عنوان المقالة:بكتريا رايزوسفير أشجار زيتون منطقة الجوف: التعداد ، التنوع الظاهري وغربلة الأميليز AL-JOUF REGION OLIVE TREES RHIZOSPHERIC BACTERIA: ENUMERATION, PHENOTYPIC DIVERSITY, AND AMYLASE SCREENING
بن عمر شبة | benamar cheba | 15348
نوع النشر
مقال علمي
المؤلفون بالعربي
بن عمر شبة
المؤلفون بالإنجليزي
Ben amar Cheba
الملخص الانجليزي
This preliminary bacteriological study of some Al-Jouf region olive trees rhizospheres aimed to investigate their phenotypic bacterial diversity and amylase productivity. The results of olive cultivar age effect on total rhizospheric bacteria were very low in seedlings compared to the adult threes, and generally variable according to the following descending order Barri > Sorani > Romani > Russaei. Concerning olive cultivars genotype effect on total rhizospheric bacteria, the results revealed on variable total rhizospheric bacteria associated with investigated cultivars, according to the following descending order Barri (68.4 %) > Picual (23.5%) > Arbosana (7 %) > Chetoui (1%), whereas the results of olive rhizospheric bacteria phenotypic diversity were variable according to the following descending order Arbosana > Chetoui > Picual >Barri. The phenotypic diversity was characterized by variations in colonies color, size, form, elevation, edges, and texture, with the dominance of pinpoint and red colonies in Arbosana and Picual cultivars respectively, whereas Chetoui cultivar distinguished with brown pigment diffusing colonies, which may be indicated siderophores secretion. In addition, amylase screening results showed the superiority of Chemchali and Chetoui cultivars as efficient sources for amylase-producing bacteria which can be exploited for further biotechnological applications.
تاريخ النشر
05/05/2022
الناشر
World Journal of Pharmaceutical and Life SciencesWJPLS
رقم المجلد
8
رقم العدد
5
الصفحات
181-186
رابط الملف
تحميل (0 مرات التحميل)
الكلمات المفتاحية
Olea. europaea; Rhizosphere; Bacteria; Enumeration; Phenotypic Diversity; Amylase Screening
رجوع