Gamma irradiation effects on durum wheat (Triticum durum Desf.) under various conditions.
Identifieur interne : 000659 ( Main/Exploration ); précédent : 000658; suivant : 000660Gamma irradiation effects on durum wheat (Triticum durum Desf.) under various conditions.
Auteurs : M. Melki [Tunisie] ; Th DahmaniSource :
- Pakistan journal of biological sciences : PJBS [ 1028-8880 ] ; 2009.
Descripteurs français
- KwdFr :
- Chlorophylle (analyse), Chlorophylle (métabolisme), Déshydratation (), Eau (analyse), Feuilles de plante (), Feuilles de plante (effets des radiations), Germination (effets des radiations), Graines (effets des radiations), Membrane cellulaire (effets des radiations), Membrane cellulaire (physiologie), Photosynthèse (effets des radiations), Photosynthèse (physiologie), Racines de plante (), Racines de plante (anatomie et histologie), Racines de plante (effets des radiations), Rayons gamma, Triticum (), Triticum (anatomie et histologie), Triticum (effets des radiations), Triticum (physiologie).
- MESH :
- analyse : Chlorophylle, Eau.
- anatomie et histologie : Racines de plante, Triticum.
- effets des radiations : Feuilles de plante, Germination, Graines, Membrane cellulaire, Photosynthèse, Racines de plante, Triticum.
- métabolisme : Chlorophylle.
- physiologie : Membrane cellulaire, Photosynthèse, Triticum.
- Déshydratation, Feuilles de plante, Racines de plante, Rayons gamma, Triticum.
English descriptors
- KwdEn :
- Cell Membrane (physiology), Cell Membrane (radiation effects), Chlorophyll (analysis), Chlorophyll (metabolism), Dehydration (prevention & control), Gamma Rays, Germination (radiation effects), Photosynthesis (physiology), Photosynthesis (radiation effects), Plant Leaves (chemistry), Plant Leaves (radiation effects), Plant Roots (anatomy & histology), Plant Roots (chemistry), Plant Roots (radiation effects), Seeds (radiation effects), Triticum (anatomy & histology), Triticum (chemistry), Triticum (physiology), Triticum (radiation effects), Water (analysis).
- MESH :
- chemical , analysis : Chlorophyll, Water.
- chemical , metabolism : Chlorophyll.
- anatomy & histology : Plant Roots, Triticum.
- chemistry : Plant Leaves, Plant Roots, Triticum.
- physiology : Cell Membrane, Photosynthesis, Triticum.
- prevention & control : Dehydration.
- radiation effects : Cell Membrane, Germination, Photosynthesis, Plant Leaves, Plant Roots, Seeds, Triticum.
- Gamma Rays.
Abstract
The effects on morphological and physiological characters of durum wheat (Triticum durum Desf.) plants issued from seeds upon irradiation with low doses of cobalt gamma rays (i.e., 0, 10, 20 and 30 Gy), were studied. The study is carried out in the Experimental Research Station of Ecole Supérieure d'Agriculture du Kef (North West Tunisia) in 2008/2009. In Petri dishes, the 20 Gy dose caused an increase of the speed and Germination Capacity (GC) of the seeds as compared to non irradiated ones. Plants from these treated seeds maintained on Knops' culture medium (culture medium used to study plant growth in test tubes), improved root system in terms of length, volume and weight when compared to the plants issued from the non treated seeds. This irradiation dose (20 Gy) also improved in a significant way the above ground system growth of the plants. Under glass house conditions with a water stress, the plants issued from seeds treated with 20 Gy, had higher water content and membrane stability as compared of those from the non irradiated ones. Furthermore, seed irradiation with this dose had a positive effect on the chlorophyll content and maximum quantum yield of the irradiated plants. These results suggest that ionizing irradiation may be considered as an alternative in improving root growth of the plant and therefore controlling drought.
