Applied Biology in Saharan Areas
Volume 3, Numéro 4, Pages 54-62
2021-12-31
Antimicrobial And Enzymatic Activities Of Endophytic Fungi Isolated From Phoenix Dactylifera L. In The Region Of Bechar (algeria)
Authors : Derkaoui Souheyr . Zeraoula Safinez .
Abstract
The present study was performed to assess the antimicrobial and the enzymatic potential of endophytic fungi associated with date palm (Phoenix dactylifera L). Eighteen fungal isolates were isolated from the roots of seven young seedlings, of which only two of them (P3.4; P6.2) were subjected to tests for biological activities. Testing for antimicrobial activity by the agar cylinder technique showed that the endophyte (P 3.4) had no antimicrobial activity and the endophyte (P6,2) has activity against Acinetobacter baumannii and Pseudomonas aeruginosa. Testing for antimicrobial substances in the crude supernatant of cultures of endophytic isolates indicated that isolate P3.4 had activity only against E. coli and Acinetobacter baumannii Activity against E. coli is exerted by P6,2. Testing for antimicrobial substances in extracts of crude supernatants from cultures of endophytic isolates indicated that almost all extracts from both isolates inhibited E. coli and Acinetobacter baumannii. It should be noted that these endophytes produce amylase, protease and are not endowed with esterase, lipolytic and cellulolytic activity.
Keywords
Phoenix dactylifera L; Endophytic fungi; Antimicrobial potential; Enzymatic potential.
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