บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Colonisation and competitiveness of Aspergillus and Penicillium species on maize grain in the presence of Fusarium moniliforme and Fusarium proliferatum.

Marin, S.; Sanchis, V.; Arnau, F.; Ramos, A. J.; Magan, N.;

International Journal of Food Microbiology Year: 1998 Vol: 45 Issue: 2 Pages: 107-117 Ref: 25 ref.

1998

บทคัดย่อ

Colonisation and competitiveness of Aspergillus and Penicillium species on maize grain in the presence of Fusarium moniliforme and Fusarium proliferatum.\

The effects of different steady-state water activity levels (aw, 0.93, 0.95 and 0.98) and temperature (15 and 25 deg C) on colonization patterns of Aspergillus and Penicillium spp., when colonizing irradiated maize grain in the presence of F. moniliforme [Gibberella fujikuroi] and F. proliferatum were assayed in terms of populations (c.f.u.s/g grain), seed infection and colonization rates. The activity of G. fujikuroi and F. proliferatum in grain reduced the presence of Aspergillus flavus, A. niger, A. ochraceus to some extent, particularly at 15 deg C and higher water availabilities (0.95-0.98 aw). In contrast, colonization patterns of Penicillium implicatum on maize grain were unaffected by either Fusarium spp. in terms of c.f.u.s or seed infection. Correlations were made between c.f.u.s, seed infection, growth rates and niche overlap indices and hyphal interactions to try and link key indicators of competitiveness and dominance by an individual species.