Iman Ibrahim^*(1) ,Najwa Muslmani ⁽¹⁾,Imad aldeen ALKhalaf⁽¹⁾ ,and Abeer alramo ⁽¹⁾

(1) Dept. of Biology, Faculty of Science, Aleppo University, Aleppo, Syria.
(*Corresponding author: Iman Ibrahim, E-Mail iman.sy@hotmail.com).

Received: 5/02/2021            Accepted: 27/09/2021

Abstract:

Bio fertilization is one of the ways to enhance plant growth traits. The aim of this research is to isolate and characterize bacteria from the rhizosphere of the celery plants and study some of their growth-promoting properties The bacteria were isolated and were identified based on morphological and biochemical tests. the results showed that 45 bacterial isolates from the rhizosphere of celery were described. And All the bacterial isolates possess growth-promoting properties in varying proportions, as (96) % of them were able to fix nitrogen and (51) % dissolve for While the isolates produced the hormone indole acetic acid by (46%) and iron Siderophores produced by (75%), and (49%) were able to produce hydrogen cyanide. Later, then, the isolates with the most growth-promoting properties were identified, most of these isolates belonged to the genus Bacillus and Pseudomonas. The results in this research indicate the possibility of using these isolates in agricultural practices as bio-fertilizers to encourage the growth of different crops, after being tested on agricultural crops.
Keywords: Celery, bacterial inoculum, growth- promoting bacteria, isolation, characterization.

Full paper in Arabic: pdf