Fusarium Root Rot Complex in Soybean: Molecular Characterization, Trichothecene Formation, and Cross-Pathogenicity

Hafez, M. B.; Abdelmagid, Ahmed; Aboukhaddour, Reem; Adam, Lorne R.; Daayf, Fouad

doi:10.1094/phyto-03-21-0083-r

Cited by 10 publications

(41 citation statements)

References 126 publications

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“…F. oxysporum was found to be the most severe species in terms of its impact on plant growth, indicating that it is the most aggressive isolate. These findings are consistent with previous studies that have shown F. oxysporum and F. solani to be highly virulent pathogens that can cause significant yield losses in soybean ( Hafez et al, 2021 ).…”

Section: Resultssupporting

confidence: 93%

Distribution and Pathogenicity of Fusarium Species Associated with Soybean Root Rot in Northeast China

Liu,

Wei,

Chang

et al. 2023

Plant Pathol J

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Fusarium root rot is an increasingly severe problem in soybean cultivation. Although several Fusarium species have been reported to infect soybean roots in Heilongjiang province, their frequency and aggressiveness have not been systematically quantified in the region. This study aimed to investigate the diversity and distribution of Fusarium species that cause soybean root rot in Heilongjiang province over two years. A total of 485 isolates belonging to nine Fusarium species were identified, with F. oxysporum and F. solani being the most prevalent. Pot experiments were conducted to examine the relative aggressiveness of different Fusarium species on soybean roots, revealing that F. oxysporum and F. solani were the most aggressive pathogens, causing the most severe root rot symptoms. The study also assessed the susceptibility of different soybean cultivars to Fusarium root rot caused by F. oxysporum and F. solani. The results indicated that the soybean cultivar DN51 exhibited the most resistance to both pathogens, indicating that it may possess genetic traits that make it less susceptible to Fusarium root rot. These findings provide valuable insights into the diversity and distribution of Fusarium species that cause soybean root rot and could facilitate the development of effective management strategies for this disease.

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Section: Resultssupporting

confidence: 93%

Distribution and Pathogenicity of Fusarium Species Associated with Soybean Root Rot in Northeast China

Liu,

Wei,

Chang

et al. 2023

Plant Pathol J

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“…Notably, Fusarium also showed prominent pathogenicity against the host, causing a series of diseases that reduced host growth. As previously described by Hafez et al [ 54 ], Fusarium can affect soybean, resulting in Fusarium root rot. In addition, Fusarium may also be the causal agent of mango leaf spots [ 55 ].…”

Section: Discussionmentioning

confidence: 81%

Structure and ecological function of the soil microbiome associated with ‘Sanghuang’ mushrooms suffering from fungal diseases

Xu,

Sun,

et al. 2023

BMC Microbiol

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Background The most serious challenges in medicinal ‘Sanghuang’ mushroom production are the fungal diseases caused by various molds. Application of biological agents has been regarded as a potential crop disease management strategy. Here, the soil microbiome associated with ‘Sanghuang’ mushroom affected by fungal diseases grown under field cultivation (FC) and hanging cultivation (HC) was characterized using culture-dependent and culture-independent methods. Results A total of 12,525 operational taxonomic units (OTUs) and 168 pure cultures were obtained using high-throughput sequencing and a culture-dependent method, respectively. From high-throughput sequencing, we found that HC samples had more OTUs, higher α-diversity, and greater microbial community complexity than FC samples. Analysis of β-diversity divided the soil microbes into two groups according to cultivation mode. Basidiomycota (48.6%) and Ascomycota (46.5%) were the two dominant fungal phyla in FC samples, with the representative genera Trichoderma (56.3%), Coprinellus (29.4%) and Discosia (4.8%), while only the phylum Ascomycota (84.5%) was predominant in HC samples, with the representative genera Discosia (34.0%), Trichoderma (30.2%), Penicillium (14.9%), and Aspergillus (7.8%). Notably, Trichoderma was predominant in both the culture-independent and culture-dependent analyses, with Trichoderma sp. FZ0005 showing high host pathogenicity. Among the 87 culturable bacteria, 15 exhibited varying extents of antifungal activity against Trichoderma sp. FZ0005, with three strains of Bacillus spp. (HX0037, HX0016, and HX0039) showing outstanding antifungal capacity. Conclusions Overall, our results suggest that Trichoderma is the major causal agent of ‘Sanghuang’ fungal diseases and that Bacillus strains may be used as biocontrol agents in ‘Sanghuang’ cultivation.

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“…The other two species included in our research, F. culmorum and F. redolens , have been rarely studied in the context of their pathogenicity on soybean seedlings. F. culmorum was found to be pathogenic for soybean in Canada [ 50 , 55 ]. Although, Zeng et al [ 23 ] describe this species as one of the major causal agents of soybean root rot in three provinces in China.…”

Section: Discussionmentioning

confidence: 99%

Identification and Pathogenicity of Fusarium Isolated from Soybean in Poland

Olszak-Przybyś,

Korbecka-Glinka,

Patkowska

2023

Pathogens

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Fungi belonging to the Fusarium genus are commonly isolated from soybean plants and seeds but not all of them are pathogenic. The aim of this study was to compare the pathogenicity among different Fusarium isolates obtained from soybean plants with disease symptoms originating from an experimental field located in the southeast of Poland. Nineteen fungal isolates were selected for the pathogenicity assay, including eight isolates of F. oxysporum, six isolates of F. graminearum, four isolates of F. culmorum and one isolate of F. redolens. Species identification of these isolates was carried out using microscopic methods and sequencing of two genes: translation elongation factor 1-alpha (TEF1) and RNA polymerase second largest subunit (RPB2). To our knowledge, this is the first report of F. redolens being isolated from soybean in Europe. The pathogenicity test was set up by fungal inoculation of healthy soybean seeds of three cultivars: Abelina, Atlanta and Mavka. Symptoms were assessed seven days after inoculation. Disease area percentage of Fusarium inoculated seeds was significantly higher compared to uninoculated control. Nineteen isolates differed in their aggressiveness as the median disease area percentage ranged between 5.0 and 88.0% depending on isolate. The obtained isolates of four Fusarium species may be used in the future screening of soybean cultivars for resistance to these pathogens.

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Fusarium Root Rot Complex in Soybean: Molecular Characterization, Trichothecene Formation, and Cross-Pathogenicity

Cited by 10 publications

References 126 publications

Distribution and Pathogenicity of Fusarium Species Associated with Soybean Root Rot in Northeast China

Distribution and Pathogenicity of Fusarium Species Associated with Soybean Root Rot in Northeast China

Structure and ecological function of the soil microbiome associated with ‘Sanghuang’ mushrooms suffering from fungal diseases

Identification and Pathogenicity of Fusarium Isolated from Soybean in Poland

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