First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with Plants

<i>Vicia</i> species are of great value in ecological restoration, soil improvement, and the development of a forage resource. In 2024, a novel pod disease affecting four-seeded vetches (<i>Vicia tetrasperma</i>) emerged in Rongchang District, China, leading to severe yield l...

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Main Authors: Kexin Shi, Jingxuan Xu, Hongji Wang, Xiaoliang Xue, Zihan Xie, Yuzhu Han
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/14/10/1480
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author Kexin Shi
Jingxuan Xu
Hongji Wang
Xiaoliang Xue
Zihan Xie
Yuzhu Han
author_facet Kexin Shi
Jingxuan Xu
Hongji Wang
Xiaoliang Xue
Zihan Xie
Yuzhu Han
author_sort Kexin Shi
collection DOAJ
description <i>Vicia</i> species are of great value in ecological restoration, soil improvement, and the development of a forage resource. In 2024, a novel pod disease affecting four-seeded vetches (<i>Vicia tetrasperma</i>) emerged in Rongchang District, China, leading to severe yield loss. After obtaining the main pathogenic strain, FVS1, through the tissue isolation method, which was verified according to Koch’s postulates, and by combining morphological characteristics with multigene phylogenetic analysis, FVS1 was identified as <i>Fusarium proliferatum</i>. The biological properties indicated that the most suitable culture medium of the fungus was oatmeal agar (OA), with the optimum growth temperature 25 °C and the lethal temperature being 35 °C. FVS1 exhibited insensitivity within a pH range of 7 to 9, as well as high adaptability to variations in light duration. To elucidate the physiological and biochemical changes in four-seeded vetches in response to FVS1 infection, non-targeted metabolomics analysis identified 379 differential metabolites, mainly comprising organic acids and derivatives, lipids and lipid-like molecules, and phenylpropanoids and polyketides. The results demonstrated that <i>F. proliferatum</i> primarily induced the disease by influencing alterations in the secondary metabolites associated with amino acid metabolism, lipid metabolism, and flavonoid biosynthesis. Four-seeded vetches improved tolerance to the fungus by accumulating histidine, aspartic acid, arginosuccinate, ethanolamine, glycerophosphocholine, naringenin, and catechin. <i>Trichoderma harzianum</i> (M3) had the best control effectiveness, and the inhibition rate was 60.68%. This study, for the first time, revealed that <i>F. proliferatum</i> caused a pod disease in four-seeded vetches. We analyzed the mechanism of plant–pathogen interaction and screened potential biocontrol strains, providing a theoretical basis for regional disease management.
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issn 2223-7747
language English
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spelling doaj-art-5a03400324df445196d6cea249ff5a002025-08-20T02:33:58ZengMDPI AGPlants2223-77472025-05-011410148010.3390/plants14101480First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with PlantsKexin Shi0Jingxuan Xu1Hongji Wang2Xiaoliang Xue3Zihan Xie4Yuzhu Han5College of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, China<i>Vicia</i> species are of great value in ecological restoration, soil improvement, and the development of a forage resource. In 2024, a novel pod disease affecting four-seeded vetches (<i>Vicia tetrasperma</i>) emerged in Rongchang District, China, leading to severe yield loss. After obtaining the main pathogenic strain, FVS1, through the tissue isolation method, which was verified according to Koch’s postulates, and by combining morphological characteristics with multigene phylogenetic analysis, FVS1 was identified as <i>Fusarium proliferatum</i>. The biological properties indicated that the most suitable culture medium of the fungus was oatmeal agar (OA), with the optimum growth temperature 25 °C and the lethal temperature being 35 °C. FVS1 exhibited insensitivity within a pH range of 7 to 9, as well as high adaptability to variations in light duration. To elucidate the physiological and biochemical changes in four-seeded vetches in response to FVS1 infection, non-targeted metabolomics analysis identified 379 differential metabolites, mainly comprising organic acids and derivatives, lipids and lipid-like molecules, and phenylpropanoids and polyketides. The results demonstrated that <i>F. proliferatum</i> primarily induced the disease by influencing alterations in the secondary metabolites associated with amino acid metabolism, lipid metabolism, and flavonoid biosynthesis. Four-seeded vetches improved tolerance to the fungus by accumulating histidine, aspartic acid, arginosuccinate, ethanolamine, glycerophosphocholine, naringenin, and catechin. <i>Trichoderma harzianum</i> (M3) had the best control effectiveness, and the inhibition rate was 60.68%. This study, for the first time, revealed that <i>F. proliferatum</i> caused a pod disease in four-seeded vetches. We analyzed the mechanism of plant–pathogen interaction and screened potential biocontrol strains, providing a theoretical basis for regional disease management.https://www.mdpi.com/2223-7747/14/10/1480<i>Vicia tetrasperma</i><i>Fusarium proliferatum</i>biological characteristicsbiological controlmetabolomics analysis
spellingShingle Kexin Shi
Jingxuan Xu
Hongji Wang
Xiaoliang Xue
Zihan Xie
Yuzhu Han
First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with Plants
Plants
<i>Vicia tetrasperma</i>
<i>Fusarium proliferatum</i>
biological characteristics
biological control
metabolomics analysis
title First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with Plants
title_full First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with Plants
title_fullStr First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with Plants
title_full_unstemmed First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with Plants
title_short First Report of <i>Fusarium proliferatum</i> Infection in Pods of Four-Seeded Vetch and Its Relationships with Plants
title_sort first report of i fusarium proliferatum i infection in pods of four seeded vetch and its relationships with plants
topic <i>Vicia tetrasperma</i>
<i>Fusarium proliferatum</i>
biological characteristics
biological control
metabolomics analysis
url https://www.mdpi.com/2223-7747/14/10/1480
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