Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Groundnut bud necrosis virus infecting anthurium (Anthurium andreanum) in India.

Abstract

In 2016, anthurium (Anthurium andreanum) grown in greenhouses on the RHREC campus, GKVK Bengaluru, Karnataka, India, showed various types of disease symptoms with an initial incidence of approximately 25%. In 2018, the disease incidence had increased to 80% along with heavy infestations of thrips. Plants showed chlorotic and necrotic lesions on spathes and leaves, and malformation of spathes and necrotic streaks on flower stalks. These symptoms were observed on anthurium cultivars Acropolish, Cheers, Fire, Tropical and Xavia. The symptoms resembled those caused by Tomato spotted wilt virus (TSWV) on anthurium reported from Hawaii, USA. Based on the results of DAC-ELISA, RT-PCR and phylogenetic analyses, the causal agent was identified as Groundnut bud necrosis virus (GBNV). The occurrence of members of the genus Orthotospovirus, such as TSWV and Impatiens necrotic spot virus, which are transmitted by several species of thrips, on anthurium has been reported from different parts of the world. In India, GBNV is the most widely distributed member of the genus Orthotospovirus and infects a wide variety of plant species. However, this is thought to be the first report of anthurium as a new host for GBNV, not only in India but also worldwide.