title: The antagonism activity of bacteria isolated from potato cultivated soil.
abstract: Soil-borne fungal and bacterial root pathogens can cause serious losses to agricultural crops. Resistant plant varieties are not available for several soil-borne pathogens and chemical control is often insufficiently effective in soil. The enhancement of disease suppressive properties of soils will limit disease development, thus, being of great importance for sustainable agriculture as well as organic farming systems. The aim of this research is to find and identify suppressive soils in the Sétif's areas (potato field located in different regions of Sétif); this allows the selection of the indigenous soil bacteria that are able to develop several mechanisms of action related to biocontrol of phytopathogenic fungi affecting potato crops. Among 50 bacterial strains only 14 showed a wide range of antifungal action against the tested phytopathogenic fungi. With a range of inhibition percent from 0 to 92.30% especially Fusarium oxysporum f. sp. albedinis with 92% inhibition.
authors.affiliation: Laboratory of Applied Microbiology, Faculty of Natural and Life Sciences, University Ferhat Abbas of Sétif, 19000 Sétif, Algeria. mezaic2002@yahoo.fr
authors.forename: S
authors.initials: S
authors.lastname: Mezaache-Aichour
authors.forename: N
authors.initials: N
authors.lastname: Sayah
authors.forename: M M
authors.initials: MM
authors.lastname: Zerroug
authors.forename: A
authors.initials: A
authors.lastname: Guechi
mesh_terms: D000462:Algeria; D001419:Bacteria / Q000145:classification*; D005658:Fungi / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D010572:Pest Control, Biological; D012987:Soil / Q000737:chemistry; D012988:Soil Microbiology; D011198:Solanum tuberosum / Q000382:microbiology*
chemical_list: D012987:Soil