scientifique Année de publication : 1998 Importance : 70 f. Note générale : 01 Disponible salle de recherche
02 Disponibles au magasin de la bibliothèque centraleLangues : Français (fre) Tags : Blé dur Stress hydrique Feuille Index. décimale : 570 Sciences de la vie. Biologie Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1552 Effet du stress hydrique sur quelques paramètres physiologiques et la composition lipidique des feuilles plantules de blé dur (Triticum durum desf) [texte imprimé] / Université Mentouri, Editeur scientifique . - 1998 . - 70 f.
01 Disponible salle de recherche
02 Disponibles au magasin de la bibliothèque centrale
Langues : Français (fre)
Tags : Blé dur Stress hydrique Feuille Index. décimale : 570 Sciences de la vie. Biologie Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=1552 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire 
Titre : Interactions génotype-milieu de variétés de blé tendre (Triticum aestivum L.) sous stress hydrique Type de document : texte imprimé Auteurs : Karima Kara, Auteur ; Louhichi Brinis, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2015 Importance : 200 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Triticum aestivum stress hydrique marqueurs physiologiques paramètres agronomiques marqueurs biochimiques marqueurs technologiques interaction génotypesmilieu water stress physiological markers agronomic parameters biochemical markers technological markers genotype-environment interaction ??????? ?????? ?????? ????????? ?????? ??????????? ????? ?????- ???? Index. décimale : 570 Sciences de la vie. Biologie Résumé : Knowledge of the physiological, biochemical, agronomic and technological traits involved in plant adaptation process to abiotic stresses is a decisive step in the fight against drought. This study is a contribution to understanding the mechanisms of tolerance to water stress in bread wheat varieties Triticum aestivum L. and to establish genotype-environment interactions to evaluate the genotypic variability.
In the first series of tests, the study shows that the varieties introduced Cham 6 Hamam 1 and Attila are the most productive. The local variety Ain Abid followed by Attila of Angi-4 are the most tolerant to water stress.
The second experimental trial is to test during two campaigns, 10 bread wheat lines at three different geo-climatic sites: Setif, Constantine and Guelma. The results of phenological, morphological and agronomic parameters fluctuate over time and space. The earliest species provide lower performance parameters to Guelma, while the later varieties give the best yields in Constantine. Local varieties Ain Abid, Arz and introduced line Prl / 2 * Pastor provide the best yield and its components on Setif sites. This last line with Pastor / Wbll1 and Hidhab feature a performance by high yield and components of yield on Constantine and Guelma.
The interaction genotype-environment is very highly significant between all studied agronomic parameters.
On the site of Setif (semi-arid) are rated the highest levels of total protein for Thelin line // 2 * Attila * 2 / Pastor, while Prl / 2 * Pastor accumulates the most important starch contents on Constantine site. Total protein levels are higher on experimental testing of Setif, while higher levels of starch and moisture are obtained for all varieties grown on Constantine and Guelma. The genotype-environment interaction is highly significant for all biochemical and technological parameters. The data show that the line Kauz / Pastor / Fiscal has the highest values W (dough strength) to G (swelling of dough), it also gives the best Pelshenke compared to other lines, it is followed by Pastor / Wbll1 and Thelin // 2 * Attila * 2 / Pastor lines. The latter are characterized by a very high baking strength (strength of wheat). It's on the sites of Setif and Guelma that are expressed wheat lines with the most efficient technological parameters.
The wide variability in gluten strength, character controlled mainly by the allelic variation of loci Glu-A1; Glu-B1; Glu-D1, gives an idea about the genetic diversity obtained by expression and composition of these loci. Gluten, rheological parameters alveograph (W, P), Pelshenke test and SDS sedimentation volume vary as a function of the allelic diversity HMW glutenins. The results show the superiority of the alleles 22, (6 + 8), (7 + 9), (2 + 12), (10 + 5) and (7 + 8), compared to other alleles controlling these parameters.
