The effects of osmotic and matric water potential on mycelial growth, production and germination of conidia, and production and maturation of pseudothecia of Pyrenophora triticirepentis (PTR), the cause of tan spot of wheat, were examined on clarified V8 juice agar amended with KCl or polyethylene glycol 8000 (PEG8000). Patterns of the growth responses of three isolates to decreasing osmotic an...

This study was performed to investigate the inhibitory effect of green onion produced in Korea on the growth of A. parasiticus, a toxigenic strain. The effect was studied using different concentrations of freeze-dried green onion in solid culture with potato-dextrose agar (PDA) or in liquid culture with yeast-extract sucrose (YES) broth at 25°C for 15 days. The addition of green onion to the me...

The effects of selected metals (Mg, Mn, Zn, and Fe) on 3-acetyldeoxynivalenol (3-ADN) production by Fusarium graminearum R2118 and on its mycelial growth were investigated by using a two-stage submerged-culture technique. In certain concentrations ranges, Mg and Fe stimulated growth but suppressed 3-ADN production; at other concentrations, Mg, Fe, and Zn suppressed growth but stimulated 3-ADN p...

Suárez-Jiménez, G.M., Cortez-Rocha, M.O., Rosas-Burgos, E.C., Burgos-Hernández, A., Plascencia-Jatomea, M., and Cinco-Moroyoqui, F.J. 2007. Antifungal activity of plant methanolic extracts against Fusarium verticillioides (Sacc.) Nirenb. and fumonisin B1 production. Revista Mexicana de Fitopatología 25:134-142. Abstract. The aim of this work was to determine the inhibitory effect of methanolic ...

Laboratory studies were carried out to isolate, identify and control the fungi associated with fruit rot of tomato (Lycopersicon esculentum). Aspergillus viridae, Penicillium digitatum and Rhizopus sp were isolated from samples collected from Lokoja, Kabba, Okene, Anyigba and Ankpa, all in Kogi State, Nigeria. Plant extracts employed to control the vegetative mycelial growth were from neem (Aza...