Identification and Characterization of Cercospora malayensis Causing Leaf Spot on Kenaf

Abstract

In September 2013 and 2014, a significant number of kenaf plants showing symptoms of leaf spots with approximately 50% incidence were found in experimental plots in Iksan and Namwon, Korea. Leaf spots were circular to irregular, more or less vein-limited, reaching to 10 mm in diameter. The spots were initially uniformly brown to reddish brown, turning pale brown with a purplish margin and showing grayish patches on the lesion due to heavy fructification. The causative agent of the leaf spot disease was identified as Cercospora malayensis. The pathogenicity test was conducted with similar results, which fulfilled Koch's postulates. This is the first report of C. malayensis infection of kenaf in Korea.

Identification and Characterization of Causal Agent of Cercospora Leaf Spot Disease of Okra

“…On the basis of morphological and microscopic observation, the pathogen was identified as Cercospora spp. as described by Deighton [15], Farrag [17], Meghvansi, et al [22], Ellis and Everhart [28], Narayan, et al [29], Rahman, et al [33] and Park, et al [34]. Several tests were performed to measure the growth profile and characterize the isolated fungi.…”

Cryptic diversity, multilocus phylogeny, and pathogenicity of cercosporoid fungi associated with common bean and cowpea

“…Five seeds of common bean and cowpea plants were cultured in each pot, and pots were incubated at 25–27 °C in a greenhouse for 3 weeks. The pathogenicity test was performed according to Park et al (2017) with some modifications. To do this, hyphal suspensions of the isolates IRAN 3848C ( C .…”

Identificación de Cercospora spp. como agente causal de mancha foliar en cultivos de uvilla (Physalis peruviana L.) en la Sierra norte del Ecuador

“…El género Cercospora perteneciente a la familia Mycosphaerellaceae, es uno de los géneros más grandes, y sus especies se consideran patógenos importantes de una amplia variedad de plantas (Park et al 2017;Rangel et al 2020). Se reconocen 659 especies en el género Cercospora y 281 especies morfológicamente idénticas que se incluyen en el complejo Cercospora apii (Groenewald et al 2005;Park et al 2017).…”

“…El género Cercospora perteneciente a la familia Mycosphaerellaceae, es uno de los géneros más grandes, y sus especies se consideran patógenos importantes de una amplia variedad de plantas (Park et al 2017;Rangel et al 2020). Se reconocen 659 especies en el género Cercospora y 281 especies morfológicamente idénticas que se incluyen en el complejo Cercospora apii (Groenewald et al 2005;Park et al 2017). La mayoría de especies de este género no tienen una etapa sexual conocida y en las pocas especies que tienen una etapa sexual, el teleomorfo pertenece al género Mycosphaerella (Goodwin et al 2001;Świderska-Burek et al 2020).…”