Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Ageratum enation virus, betasatellite and alphasatellite causing leaf curl and enation disease of Amaranthus hypochondriacus in India.

Abstract

During a survey in February 2011, severe symptoms of upward leaf curling, vein enation on lower side of the leaves and shortening of internodes were observed on 20 out of 117 Amaranthus hypochondriacus plants (17% disease incidence) in Lucknow, Uttar Pradesh, India. The causal pathogen was identified as Ageratum enation virus (AEV) together with its betasatellite and alphasatellite based on genetic (PCR) and pathogenicity analyses. This is thought to be the first report of AEV betasatellite and alphasatellite causing leaf curl and enation disease of A. hypochondriacus in India.