Mycoflora associated with dry dates in upper egypt ii. Osmophilic fungi and test of osmophilic ability

Abstract

19 fungal species which belong to 8 genera were collected from 30 dry date samples of which 9 species appeared on all sucrose concentrations (20%, 40% and 60%) namely, Aspergillus amstelodami, A. niger, A. raber, A. sydowii, Penicillium chevalierii, p. brevi-compactum, Humicola grisea, AItemaria altervata and Rhizopus stolonifer. When 17 species of the collected fungi were tested for their osmophilic abilities, they were classified into 4 groups: a) Highly osmophilic: A. niger, A. ruber and A. amstelodami. b) Fairly osmophilic: A. flavus, P. funiculosum and F. oxysoporum. c) Weakly osmophilic: A. terreus, P. dtnnum, F. so/am and Paedlomyces variotii. d) Osmotolarent: F. moniliforme, F. equiseti, Ulocladium botrytis, Rhizopus stolonifer, Chaetomium globosum, Altemaria alternata and Drechslera biseptata.