Mohamed Ramadan Farag Abdelfadil <br/><br/>
Development of efficient techniques suitable for growth and survival of plant microbiome/  
 تطوير تقنيات اكثر كفاءة لتنمية وحفظ الميكروبات المصاحبة للنبات 
Mohamed Ramadan Farag Abdelfadil ; Supervised Nabil Abrahim Hegazi , Mohamed Fayez Fouad 
 - Cairo :   Mohamed Ramadan Farag Abdelfadil ,   2020 
 - 59 P. :   charts , facsmilies ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Microbiology 
<br/><br/> Long-term preservation of microorganisms is one of the top research priorities in life science. Microbial community structure is altering and going to disappear. Therefore, community level preservation should be taken into consideration in diversity conservation agenda. Therefore, we introduce the local type of clay used for pottery making in Egypt, as available, inexpensive and natural material for microbial preservation of either pure isolates or consortia of microorganisms. Beads of pottery clay were tested for long-term preservation of the rhizobacteria; Bacillus circulans, Klebsiella oxytoca, Sinorhizobium meliloti, and yeast isolate under different storage temperatures, ambient, 4 and -20. The general survival patterns of examined microorganisms indicated successful maintenance on clay beads up to 11 months with very little reductions in their numbers, a phenomenon that was strain-and culture medium-dependent 
<br/><br/>
<br/><br/><label>Subjects--Index Terms: </label>Clay beads  Microbial community  Microbial Preservation