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Titre : Utilisation des arbres et des sols des bords de routes comme indicateurs de la pollution métallique : approches physico-chimique, biochimique et écotoxicologique. Type de document : texte imprimé Auteurs : Hana Alatou, Auteur ; Leila Sahli, Directeur de thèse Mention d'édition : 16/02/2020 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 295 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Ecologie et Environnement Sol arbres Eléments Traces Métalliques marqueurs biochimiques Constantine Soil trees Metallic Trace Elements biochemical markers التربة الاشجار معادن ثقيلة علامات بيو كيميائية قسنطينة Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The assessment of pollution intensity, through passive biomonitoring processes is a very efficient nvironmental technique used for several decades. Indeed, the use of organisms makes it possible to overcome encountered the difficulties during direct physico-chemical measurements, which are often very complex and expensive. In the region of Constantine, it is easy to see that we have a real pollution problem, on the one hand because of the existence of a large car fleet compared to the distances traveled and on the other hand certain climatic and topographical characteristics which create a favorable climate to the development of pollution. In this context, this study focused on the use interest of soils and trees (leaves and bark) as metal pollution indicators in urban areas. The concerned area is the national road N ° 03 linking the Constantine city center to Hamma Bouziane commune, in addition to a control zone which is remoted from any anthropogenic disturbance source (Arboretum of Draa Naga). In order to understand the objectives, three main axes were developed, namely: a pseudo-total and sequential contents quantification in metallic trace elements (HMS) in soils (0-20 cm and 20-40 cm), an abiotic or metallic stress evaluation via the assay of biochemical and HMS markers in 12 ligneous species leaves and bark that found, and also, the lead ecotoxicity assessment in some species via ecotoxicity tests. Our investigations related to the contamination level assessment by HMS were: cadmium (Cd), copper (Cu), manganese (Mn), lead (Pb) and zinc (Zn). Pseudo-total contents in HMS soils in both profiles record the following abundance order : Mn > Pb > Zn > Cu > Cd. Otherwise, the sequential contents study in soils allowed us to evaluate the HMS distribution in the different fractions and thus to highlight the anthropic contribution. Regarding to the revealing markers results of abiotic stress, it appears that the urban area trees have low chlorophyll levels, and high proline and soluble sugars levels compared to those in the control zone. The HMS quantification in leaves and bark recorded the following order of abundance: Mn > Zn > Pb > Cu > Cd. Trees turned out to be good metallic air pollution. The bioconcentration factor and the metal accumulation index confirmed the usefulness and effectiveness of these species in bioindication and / or phytoremediation For the ecotoxicity tests, the concentration that inhibits the 50% of seeds germination is 64.97 μg.L-1 for C. sempervirens and 110.43 μg.L-1 for P. halepensis. Lead seems to have a much greater toxic effect on seed germination of C. sempervirens than on P. halepensis.Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/ALA7613.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11449 Utilisation des arbres et des sols des bords de routes comme indicateurs de la pollution métallique : approches physico-chimique, biochimique et écotoxicologique. [texte imprimé] / Hana Alatou, Auteur ; Leila Sahli, Directeur de thèse . - 16/02/2020 . - جامعة الإخوة منتوري قسنطينة, 2020 . - 295 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie et Ecologie Végétale: Ecologie et Environnement Sol arbres Eléments Traces Métalliques marqueurs biochimiques Constantine Soil trees Metallic Trace Elements biochemical markers التربة الاشجار معادن ثقيلة علامات بيو كيميائية قسنطينة Index. décimale : 570 Sciences de la vie. Biologie Résumé :
The assessment of pollution intensity, through passive biomonitoring processes is a very efficient nvironmental technique used for several decades. Indeed, the use of organisms makes it possible to overcome encountered the difficulties during direct physico-chemical measurements, which are often very complex and expensive. In the region of Constantine, it is easy to see that we have a real pollution problem, on the one hand because of the existence of a large car fleet compared to the distances traveled and on the other hand certain climatic and topographical characteristics which create a favorable climate to the development of pollution. In this context, this study focused on the use interest of soils and trees (leaves and bark) as metal pollution indicators in urban areas. The concerned area is the national road N ° 03 linking the Constantine city center to Hamma Bouziane commune, in addition to a control zone which is remoted from any anthropogenic disturbance source (Arboretum of Draa Naga). In order to understand the objectives, three main axes were developed, namely: a pseudo-total and