Diplôme : Doctorat en sciences En ligne : ../theses/biologie/KAR6756.pdf Format de la ressource électronique : Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9859 Interactions génotype-milieu de variétés de blé tendre (Triticum aestivum L.) sous stress hydrique [texte imprimé] / Karima Kara, Auteur ; Louhichi Brinis, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2015 . - 200 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Triticum aestivum stress hydrique marqueurs physiologiques paramètres agronomiques marqueurs biochimiques marqueurs technologiques interaction génotypesmilieu water stress physiological markers agronomic parameters biochemical markers technological markers genotype-environment interaction ??????? ?????? ?????? ????????? ?????? ??????????? ????? ?????- ???? Index. décimale : 570 Sciences de la vie. Biologie Résumé : Knowledge of the physiological, biochemical, agronomic and technological traits involved in plant adaptation process to abiotic stresses is a decisive step in the fight against drought. This study is a contribution to understanding the mechanisms of tolerance to water stress in bread wheat varieties Triticum aestivum L. and to establish genotype-environment interactions to evaluate the genotypic variability.
In the first series of tests, the study shows that the varieties introduced Cham 6 Hamam 1 and Attila are the most productive. The local variety Ain Abid followed by Attila of Angi-4 are the most tolerant to water stress.
The second experimental trial is to test during two campaigns, 10 bread wheat lines at three different geo-climatic sites: Setif, Constantine and Guelma. The results of phenological, morphological and agronomic parameters fluctuate over time and space. The earliest species provide lower performance parameters to Guelma, while the later varieties give the best yields in Constantine. Local varieties Ain Abid, Arz and introduced line Prl / 2 * Pastor provide the best yield and its components on Setif sites. This last line with Pastor / Wbll1 and Hidhab feature a performance by high yield and components of yield on Constantine and Guelma.
The interaction genotype-environment is very highly significant between all studied agronomic parameters.
On the site of Setif (semi-arid) are rated the highest levels of total protein for Thelin line // 2 * Attila * 2 / Pastor, while Prl / 2 * Pastor accumulates the most important starch contents on Constantine site. Total protein levels are higher on experimental testing of Setif, while higher levels of starch and moisture are obtained for all varieties grown on Constantine and Guelma. The genotype-environment interaction is highly significant for all biochemical and technological parameters. The data show that the line Kauz / Pastor / Fiscal has the highest values W (dough strength) to G (swelling of dough), it also gives the best Pelshenke compared to other lines, it is followed by Pastor / Wbll1 and Thelin // 2 * Attila * 2 / Pastor lines. The latter are characterized by a very high baking strength (strength of wheat). It's on the sites of Setif and Guelma that are expressed wheat lines with the most efficient technological parameters.
The wide variability in gluten strength, character controlled mainly by the allelic variation of loci Glu-A1; Glu-B1; Glu-D1, gives an idea about the genetic diversity obtained by expression and composition of these loci. Gluten, rheological parameters alveograph (W, P), Pelshenke test and SDS sedimentation volume vary as a function of the allelic diversity HMW glutenins. The results show the superiority of the alleles 22, (6 + 8), (7 + 9), (2 + 12), (10 + 5) and (7 + 8), compared to other alleles controlling these parameters.
