Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam

Since the beginning of 2023, an outbreak of Fusarium wilt-like symptoms on lettuce (Lactuca sativa L.) has been observed in Lam Dong province, Vietnam. Wilting consistently combined with yellow leaves, root rot and stunted growth are common symptoms of infected plants. Thirty-one fungal isolates wer...

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Những tác giả chính:	Lê, Dũng, Trần, Thị Minh Loan, Cao, Thị Làn, Phạm, Ngọc Tuân, Đinh, Quảng Anh, Nguyễn, Khánh Uyên
Định dạng:	Journal article
Ngôn ngữ:	Vietnamese
Được phát hành:	Springer nature 2024
Truy cập trực tuyến:	https://scholar.dlu.edu.vn/handle/123456789/3551
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spelling	oai:scholar.dlu.edu.vn:123456789-35512024-08-20T13:34:01Z Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam Lê, Dũng Trần, Thị Minh Loan Cao, Thị Làn Phạm, Ngọc Tuân Đinh, Quảng Anh Nguyễn, Khánh Uyên Since the beginning of 2023, an outbreak of Fusarium wilt-like symptoms on lettuce (Lactuca sativa L.) has been observed in Lam Dong province, Vietnam. Wilting consistently combined with yellow leaves, root rot and stunted growth are common symptoms of infected plants. Thirty-one fungal isolates were recovered from symptomatic lettuce plants and identified based on morphological and molecular characteristics (rDNA internal transcribed spacer (ITS) and the translation elongation factor (TEF-1α) gene sequences) as F. oxysporum (51.6%), F. incarnatum-equiseti species complex [FIESC: F. compactum (16.1%) and F. sulawesiense (3.2%)], and Plectosphaerella cucumerina (29.0%). The composition of these fungi varied between locations, with co-infection by P. cucumerina and Fusarium spp. observed in lettuce plants from the same field. Pathogenicity tests showed that all isolates were pathogenic to lettuce, causing reduced seed germination, induced collar rot, and decreased seedling survival and mass. Notably, F. oxysporum isolates caused collar rot earlier, significantly reducing seedling survival and indicating faster disease progression than P. cucumerina and FIESC. Additionally, there was wide variation in virulence and specialization of isolates at different stages of seedling growth: P. cucumerina L0311 primarily reduced seed germination, while F. oxysporum L0911 and L0331 strongly inhibited seedling growth. These findings suggest a shift in the pathogenic roles of the isolates during seed germination and seedling growth, with potential variation continuing post-nursery. This work is the first to report on the population and virulence profile of fungi causing lettuce wilt in Vietnam, providing essential insights for quarantine measures, disease monitoring, and management strategies. 2024-08-16T02:08:57Z 2024-08-16T02:08:57Z 2024-08 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter https://scholar.dlu.edu.vn/handle/123456789/3551 10.1007/s42161-024-01740-x vi Journal of Plant Pathology https://doi.org/10.1007/s42161-024-01740-x Springer nature Trường Đại học Đà Lạt
institution	Thư viện Trường Đại học Đà Lạt
collection	Thư viện số
language	Vietnamese
description	Since the beginning of 2023, an outbreak of Fusarium wilt-like symptoms on lettuce (Lactuca sativa L.) has been observed in Lam Dong province, Vietnam. Wilting consistently combined with yellow leaves, root rot and stunted growth are common symptoms of infected plants. Thirty-one fungal isolates were recovered from symptomatic lettuce plants and identified based on morphological and molecular characteristics (rDNA internal transcribed spacer (ITS) and the translation elongation factor (TEF-1α) gene sequences) as F. oxysporum (51.6%), F. incarnatum-equiseti species complex [FIESC: F. compactum (16.1%) and F. sulawesiense (3.2%)], and Plectosphaerella cucumerina (29.0%). The composition of these fungi varied between locations, with co-infection by P. cucumerina and Fusarium spp. observed in lettuce plants from the same field. Pathogenicity tests showed that all isolates were pathogenic to lettuce, causing reduced seed germination, induced collar rot, and decreased seedling survival and mass. Notably, F. oxysporum isolates caused collar rot earlier, significantly reducing seedling survival and indicating faster disease progression than P. cucumerina and FIESC. Additionally, there was wide variation in virulence and specialization of isolates at different stages of seedling growth: P. cucumerina L0311 primarily reduced seed germination, while F. oxysporum L0911 and L0331 strongly inhibited seedling growth. These findings suggest a shift in the pathogenic roles of the isolates during seed germination and seedling growth, with potential variation continuing post-nursery. This work is the first to report on the population and virulence profile of fungi causing lettuce wilt in Vietnam, providing essential insights for quarantine measures, disease monitoring, and management strategies.
format	Journal article
author	Lê, Dũng Trần, Thị Minh Loan Cao, Thị Làn Phạm, Ngọc Tuân Đinh, Quảng Anh Nguyễn, Khánh Uyên
spellingShingle	Lê, Dũng Trần, Thị Minh Loan Cao, Thị Làn Phạm, Ngọc Tuân Đinh, Quảng Anh Nguyễn, Khánh Uyên Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam
author_facet	Lê, Dũng Trần, Thị Minh Loan Cao, Thị Làn Phạm, Ngọc Tuân Đinh, Quảng Anh Nguyễn, Khánh Uyên
author_sort	Lê, Dũng
title	Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam
title_short	Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam
title_full	Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam
title_fullStr	Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam
title_full_unstemmed	Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam
title_sort	diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in vietnam
publisher	Springer nature
publishDate	2024
url	https://scholar.dlu.edu.vn/handle/123456789/3551
_version_	1813142629944131584

Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam

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