Biomaterial Database

Effect of volatile substances from Origanum majorana and Ocimum basilicum on spore respiration and germination of some soil fungi. 1978

A F Afifi, and A E Dowidar

Oxygen uptake by the spores of Fusarium moniliforme, F. oxysporum, F. semitectum, F. solani, Mucor racemosus and Trichoderma viride was increased in the presence of volatile substances extracted from Origanum majorana and Ocimum basilicum. This increase was greater in the presence of volatile substances from O. basilicum than O. majorana, except in the case of F. semitectum where the reverse was true. A drop in the RQ of all the germinating spores was observed in the presence of these substances. Volatile substances from O. majorana reduced the spore germination of M. racemosus whereas the spores of T. viride were stimulated to germinate. Volatile substances from O. basilicum stimulated the spore germination of M. racemosus whereas T. viride spores were not affected.

UI	MeSH Term	Description	Entries
D009089	Mucor	A genus of zygomycetous fungi of the family Mucoraceae, order Mucorales. It is primarily saprophytic, but may cause MUCORMYCOSIS in man from spores germinating in the lungs.	Mucors
D009822	Oils, Volatile	Oils which evaporate readily. The volatile oils occur in aromatic plants, to which they give odor and other characteristics. Most volatile oils consist of a mixture of two or more TERPENES or of a mixture of an eleoptene (the more volatile constituent of a volatile oil) with a stearopten (the more solid constituent). The synonym essential oils refers to the essence of a plant, as its perfume or scent, and not to its indispensability.	Essential Oil,Oil, Essential,Oil, Volatile,Oils, Essential,Volatile Oil,Essential Oils,Volatile Oils
D010101	Oxygen Consumption	The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)	Consumption, Oxygen,Consumptions, Oxygen,Oxygen Consumptions
D010936	Plant Extracts	Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.	Herbal Medicines,Plant Extract,Extract, Plant,Extracts, Plant,Medicines, Herbal
D003904	Mitosporic Fungi	A large and heterogenous group of fungi whose common characteristic is the absence of a sexual state. Many of the pathogenic fungi in humans belong to this group.	Deuteromycetes,Deuteromycota,Fungi imperfecti,Fungi, Mitosporic,Hyphomycetes,Deuteromycete,Deuteromycotas,Fungi imperfectus,Fungus, Mitosporic,Hyphomycete,Mitosporic Fungus,imperfectus, Fungi
D005670	Fusarium	A mitosporic Hypocreales fungal genus, various species of which are important parasitic pathogens of plants and a variety of vertebrates. Teleomorphs include GIBBERELLA.	Fusariums
D012987	Soil	The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.	Peat,Humus,Soils
D013172	Spores, Fungal	Reproductive bodies produced by fungi.	Conidia,Fungal Spores,Conidium,Fungal Spore,Spore, Fungal
D014242	Trichoderma	A mitosporic fungal genus frequently found in soil and on wood. It is sometimes used for controlling pathogenic fungi. Its teleomorph is HYPOCREA.	Trichodermas