Diplôme : Doctorat en sciences En ligne : ../theses/biologie/KAR6756.pdf Format de la ressource électronique : Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9859 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire
Titre : Sélection in vitro pour la tolérance au stress hydrique chez le blé dur (Triticum durum Desf) : approche protéomique, transcriptomique et génétique. Type de document : texte imprimé Auteurs : Nadia Sandra Kacem, Auteur ; Abdelhamid Djekoun, Directeur de thèse ; Yordan Muhovski, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Durum wheat water stress PEG 6000 in vitro selection somaclonal
variation molecular marker diagonal two-dimensional electrophoresis , qRT-PCR Western blot Blé dur électrophorèse diagonale bidimensionnelle marqueur moléculaire sélection in vitro stress hydrique variation somaclonaleIndex. décimale : 570 Sciences de la vie. Biologie Résumé : The in vitro evaluation of three durum wheat genotypes (Djenah Khetifa, Oued Zenati
and Waha( to water stress tolerance simulated in vitro by different concentrations of
PEG 6000 indicated significant differences among genotypes, PEG concentrations and
their interactions for all the studied characters, indicating genetic variability in PEGsimulated drought stress. The osmotic pressure has negatively affected all parameters
studied. However, cells that continue to grow under severe osmotic stress are
considered as tolerant to water stress. In vitro screening for stress tolerance reveals the
variety Djenah Khetifa as the most tolerant and Waha as sensitive. The studied traits can
be recommended as suitable selection criteria for screening drought-tolerant genotypes.
Three amplified and reproducible locus (gwm331, gwm335 and gwm427) were retained.
These loci provided in total 78 monomorphic loci of which 69 were detected in somaclones.
Five somaclonal variants (DKR1-S1, DKR1-S2, OZR1-S2, WR1-C3 and WR1-S1) were
identified by only two SSR markers. Genetic variation rate was 21.74%. The presence of
selective agent in the medium could explain the observed genetic variations. Somaclonal
variation cannot always be detected at the gross morphological level. The selected SSR
markers could be used to study the uniformity of plants obtained from tissue culture and
varietal identification. Analysis of the proteins by a new two-dimensional diagonal
electrophoresis approach named (D-2DE) followed by MALDI-TOF mass spectrometry
has identified six differentially expressed proteins. For each variety, the level of mRNA
expression of three candidate genes (globulin, GAPDH and peroxidase) and a
ubiquitous (Actine) gene was determined by qRT-PCR. The amounts of mRNA of the
three genes are partially correlated with the amounts of proteins. These genes were
slightly up-regulated over the control. The D-2DE results were validated using Western
blot analysis with specific anti-globulin and anti-glyceraldehyde in the embryogenic
calli of wheat, in response to water stress. The proteins identified through this technique
provide new insights as to how calli respond to osmotic stress. Our method of study
provides an original and relevant approach that could contribute significantly to a better
understanding of possible linkages between the abundance of specific proteins and the
acclimation of durum wheat to water stress at the cellular level.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/KAC7070.pdf Format de la ressource électronique : Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10531 Sélection in vitro pour la tolérance au stress hydrique chez le blé dur (Triticum durum Desf) : approche protéomique, transcriptomique et génétique. [texte imprimé] / Nadia Sandra Kacem, Auteur ; Abdelhamid Djekoun, Directeur de thèse ; Yordan Muhovski, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2017.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Durum wheat water stress PEG 6000 in vitro selection somaclonal
variation molecular marker diagonal two-dimensional electrophoresis , qRT-PCR Western blot Blé dur électrophorèse diagonale bidimensionnelle marqueur moléculaire sélection in vitro stress hydrique variation somaclonaleIndex. décimale : 570 Sciences de la vie. Biologie Résumé : The in vitro evaluation of three durum wheat genotypes (Djenah Khetifa, Oued Zenati
and Waha( to water stress tolerance simulated in vitro by different concentrations of
PEG 6000 indicated significant differences among genotypes, PEG concentrations and
their interactions for all the studied characters, indicating genetic variability in PEGsimulated drought stress. The osmotic pressure has negatively affected all parameters
studied. However, cells that continue to grow under severe osmotic stress are
considered as tolerant to water stress. In vitro screening for stress tolerance reveals the
variety Djenah Khetifa as the most tolerant and Waha as sensitive. The studied traits can
be recommended as suitable selection criteria for screening drought-tolerant genotypes.
Three amplified and reproducible locus (gwm331, gwm335 and gwm427) were retained.
These loci provided in total 78 monomorphic loci of which 69 were detected in somaclones.
