Abstract
In this study, phages active against S. marcescens, causative agent of onion decay, were isolated from plant material. One virus isolate was shown to accumulate in high titers and was denoted as phage S. This bacteriophage exhibited a hexagonal head and tail and was attributed to Myoviridae family. It was shown the ability of bacteriophage S to suppress the development of bacteriosis on geranium plants. Investigated virus isolate also inhibited rooting of onion scales. This work focused on a biological control approach to use bacteriophages for reducing bacterial pathogen populations and disease severity on plants.
Highlights
Plant pathogenic bacteria cause many serious plant diseases throughout the world stimulating intensive research of their ecology, pathology and epidemiology
The last researches, prove that these human pathogenic bacterial species have ability to colonize a wide spectrum of plants and cause the disease development
The ability of bacteriophages to suppress the development of bacteriosis was investigated on geranium plants
Summary
Plant pathogenic bacteria cause many serious plant diseases throughout the world stimulating intensive research of their ecology, pathology and epidemiology. The last researches, prove that these human pathogenic bacterial species have ability to colonize a wide spectrum of plants and cause the disease development. For the instance Serratia marcescens, common soil bacteria, was described as causative agent of soft rot of onion [6]. Bacteriophages, bacterial viruses, are widely present in the environment, wherever the host bacterium is expected to be found. Some bacteriophages are potentially useful agents in the control of plant pathogens. Our purpose was to search bacteriophages, specific to S. marcescens and to verify their activity against this bacterium on the plants of onion and pelargonium
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