Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

A new bacterial blight of pomegranate caused by Pseudomonas sp. in Maharashtra, India.

Abstract

In the past few decades, pomegranate production in India has greatly suffered from a highly catastrophic bacterial blight disease caused by Xanthomonas axonopodis pv. punicae. Various management strategies have failed to control the disease. During surveys carried out in Maharashtra, India in 2010-2015, an unusual yellow pigmented bacterium was consistently associated with pomegranate showing blight symptoms. Based on morphological, biochemical, 16S rRNA and gyrase B gene sequencing, the bacterium was identified as Pseudomonas sp. Pathogenicity was assessed both by a detached leaf assay method (in vitro) and in pomegranate plantlets (in vivo). To the best of our knowledge, we report Pseudomonas sp. as a cause of new bacterial blight disease of pomegranate in Maharashtra, India in addition to Xanthomonas axonopodis pv. punicae.