First Report of Lasiodiplodia theobromae Causing Gummosis on Citrus grandis (L.) Osbeck in Vietnam

Vo Thi Ngoc Trai; Tran Thi Thu Ha; Nguyen Bao Hung

doi:10.5423/RPD.2024.30.1.78

Research in Plant Disease (Mar 2024)

First Report of Lasiodiplodia theobromae Causing Gummosis on Citrus grandis (L.) Osbeck in Vietnam

Vo Thi Ngoc Trai,
Tran Thi Thu Ha,
Nguyen Bao Hung

Affiliations

Vo Thi Ngoc Trai: Laboratory of Enzyme and Protein Technology, Institute of Biotechnology, Hue University, Hue 530000, Vietnam
Tran Thi Thu Ha: Department of Plant Protection, University of Agriculture and Forestry, Hue University, Hue 530000, Vietnam
Nguyen Bao Hung: Department of Applied Biology and Biotechnology, Institute of Biotechnology, Hue University, Hue 530000, Vietnam

DOI: https://doi.org/10.5423/RPD.2024.30.1.78
Journal volume & issue: Vol. 30, no. 1
pp. 78 – 81

Abstract

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This study aims to isolate and identify the fungal pathogen responsible for gummosis disease affecting Thanh Tra pomelo in Vietnam. Through molecular identification utilizing primer pairs ITS5 and ITS4, the analysis pinpointed Lasiodiplodia theobromae as the specific fungal pathogen. Notably, the fungal colonies exhibited vigorous growth on potato dextrose agar. Initially, these colonies appeared whitish-grey, transforming into a black-grey hue within 5–7 days at a temperature of 30°C. According to previous reports, Phytophthora spp. was the most common pathogenic genus causing gummosis on Thanh Tra pomelo in Vietnam. To our knowledge, this is the first report on L. theobromae causing gummosis on Thanh Tra pomelo in Vietnam.

Published in Research in Plant Disease

ISSN: 1598-2262 (Print); 2233-9191 (Online)
Publisher: Hanrimwon Publishing Company
Country of publisher: Korea, Republic of
LCC subjects: Agriculture: Agriculture (General)
Website: http://www.online-rpd.org/main.html

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