First Report of Leaf Spot Disease Caused by <i>Alternaria jacinthicola</i> on <i>Tagetes erecta</i> in China

Luo, Haibo; Jia, Guo; F., D.; Sun, Zhengxiang; Deng, Jian Xin

doi:10.1094/pdis-01-18-0182-pdn

Cited by 3 publications

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“…Phylogenetic analysis results showed that the causal pathogen was A. jacinthicola. A. jacinthicola has been reported as a plant pathogen causing blight leaf disease in water hyacinth [24] and leaf spot disease in Tagetes erecta [25]. To the best of our knowledge, this study represents the first report of banana leaf blight caused by A. jacinthicola in China.…”

Section: Discussionmentioning

confidence: 87%

“…Among these Alternaria species, A. jacinthicola has become an increasing important pathogen causing leaf diseases to a broad host range. The fungus can cause leaf spot and leaf blight diseases, which has been reported in water hyacinth and marigold [24,25]. A. jacinthicola is not easily distinguishable from other Alternaria species from morphological level.…”

Section: Introductionmentioning

confidence: 99%

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A New Leaf Blight Disease Caused by Alternaria jacinthicola on Banana in China

et al. 2021

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A leaf blight disease with an incidence level of about 50% was found on Robusta banana in Guangdong province of China in September 2020. The early symptom appeared as pale gray to black brown, irregular, small, necrotic lesions mainly on the top 3–5 leaves. Severely infected leaves were withered and necrotic. Two representative fungus strains, strain L1 and strain L2, were isolated from affected banana leaves, and morphological and molecular identification analysis confirmed that the two fungi were both Alternaria jacinthicola. Many Alternaria species have been reported to cause wilting, decay, leaf blight and leaf spots on plants and lead to serious economic losses in their production, including A. alternata, causing leaf blight and leaf sport diseases on banana. The Koch’s postulates of A. jacinthicola causing the leaf blight disease was further fulfilled, which confirmed that it is the causal agent of this disease. To our knowledge, this is the first report of A. jacinthicola causing leaf blight on banana in China.

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Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%