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

Wang, Bin; Zhang, Yongyan; Liu, Jiapeng; Sheng, Ou; Liu, Fan; Qiu, Dongliang; Lü, Peitao; Deng, Guiming; Cheng, Chunzhen

doi:10.3390/horticulturae8010012

Open AccessCommunication

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

by

Bin Wang

^1,†,

Yongyan Zhang

^1,2,†,

Jiapeng Liu

¹,

Ou Sheng

³

,

Fan Liu

^1,3,

Dongliang Qiu

¹

,

Peitao Lü

^1,*

,

Guiming Deng

³

and

Chunzhen Cheng

^1,2,*

¹

College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China

²

College of Horticulture, Shanxi Agricultural University, Jinzhong 030801, China

³

Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou 510640, China

^*

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Horticulturae 2022, 8(1), 12; https://doi.org/10.3390/horticulturae8010012

Submission received: 17 November 2021 / Revised: 17 December 2021 / Accepted: 21 December 2021 / Published: 23 December 2021

(This article belongs to the Special Issue Pathogens and Disease Control of Fruit Trees)

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Abstract

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.

Keywords: banana; leaf blight disease; Alternaria jacinthicola; pathogen isolation and identification

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MDPI and ACS Style

Wang, B.; Zhang, Y.; Liu, J.; Sheng, O.; Liu, F.; Qiu, D.; Lü, P.; Deng, G.; Cheng, C. A New Leaf Blight Disease Caused by Alternaria jacinthicola on Banana in China. Horticulturae 2022, 8, 12. https://doi.org/10.3390/horticulturae8010012

AMA Style

Wang B, Zhang Y, Liu J, Sheng O, Liu F, Qiu D, Lü P, Deng G, Cheng C. A New Leaf Blight Disease Caused by Alternaria jacinthicola on Banana in China. Horticulturae. 2022; 8(1):12. https://doi.org/10.3390/horticulturae8010012

Chicago/Turabian Style

Wang, Bin, Yongyan Zhang, Jiapeng Liu, Ou Sheng, Fan Liu, Dongliang Qiu, Peitao Lü, Guiming Deng, and Chunzhen Cheng. 2022. "A New Leaf Blight Disease Caused by Alternaria jacinthicola on Banana in China" Horticulturae 8, no. 1: 12. https://doi.org/10.3390/horticulturae8010012

APA Style

Wang, B., Zhang, Y., Liu, J., Sheng, O., Liu, F., Qiu, D., Lü, P., Deng, G., & Cheng, C. (2022). A New Leaf Blight Disease Caused by Alternaria jacinthicola on Banana in China. Horticulturae, 8(1), 12. https://doi.org/10.3390/horticulturae8010012

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

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