sequential contents quantification in metallic trace elements (HMS) in soils (0-20 cm and 20-40 cm), an abiotic or metallic stress evaluation via the assay of biochemical and HMS markers in 12 ligneous species leaves and bark that found, and also, the lead ecotoxicity assessment in some species via ecotoxicity tests. Our investigations related to the contamination level assessment by HMS were: cadmium (Cd), copper (Cu), manganese (Mn), lead (Pb) and zinc (Zn). Pseudo-total contents in HMS soils in both profiles record the following abundance order : Mn > Pb > Zn > Cu > Cd. Otherwise, the sequential contents study in soils allowed us to evaluate the HMS distribution in the different fractions and thus to highlight the anthropic contribution. Regarding to the revealing markers results of abiotic stress, it appears that the urban area trees have low chlorophyll levels, and high proline and soluble sugars levels compared to those in the control zone. The HMS quantification in leaves and bark recorded the following order of abundance: Mn > Zn > Pb > Cu > Cd. Trees turned out to be good metallic air pollution. The bioconcentration factor and the metal accumulation index confirmed the usefulness and effectiveness of these species in bioindication and / or phytoremediation For the ecotoxicity tests, the concentration that inhibits the 50% of seeds germination is 64.97 μg.L-1 for C. sempervirens and 110.43 μg.L-1 for P. halepensis. Lead seems to have a much greater toxic effect on seed germination of C. sempervirens than on P. halepensis.Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/biologie/ALA7613.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11449 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ALA/7613 ALA/7613 Thèse Bibliothèque principale Thèses Disponible
Titre : Ecologie de l’ailante glanduleux (Ailanthus altissima) dans la région de Constantine Type de document : texte imprimé Auteurs : Amel Soltani Amri, Auteur ; Djamel Alatou, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 86 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : stress thermique marqueurs biochimiques chlorophylle sucres proline hautes températures Ailanthus altissima facteurs édaphiques heat stress biochemical markers sugars chlorophyll edaphic factors high temperature الوسمات البيوكيميائية الكلوروفيل السكريات البرولين الخصائص الكميائية الفيزيائية للتربة Index. décimale : 570 Sciences de la vie. Biologie Résumé : Biological invasions are a concern of current as well as climate change. Indeed, they can be regarded as an experimental manipulation of biodiversity on a large scale and used to test fundamental hypotheses in ecology. In particular, they allow exploration of impaired functioning of ecosystems by altering species assemblage. This work is to determine the adaptability of the ailanthus dwarf capacity in the region of Constantine, thermal variability for using biochemical markers (chlorophyll, sugars and proline) and the assessment of its ecological character physico-chemical characterization of the soil.
The seedlings under semi controlled under stress of short duration (03 hours) at a temperature ranging from 30°C to 50°C and in which the biochemical parameters are quantized (chlorophyll, sugars and proline). The results show that the seed of Ailanthus are capable to accumulate different osmolytes like proline and sugars in the various organs in response to thermal stress and the highest levels are stored in the roots for the proline and in leaves for sugars reflecting the resistance of this species to the stress. The physicochemical characterization of the environment reveals a high C/N ratio reflecting very favorable conditions for the decomposition of the carbonaceous material and very low levels of trace metals that reflect the geochemical background elements. thus, the species studied showed a good ability to grow in the study site.Diplôme : Magistère En ligne : ../theses/biologie/SOL6673.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9801 Ecologie de l’ailante glanduleux (Ailanthus altissima) dans la région de Constantine [texte imprimé] / Amel Soltani Amri, Auteur ; Djamel Alatou, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2014 . - 86 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : stress thermique marqueurs biochimiques chlorophylle sucres proline hautes températures Ailanthus altissima facteurs édaphiques heat stress biochemical markers sugars chlorophyll edaphic factors high temperature الوسمات البيوكيميائية الكلوروفيل السكريات البرولين الخصائص الكميائية الفيزيائية للتربة Index. décimale : 570 Sciences de la vie. Biologie Résumé : Biological invasions are a concern of current as well as climate change. Indeed, they can be regarded as an experimental manipulation of biodiversity on a large scale and used to test fundamental hypotheses in ecology. In particular, they allow exploration of impaired functioning of ecosystems by altering species assemblage. This work is to determine the adaptability of the ailanthus dwarf capacity in the region of Constantine, thermal variability for using biochemical markers (chlorophyll, sugars and proline) and the assessment of its ecological character physico-chemical characterization of the soil.
