| Titre : |
Etude biométrique et histologique sur des larves de Culex pipiens Linnée, 1758 (Diptera, Culicidae) Exposées aux extraits aqueux de plantes. |
| Type de document : |
texte imprimé |
| Auteurs : |
Sarra Zerroug, Auteur ; Selima Berchi, Directeur de thèse |
| Editeur : |
جامعة الإخوة منتوري قسنطينة |
| Année de publication : |
2018 |
| Importance : |
143 f. |
| Format : |
30 cm. |
| Note générale : |
2 copies imprimées disponibles
|
| Langues : |
Français (fre) |
| Catégories : |
Français - Anglais
Biologie
|
| Tags : |
Culex pipiens méthanolic extracts larvicidal effect DL50 histology midgut extraits méthanoliques effet larvicide histologie tube digestif morphométrie مستخلصات مائية تأثيرالسمية LD50الأنسجة الجهازالهضمي بيومتري-Culex pipiens |
| Index. décimale : |
570 Sciences de la vie. Biologie |
| Résumé : |
Third and fourth instar larvaes of Culex pipiens L. mosquitos have been exposed, in laboratory conditions, to aqueous extracts from eight plants in different concentrations in order to evaluate their larvicidal effect.
The results indicate variable sensibility levels of larvaes, which are relatively higher when extract concentration is raised. However, the toxicity is well observed when the larvaes are exposed for extended periods of time. Of all the extracts tested, Eucalyptus and Oleander seem to be more efficient in the fight against these mosquitos.
As for intestinal study, we have determined the several histological modes of action of toxic elements of extracts on the intestinal tissue of the treated larvaes.
Effectively, the microscopique observations on the treated larvaes on time intervals of 2h, 6h, 12h, 24h, reveal radical modifications as time goes. Such as, after 24h the cells explode and the cytoplasmic content passes through the intestinal lumen, which lead to death.
Different morphometric parameters have been considered, such as: length and width of wings, length and width of the abdomen, length of antennas, femur, tibia and the 5 tarses of adult Culex pipiens that were treated with plant extracts.
Data analysis shows that aqueous extracts of plants induce some differences in comparison to the control`s parameters.
|
| Diplôme : |
Doctorat |
| En ligne : |
../theses/biologie/ZER7307.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=10922 |
Etude biométrique et histologique sur des larves de Culex pipiens Linnée, 1758 (Diptera, Culicidae) Exposées aux extraits aqueux de plantes. [texte imprimé] / Sarra Zerroug, Auteur ; Selima Berchi, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 143 f. ; 30 cm. 2 copies imprimées disponibles
Langues : Français ( fre)
| Catégories : |
Français - Anglais
Biologie
|
| Tags : |
Culex pipiens méthanolic extracts larvicidal effect DL50 histology midgut extraits méthanoliques effet larvicide histologie tube digestif morphométrie مستخلصات مائية تأثيرالسمية LD50الأنسجة الجهازالهضمي بيومتري-Culex pipiens |
| Index. décimale : |
570 Sciences de la vie. Biologie |
| Résumé : |
Third and fourth instar larvaes of Culex pipiens L. mosquitos have been exposed, in laboratory conditions, to aqueous extracts from eight plants in different concentrations in order to evaluate their larvicidal effect.
The results indicate variable sensibility levels of larvaes, which are relatively higher when extract concentration is raised. However, the toxicity is well observed when the larvaes are exposed for extended periods of time. Of all the extracts tested, Eucalyptus and Oleander seem to be more efficient in the fight against these mosquitos.
As for intestinal study, we have determined the several histological modes of action of toxic elements of extracts on the intestinal tissue of the treated larvaes.
Effectively, the microscopique observations on the treated larvaes on time intervals of 2h, 6h, 12h, 24h, reveal radical modifications as time goes. Such as, after 24h the cells explode and the cytoplasmic content passes through the intestinal lumen, which lead to death.
Different morphometric parameters have been considered, such as: length and width of wings, length and width of the abdomen, length of antennas, femur, tibia and the 5 tarses of adult Culex pipiens that were treated with plant extracts.
Data analysis shows that aqueous extracts of plants induce some differences in comparison to the control`s parameters.
|
| Diplôme : |
Doctorat |
| En ligne : |
../theses/biologie/ZER7307.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=10922 |
|
Etude biométrique et histologique sur des larves de Culex pipiens Linnée, 1758 (Diptera, Culicidae) Exposées aux extraits aqueux de plantes.
