Exploration of Bacteriophage Virulent to Xanthomonas campestris pv. Campestris Isolated from Tawangmangu for Controlling Cabbage Black Rot Disease

Oleh : Sri Widadi, Supyani, Sumijati and Yulia Rahmawati

Kategori : Journal Agronomy Research

Volume :  Vol 1 No 1: 15-19, Oktober 2012

Abstract :

The aims of this study are to explore and learn bacteriophage ability to control black rot disease of cabbage. This study was conducted in March through July 2012. The research was conducted in two phases: (1) bacteriophage isolation by plaque assay, (2) testing bacteriophage to control black rot of cabbage in the field. The results showed that bacteriophage can be isolated from various sources that  cabbage leaves, diseased cabbage root, and diseased cabbage soil. The amount of bacteriophage (based on plaque assay) at most of the diseased cabbage root. For the observation incidence and severity, control treatments is highest the incidence and severity of disease than other treatments (with application bacteriophage). Because without the bacteriophage, Xanthomonas campestris pv. campestris can replicate and cause symptoms of black rot of cabbage. This indicates that application bacteriophage able to suppress the attack of black rot disease of cabbage.

Keywords: bacteriophage, black rot, cabbage, Xanthomonas campestris pv. campestris, Tawangmangu