PubMed: 20180332
Affiliations:
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Le document en format XML
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Melki</name><affiliation wicri:level="1"><nlm:affiliation>Ecole Supérieure d'Agriculture du Kef, 7119, Tunisie.</nlm:affiliation><country xml:lang="fr">Tunisie</country><wicri:regionArea>Ecole Supérieure d'Agriculture du Kef, 7119</wicri:regionArea><wicri:noRegion>7119</wicri:noRegion></affiliation></author><author><name sortKey="Dahmani, Th" sort="Dahmani, Th" uniqKey="Dahmani T" first="Th" last="Dahmani">Th Dahmani</name></author></analytic><series><title level="j">Pakistan journal of biological sciences : PJBS</title><idno type="ISSN">1028-8880</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cell Membrane (physiology)</term><term>Cell Membrane (radiation effects)</term><term>Chlorophyll (analysis)</term><term>Chlorophyll (metabolism)</term><term>Dehydration (prevention & control)</term><term>Gamma Rays</term><term>Germination (radiation effects)</term><term>Photosynthesis (physiology)</term><term>Photosynthesis (radiation effects)</term><term>Plant Leaves (chemistry)</term><term>Plant Leaves (radiation effects)</term><term>Plant Roots (anatomy & histology)</term><term>Plant Roots (chemistry)</term><term>Plant Roots (radiation effects)</term><term>Seeds (radiation effects)</term><term>Triticum (anatomy & histology)</term><term>Triticum (chemistry)</term><term>Triticum (physiology)</term><term>Triticum (radiation effects)</term><term>Water (analysis)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Chlorophylle (analyse)</term><term>Chlorophylle (métabolisme)</term><term>Déshydratation ()</term><term>Eau (analyse)</term><term>Feuilles de plante ()</term><term>Feuilles de plante (effets des radiations)</term><term>Germination (effets des radiations)</term><term>Graines (effets des radiations)</term><term>Membrane cellulaire (effets des radiations)</term><term>Membrane cellulaire (physiologie)</term><term>Photosynthèse (effets des radiations)</term><term>Photosynthèse (physiologie)</term><term>Racines de plante ()</term><term>Racines de plante (anatomie et histologie)</term><term>Racines de plante (effets des radiations)</term><term>Rayons gamma</term><term>Triticum ()</term><term>Triticum (anatomie et histologie)</term><term>Triticum (effets des radiations)</term><term>Triticum (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Chlorophyll</term><term>Water</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Chlorophyll</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Chlorophylle</term><term>Eau</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Racines de plante</term><term>Triticum</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Plant Roots</term><term>Triticum</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Plant Leaves</term><term>Plant Roots</term><term>Triticum</term></keywords><keywords scheme="MESH" qualifier="effets des radiations" xml:lang="fr"><term>Feuilles de plante</term><term>Germination</term><term>Graines</term><term>Membrane cellulaire</term><term>Photosynthèse</term><term>Racines de plante</term><term>Triticum</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Chlorophylle</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Membrane cellulaire</term><term>Photosynthèse</term><term>Triticum</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Cell Membrane</term><term>Photosynthesis</term><term>Triticum</term></keywords><keywords scheme="MESH" qualifier="prevention & control" xml:lang="en"><term>Dehydration</term></keywords><keywords scheme="MESH" qualifier="radiation effects" xml:lang="en"><term>Cell Membrane</term><term>Germination</term><term>Photosynthesis</term><term>Plant Leaves</term><term>Plant Roots</term><term>Seeds</term><term>Triticum</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Gamma Rays</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Déshydratation</term><term>Feuilles de plante</term><term>Racines de plante</term><term>Rayons gamma</term><term>Triticum</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effects on morphological and physiological characters of durum wheat (Triticum durum Desf.) plants issued from seeds upon irradiation with low doses of cobalt gamma rays (i.e., 0, 10, 20 and 30 Gy), were studied. The study is carried out in the Experimental Research Station of Ecole Supérieure d'Agriculture du Kef (North West Tunisia) in 2008/2009. In Petri dishes, the 20 Gy dose caused an increase of the speed and Germination Capacity (GC) of the seeds as compared to non irradiated ones. Plants from these treated seeds maintained on Knops' culture medium (culture medium used to study plant growth in test tubes), improved root system in terms of length, volume and weight when compared to the plants issued from the non treated seeds. This irradiation dose (20 Gy) also improved in a significant way the above ground system growth of the plants. Under glass house conditions with a water stress, the plants issued from seeds treated with 20 Gy, had higher water content and membrane stability as compared of those from the non irradiated ones. Furthermore, seed irradiation with this dose had a positive effect on the chlorophyll content and maximum quantum yield of the irradiated plants. These results suggest that ionizing irradiation may be considered as an alternative in improving root growth of the plant and therefore controlling drought.</div></front></TEI><affiliations><list><country><li>Tunisie</li></country></list><tree><noCountry><name sortKey="Dahmani, Th" sort="Dahmani, Th" uniqKey="Dahmani T" first="Th" last="Dahmani">Th Dahmani</name></noCountry><country name="Tunisie"><noRegion><name sortKey="Melki, M" sort="Melki, M" uniqKey="Melki M" first="M" last="Melki">M. Melki</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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