المستودع الرقمي في جامعة غرداية

Contribution à l'étude des Bacillales halophiles d'un échantillon de Hammam Zelfana (Ghardaia)

عرض سجل المادة البسيط

dc.contributor.author BEDJADJ, Safaa
dc.contributor.author BENMASSAOUD, Chahinez
dc.date.accessioned 2023-03-20T07:35:22Z
dc.date.available 2023-03-20T07:35:22Z
dc.date.issued 2020
dc.identifier.uri https://dspace.univ-ghardaia.edu.dz/xmlui/handle/123456789/5733
dc.description.abstract The study of extremophilic bacterial species opens up gates of research to understanding the mechanisms of adaptation and developmental growth under unfavorable conditions. Depending on the extreme conditions, the microorganisms can be: thermophiles, halophiles, psychrophiles, acidophiles, alkaliphiles or piezophiles. The main objective assigned to this work is to isolate extremophilic spore-forming bacteria from soil samples from the region of Zelfana. After heat treatment in a water bath for 20 minutes at 100 ° C to eliminate the vegetative forms, the isolation of the strains was carried out from a nutrient agar medium in the presence of 15% NaCl for 20 days of incubation. After the morphological identification of a selected strain (F1) which is capable of forming endospores, and Gram positive, and has a rod shape. Physiological identification of the isolate shows that it is tolerant to the following NaCl concentrations: [0, 0, 5.1, 1, 5.2, 2.5% (w / v)]. The results of this study show that the isolated strain belonging to the order of Bacillales. EN_en
dc.language.iso fr EN_en
dc.publisher Faculté Science de la Nature et de la Vie et Sciences de la Terre - Université de Ghardaïa EN_en
dc.subject extremophilic bacterial species, sporogens, isolation, halophiles, identification, Bacillales. EN_en
dc.subject les bactériennes extrêmophiles, sporogènes, isolement, halophiles, identification, Bacillales. EN_en
dc.subject بكتيرية متحمّلة للظروف القاسية ،أبواغ، عزل، محبة للملوحة، تعريف تصنيفي ،. Bacillales EN_en
dc.title Contribution à l'étude des Bacillales halophiles d'un échantillon de Hammam Zelfana (Ghardaia) EN_en


الملفات في هذه المادة

هذه المادة تظهر في الحاويات التالية

عرض سجل المادة البسيط

بحث دي سبيس


بحث متقدم

استعرض

حسابي