บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effect of antimicrobial compounds on the number of bacteria in stems of cut rose flowers.

Doorn, W. G. van; Witte, Y. de; Perik, R. R. J.;

Journal of Applied Bacteriology Year: 1990 Vol: 68 Issue: 2 Pages: 117-122 Ref: 17 ref.

1990

บทคัดย่อ

Effect of antimicrobial compounds on the number of bacteria in stems of cut rose flowers.

The presence of chlorine in solution (bleach), a slow release chlorine (DICA), a quaternary ammonium compound (benzalkonium chloride), a hydroxyquinoline compound (HQC) or aluminium sulfate in the vase water decreased the number of bacteria in stems of cut Sonia roses, with respect to untreated controls. However, when the concn of the antimicrobial compound was high enough to reduce the number of bacteria in stems (measured after 7 d of vase life) to below the detection limit, the roses showed severe leaf chlorosis and leaf abscission. Benzalkonium chloride resulted in damage at a concn just high enough to reduce the number of bacteria in stems. Effects of HQC, aluminium sulfate and silver nitrate on the number of bacteria were variable. In experiments in which HQC was relatively ineffective, only 1 bacterial str. was found in the stem. This str. grew on HQC concn as high as 400 mg/litre, and was identified as Pseudomonas fluorescens.