The seedlings under semi controlled under stress of short duration (03 hours) at a temperature ranging from 30°C to 50°C and in which the biochemical parameters are quantized (chlorophyll, sugars and proline). The results show that the seed of Ailanthus are capable to accumulate different osmolytes like proline and sugars in the various organs in response to thermal stress and the highest levels are stored in the roots for the proline and in leaves for sugars reflecting the resistance of this species to the stress. The physicochemical characterization of the environment reveals a high C/N ratio reflecting very favorable conditions for the decomposition of the carbonaceous material and very low levels of trace metals that reflect the geochemical background elements. thus, the species studied showed a good ability to grow in the study site.Diplôme : Magistère En ligne : ../theses/biologie/SOL6673.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9801 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SOL/66673 SOL/66673 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude des ressources phytogéniques de blé dur (Triticum durum Desf.) algerien : analyse de la diversité génétique et des critères d'adaptation au milieu Type de document : texte imprimé Auteurs : Univ. de Constantine, Éditeur scientifique Année de publication : 2006 Importance : 142 f. Note générale : 01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Blé dur Diversité génétique Stress hydrique Ressources phytogénetiques Caractères morphologiques physiologiques Marqueurs biochimiques Index. décimale : 570 Sciences de la vie. Biologie Permalink : index.php?lvl=notice_display&id=1392 Etude des ressources phytogéniques de blé dur (Triticum durum Desf.) algerien : analyse de la diversité génétique et des critères d'adaptation au milieu [texte imprimé] / Univ. de Constantine, Éditeur scientifique . - 2006 . - 142 f.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C.
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Blé dur Diversité génétique Stress hydrique Ressources phytogénetiques Caractères morphologiques physiologiques Marqueurs biochimiques Index. décimale : 570 Sciences de la vie. Biologie Permalink : index.php?lvl=notice_display&id=1392 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/4431 BOU/4431 Thèse Bibliothèque principale Thèses Disponible
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) Catégories : Français - Anglais
BiologieTags : 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 الإجهاد المائي علامات فسيولوجية متغيرات زراعية علامات بيوكيميائية علامات تكنولوجية تفاعل وراثي- بيئي 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 : 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)
Catégories : Français - Anglais
BiologieTags : 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 الإجهاد المائي علامات فسيولوجية متغيرات زراعية علامات بيوكيميائية علامات تكنولوجية تفاعل وراثي- بيئي 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 : index.php?lvl=notice_display&id=9859 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité KAR/6756 KAR/6756 Thèse Bibliothèque principale Thèses Disponible
Titre : Valorisation du Pin pignon (Pinus pinea L.) dans la région de Djebel Ouahch - Constantine Type de document : texte imprimé Auteurs : Chaima Touaba, Auteur ; Djamel Alatou, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 274 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Stone pine (Pinus pinea) Djebel Ouahch growth phenology thermal stress hydric stress biochemical markers croissance phénologie stress thermique stress hydrique marqueurs biochimiques الصنوبر الثمري جبل الوحش نمو فينولوجي الإجهاد الحراري الإجهاد المائي العوامل البيوكيميائية Index. décimale : 570 Sciences de la vie. Biologie Résumé : The Stone pine (Pinus pinea L.) is a forest tree species to be valorized on the economic level by its production of wood and pine nuts. In Algeria, it occupies a total surface of 3506 ha; the largest surface is located on the massif of Djebel Ouahch 2278 ha.
The present work aimed mainly at determining on the development and adaptation of this forest species in the zone of Djebel Ouahch for possible reforestations in form of equilateral plantings with a medium age of 40 years. Medium fruit-bearing production is assessed between 3,80 and 523,76 tons of pine nuts in shells. In good conditions, the quantity of harvested is 554,110 cone / hectare in the studied zone.
The physicochemical characterization of the study zone reveals a balanced texture, with a low percentage in loam (~ 27 %), a medium pH ranged between 6 - 7.5 and a very low total quantity of limestone.
On morphological level, the germinal capacity of seeds is of good quality with a bellow and above-ground live biomass fairly sustained. These morphological parameters showed a statistically significant difference among different treatments and seasons.