Five somaclonal variants (DKR1-S1, DKR1-S2, OZR1-S2, WR1-C3 and WR1-S1) were
identified by only two SSR markers. Genetic variation rate was 21.74%. The presence of
selective agent in the medium could explain the observed genetic variations. Somaclonal
variation cannot always be detected at the gross morphological level. The selected SSR
markers could be used to study the uniformity of plants obtained from tissue culture and
varietal identification. Analysis of the proteins by a new two-dimensional diagonal
electrophoresis approach named (D-2DE) followed by MALDI-TOF mass spectrometry
has identified six differentially expressed proteins. For each variety, the level of mRNA
expression of three candidate genes (globulin, GAPDH and peroxidase) and a
ubiquitous (Actine) gene was determined by qRT-PCR. The amounts of mRNA of the
three genes are partially correlated with the amounts of proteins. These genes were
slightly up-regulated over the control. The D-2DE results were validated using Western
blot analysis with specific anti-globulin and anti-glyceraldehyde in the embryogenic
calli of wheat, in response to water stress. The proteins identified through this technique
provide new insights as to how calli respond to osmotic stress. Our method of study
provides an original and relevant approach that could contribute significantly to a better
understanding of possible linkages between the abundance of specific proteins and the
acclimation of durum wheat to water stress at the cellular level.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/KAC7070.pdf Format de la ressource électronique : Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10531 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire
Titre : Effet de l’inoculation des céréales par les PGPR et les mycorhizes en condition de déficit hydrique Type de document : texte imprimé Auteurs : Wassila Nadji, Auteur ; Abdelhamid Djekoun, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 128 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles.
Langues : Français (fre) Tags : Durum wheat soft wheat barley triticale water stress inoculation Frankia Azospirillum mycorrhizal spores diversity Blé dur blé tendre orge stress hydrique Frankia Cci3 Azospirillum brasilense spores des mycorhizes diversité ????? ????? ?????? ?????????? ??????? ?????? ????? ?????????? ???????? ??????? Index. décimale : 570 Sciences de la vie. Biologie Résumé : In Algeria, cereal production remains deficient and does not meet growing demand. It is strongly linked on the first hand to climatic conditions, water stress, increased abnormal temperatures, low rainfall and on the other hand to the characteristic of soils which lack nitrogen and phosphorus and all these factors affect and fall yields. Several approaches to improve cereal production are used, among which is the method based on the use of microorganisms such as Plant Growth Promoting Rhizobacteria (PGPR) and arbuscular mycorrhizal fungi which are the
main symbiotic components of the soil. These fungal symbiotes are known in the course of the main biogeochemical cycles of soils in the growth of plants by promoting their mineral and hydric nutrients. The aim of this work is to study the diversity of endomycorrhizal spores in durum wheat fields (Triticum durum) in arid, semi-arid and coastal zones. Soil samples were collected from the Algerian eastern wheat patches, the spores were isolated by the wet sieving method and observed under the binocular microscope to sort and count according to color,
shape and size. Physico-chemical and catabolic analyzes of soils as well as mycorhization parameters were calculated. The field soil of the semi-arid regions of the eastern region is clayey limono and clay loam, its pH is alkaline (7.54-8.27), the total nitrogen content is (0.023 to 0.082%), Phosphorus are between (1.63% -7.74%). The presence of several morphotypes was noted. The latter are classified as follows: Glomeraceae, Acaulosporaceae, Scutellosporaceae with a predominance of Glomeraceae in the different sites according to the climate and the
nature of the soils. The presence of these families demonstrates biodiversity in the plots of wheat in eastern Algeria. Secondly a comparative study on the morphological and biochemical physiological level of the behavior of plants inoculated by mycrosymbiotes of two genotypes of durum wheat, soft wheat, barley and triticale in the presence or absence of water stress Under greenhouse conditions under controlled conditions. Trials were conducted for three years.
