Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Curvularia alcornii as a plant pathogen causing post-harvest rot of tomatoes.

Abstract

In March 2021, an outbreak of post-harvest rot of tomatoes was observed in fruit collected from the research field of Bidhan Chandra Krishi Viswavidyalaya University campus, West Bengal, India. Approximately 5% of the fruits (cv. Rupali) showed symptoms following 6 days of storage at room conditions. Initially, 0.2-0.5 cm round, water-soaked, light brown lesions were observed which gradually increased in radius up to 1-1.5 cm. From the lesions a dark brown to black fungal mass erupted extending up to 2-3 mm from the surface of the fruit. The causal organism was isolated from diseased fruits and identified as Curvularia alcornii based on colony characters, morphological features, rDNA-ITS sequence and pathogenicity. This is thought to be the first report of C. alcornii, previously reported as a human pathogen in an immunocompromised patient, as a plant pathogen.