Effect of natural surface secretes of some common ornamental plants leaves on pathogenic micro-organisms

الملخص EN

This study presents the antimicrobial effect of natural surface secretes of some common ornamental plants leaves (Ficus elastica, Philodendrom bipinnatifidum and Aglonema) on some pathogenic bacteria (Escherichia coli, P.

aeruginosa and Staph.

Aureus), and fungi (Microsporum gypseum and Aspergillus flavus).

It is concluded that all tested washing water of the plants leaves secretes exhibited various inhibitory effects, both Philodendrom bipinnatifidum and Aglonema commutatum have exhibited more antibacterial activity than Ficus elastica.

While both E.

coli and P.

aeruginosa are more sensitive than Staph.

aureus.

The same inhibitory effects are observed when the plants leaves inoculated in their surface with pathogenic bacteria.

In contrast to bacterial inhibitory effects, the washing water of natural surface secretes of tested ornamental plants leaves induced mycelium growth of both tested fungi.

Microsporum gypseum mycelium growth induced more than Aspergillus flavus especially in case of the washing water of Ficus elastic that has the highest effects at 7.5/500 mL of medium.

This study concludes that the uses of ornamental plants for the indoors and outdoors to control the growth of pathogenic microbes and problems associated with hospital.