The seedlings grown in semi controlled conditions suffer from short –term stresses (03 hrs) in a range of temperature varying between-10 °C and 50°C while the biochemical markers (chlorophyll, proline, soluble sugars, proteins and enzymes) are quantified.
Under a thermal pressure, the results show an increase of the chlorophyll pigments at 38°C. The seedlings show an adaptation to lower temperatures at 44°C for the proline, the soluble sugars, the catalase and MDA. The intensity of hydric and thermal stress is significant for all analyzed parameters.
The Pine Seedlings are capable to accumulate the different osmolytes in the different organs in response to combined stress. The accumulation of soluble sugars is highly marked for the control at 38°C; while the increase of the proline is very significant in roots under thermal pressure at 38°C at level N1 and at 44°C at level N2 (55 %). The Seedlings show clear features of biochemical adaptation in response to combined, hydric and thermal, fluctuations.
The phenology analysis was observed on branches of a growth ranging between 15-20 years in the region of Provence-Alpes-Côte d'Azur and in the region of Djebel Ouahch. The exclusion of rainfall diminished the annual number of growth cycles of shoots and their duration and also the speed of needles growth.
The quality of the populations of Stone pine is moderately stable with a weak rate of regeneration and a quite high mortality rate due to anthropic action and fires.
Diplôme : Doctorat En ligne : ../theses/biologie/TOU7227.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10800 Valorisation du Pin pignon (Pinus pinea L.) dans la région de Djebel Ouahch - Constantine [texte imprimé] / Chaima Touaba, Auteur ; Djamel Alatou, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 274 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Stone pine (Pinus pinea) Djebel Ouahch growth phenology thermal stress hydric stress biochemical markers croissance phénologie stress thermique stress hydrique marqueurs biochimiques الصنوبر الثمري جبل الوحش نمو فينولوجي الإجهاد الحراري الإجهاد المائي العوامل البيوكيميائية Index. décimale : 570 Sciences de la vie. Biologie Résumé : The Stone pine (Pinus pinea L.) is a forest tree species to be valorized on the economic level by its production of wood and pine nuts. In Algeria, it occupies a total surface of 3506 ha; the largest surface is located on the massif of Djebel Ouahch 2278 ha.
The present work aimed mainly at determining on the development and adaptation of this forest species in the zone of Djebel Ouahch for possible reforestations in form of equilateral plantings with a medium age of 40 years. Medium fruit-bearing production is assessed between 3,80 and 523,76 tons of pine nuts in shells. In good conditions, the quantity of harvested is 554,110 cone / hectare in the studied zone.
The physicochemical characterization of the study zone reveals a balanced texture, with a low percentage in loam (~ 27 %), a medium pH ranged between 6 - 7.5 and a very low total quantity of limestone.
On morphological level, the germinal capacity of seeds is of good quality with a bellow and above-ground live biomass fairly sustained. These morphological parameters showed a statistically significant difference among different treatments and seasons.
The seedlings grown in semi controlled conditions suffer from short –term stresses (03 hrs) in a range of temperature varying between-10 °C and 50°C while the biochemical markers (chlorophyll, proline, soluble sugars, proteins and enzymes) are quantified.
Under a thermal pressure, the results show an increase of the chlorophyll pigments at 38°C. The seedlings show an adaptation to lower temperatures at 44°C for the proline, the soluble sugars, the catalase and MDA. The intensity of hydric and thermal stress is significant for all analyzed parameters.
The Pine Seedlings are capable to accumulate the different osmolytes in the different organs in response to combined stress. The accumulation of soluble sugars is highly marked for the control at 38°C; while the increase of the proline is very significant in roots under thermal pressure at 38°C at level N1 and at 44°C at level N2 (55 %). The Seedlings show clear features of biochemical adaptation in response to combined, hydric and thermal, fluctuations.
The phenology analysis was observed on branches of a growth ranging between 15-20 years in the region of Provence-Alpes-Côte d'Azur and in the region of Djebel Ouahch. The exclusion of rainfall diminished the annual number of growth cycles of shoots and their duration and also the speed of needles growth.
The quality of the populations of Stone pine is moderately stable with a weak rate of regeneration and a quite high mortality rate due to anthropic action and fires.
Diplôme : Doctorat En ligne : ../theses/biologie/TOU7227.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10800 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité TOU/7227 TOU/7227 Thèse Bibliothèque principale Thèses Disponible
