Abstract:
The constant evolution of the bacterial resistance in antibiotics and the emergence of new
infectious diseases justify the urgency to arrange new antimicrobial molecules. In this study we tested
the antimicrobial activity of actinomycetes isolated form asoil of plant
Daucus sahariensisbreM , appropriated of the region Boussaada à M’sila, arid zone to semi-arid
situated in the north-east of Algeria,The antimicrobial activity was estimated by the technique of stries
croisées against feve bacteria Bacillus subtilis ATCC 6633, Kelbseuillapheumoniae ATCC
532,Enterococusfaccalis ATCC 2035, E. coli ATCC 25922, Staphylococcus aureus and filamentous
fungi phytophtora (phytopathogenic), and Candida albicans ATCC10231 yeast. The three
actinobacter MSBA1, MSBA2 and MSBA5 isolate have shown activity against at for tests
bacteria.The larger zones of inhibition were observed with MSBA5 possess a strong activity against at
least one of the microorganisms-tests. These isolates can be a potential agent producing of many
bioactive molecules, in particular the antibiotics of interest biotechnology and pharmacology
