Colletotrichum truncatum causing anthracnose on papaya fruit (Carica papaya) in Brazil

Abstract

Papaya anthracnose caused by Colletotrichum truncatum is reported for the first time in Brazil. The etiological agent was identified by a combination of morphological and molecular approaches. Pathogenicity was confirmed and Koch's postulates fulfilled for a selected isolate from Porto Seguro, Bahia, Brazil. Keywords fungal disease. occurrence. postharvest Papaya (Carica papaya) is among the most widely cultivated and consumed tropical fruits (Serrano and Cattaneo 2010). Among the main producers, México, Brazil, Nigeria, India and Indonesia, Brazil ranked second in 2017 for production volume, producing 1.4 tons on 30.000 ha (IBGE 2017). However, plant diseases lead to reduced productivity in the form of yield loss and have a detrimental impact on fruit quality (Ferreira et al. 2018; Martins and Blum 2014). Papaya yield losses are mainly attributable to phytopathogenic fungi, such as Phytophthora spp., Phoma caricae-papayae, Asperisporium caricae, Oidium caricae, and Colletotrichum spp. (Ventura et al. 2004). Anthracnose is among the most important papaya postharvest diseases due to the large losses in production, which may reach about 90% (Valenzuela et al. 2015). In January 2017, a disease was detected causing postharvest losses on papaya in Porto Seguro, Bahia, Brazil. Symptomatic ripe fruit presented brownish, rounded, necrotic and depressed lesions. Black acervuli were produced in

Diversity of Colletotrichum Species Associated with Anthracnose Disease in Tropical Fruit Crops—A Review

“…Colletotrichum karstii has also been reported from papaya [46]. Papaya anthracnose caused by C. truncatum and C. okinawense was reported by Vieria et al (2020) [123] and Dias et al (2020) [59], respectively. Both species are the latest report on papaya anthracnose in Brazil.…”

Transcriptome, Plant Hormone, and Metabolome Analysis Reveals the Mechanism of Purple Pericarp Formation in ‘Zihui’ Papaya (Carica papaya L.)

“…Papaya (Carica papaya L.) is a perennial fleshy herb and a significant fruit-bearing tree in tropical and subtropical regions. It is popular worldwide, being rich in vitamins, protein, catabolic enzymes, and minerals [1]. An important breeding trait is the appearance of papaya pericarp, which is crucial to consumer evaluation.…”