title: Antifungal activity of rhizospheric bacteria.
abstract: Fluorescent Pseudomonad spp. were isolated from the rhizosphere of potato plants (Algeria) by serial dilutions of rhizosphere soils on Kings B medium and were tested for their antifungal activity. The antifungal activity of the Pseudomonas isolated from Potatoes rhizosphere was tested against Pythium ultimum, Rhizoctonia solani and Fusarium oxysporum in dual culture with bacteria on PDA. The Petri dish was divided into tow, on one the bacteria was spread and on the opposite side fungal plugs were inoculated and incubated for one week. Fourteen bacteria were isolated; only one isolate inhibited the growth of Pythium ultimum, Rhizoctonia solani, Fusarium solani; Fusarium oxysporum f.sp. albedinis and Fusarium oxysporum f. sp. Lycopersici with inhibition zones of 39.9, 33.7, 30.8, 19.9 and 22.5 mm respectively.
authors.affiliation: University of Sétif, Faculty of Sciences, Dept. Biology, Laboratory of Applied Microbiology, 19000 Sétif, Algeria. mezaic2002@yahoo.fr
authors.forename: S
authors.initials: S
authors.lastname: Mezaache
authors.forename: A
authors.initials: A
authors.lastname: Guechi
authors.forename: M M
authors.initials: MM
authors.lastname: Zerroug
authors.forename: R N
authors.initials: RN
authors.lastname: Strange
authors.forename: J
authors.initials: J
authors.lastname: Nicklin
mesh_terms: D000935:Antifungal Agents / Q000378:metabolism / Q000494:pharmacology*; D001419:Bacteria / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism*; D005658:Fungi / Q000187:drug effects* / Q000502:physiology; D010935:Plant Diseases / Q000382:microbiology*; D058441:Rhizosphere; D012988:Soil Microbiology; D011198:Solanum tuberosum / Q000382:microbiology*
chemical_list: D000935:Antifungal Agents