These genotypes were inoculated with three Frankia Cci3 inocula, Azospirillum brasilense and mycorrhizal spores. After cultivation, the plants were harvested. The growth parameters were measured as well as the dry weight of the plant and roots and the chlorophyll and nitrogen levels.The obtained results are significant. They show that inoculation with mycorrhizal spores (IM) treatment improves the growth of the plant in length of ear leaves and roots. The Azospirillum (AI) treatment has a favorable effect on the nitrogen content accumulated in the
leaves of the inoculated plants and the plants inoculated under water stress compared to the control plants
Diplôme : Doctorat En ligne : ../theses/biologie/NAD7171.pdf Format de la ressource électronique : Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10586 Effet de l’inoculation des céréales par les PGPR et les mycorhizes en condition de déficit hydrique [texte imprimé] / Wassila Nadji, Auteur ; Abdelhamid Djekoun, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2017 . - 128 f. ; 30 cm.
2 copies imprimées disponibles.
Langues : Français (fre)
Tags : Durum wheat soft wheat barley triticale water stress inoculation Frankia Azospirillum mycorrhizal spores diversity Blé dur blé tendre orge stress hydrique Frankia Cci3 Azospirillum brasilense spores des mycorhizes diversité ????? ????? ?????? ?????????? ??????? ?????? ????? ?????????? ???????? ??????? Index. décimale : 570 Sciences de la vie. Biologie Résumé : In Algeria, cereal production remains deficient and does not meet growing demand. It is strongly linked on the first hand to climatic conditions, water stress, increased abnormal temperatures, low rainfall and on the other hand to the characteristic of soils which lack nitrogen and phosphorus and all these factors affect and fall yields. Several approaches to improve cereal production are used, among which is the method based on the use of microorganisms such as Plant Growth Promoting Rhizobacteria (PGPR) and arbuscular mycorrhizal fungi which are the
main symbiotic components of the soil. These fungal symbiotes are known in the course of the main biogeochemical cycles of soils in the growth of plants by promoting their mineral and hydric nutrients. The aim of this work is to study the diversity of endomycorrhizal spores in durum wheat fields (Triticum durum) in arid, semi-arid and coastal zones. Soil samples were collected from the Algerian eastern wheat patches, the spores were isolated by the wet sieving method and observed under the binocular microscope to sort and count according to color,
shape and size. Physico-chemical and catabolic analyzes of soils as well as mycorhization parameters were calculated. The field soil of the semi-arid regions of the eastern region is clayey limono and clay loam, its pH is alkaline (7.54-8.27), the total nitrogen content is (0.023 to 0.082%), Phosphorus are between (1.63% -7.74%). The presence of several morphotypes was noted. The latter are classified as follows: Glomeraceae, Acaulosporaceae, Scutellosporaceae with a predominance of Glomeraceae in the different sites according to the climate and the
nature of the soils. The presence of these families demonstrates biodiversity in the plots of wheat in eastern Algeria. Secondly a comparative study on the morphological and biochemical physiological level of the behavior of plants inoculated by mycrosymbiotes of two genotypes of durum wheat, soft wheat, barley and triticale in the presence or absence of water stress Under greenhouse conditions under controlled conditions. Trials were conducted for three years.
These genotypes were inoculated with three Frankia Cci3 inocula, Azospirillum brasilense and mycorrhizal spores. After cultivation, the plants were harvested. The growth parameters were measured as well as the dry weight of the plant and roots and the chlorophyll and nitrogen levels.The obtained results are significant. They show that inoculation with mycorrhizal spores (IM) treatment improves the growth of the plant in length of ear leaves and roots. The Azospirillum (AI) treatment has a favorable effect on the nitrogen content accumulated in the
leaves of the inoculated plants and the plants inoculated under water stress compared to the control plants
Diplôme : Doctorat En ligne : ../theses/biologie/NAD7171.pdf Format de la ressource électronique : Permalink : http://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10586 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire
Permalink
Permalink
PermalinkPermalinkPermalink
Permalink
Permalink
Permalink
Permalink
Permalink
