What question did this study set out to answer?

Identify the causal fungal agent of cowpea Fusarium wilt and screen antagonistic bacteria from healthy plants as potential biocontrol agents.

August 16, 2026HorticulturaeOpen Access

Isolation and Identification of Fusarium oxysporum Causing Cowpea Fusarium Wilt in Hainan and In Vitro Screening of Antagonistic Bacteria

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Authors

WBWang BaoHainan University DGDa GuanYunnan Agricultural University WYWanrong Yan

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Implication

In vitro study identifies Fusarium oxysporum as the cowpea wilt pathogen and isolates 22 antagonistic bacterial strains, highlighting promising biocontrol agents for sustainable crop protection.

Key Points

Identify the causal fungal agent of cowpea Fusarium wilt and screen antagonistic bacteria from healthy plants as potential biocontrol agents.
Surveyed 14 cowpea fields in Hainan to isolate fungi, evaluate pathogenicity, and characterize the pathogen via morphological and multigene molecular analyses.
Screened rhizosphere and endophytic bacteria from healthy plants using dual culture assays and conducted phylogenetic analyses using whole-genome sequencing of 285 orthologous single-copy genes.
Fusarium wilt occurred across all 14 surveyed fields (mean incidence 15.35%, range 3.20%–76.40%), with six highly pathogenic isolates identified as Fusarium oxysporum.
Identified 22 bacterial strains with stable in vitro antagonism against F. oxysporum, exhibiting fungal growth inhibition rates ranging from 42.62% to 68.47%.
Whole-genome sequencing classified the antagonistic strains into 15 Bacillus isolates (12 B. velezensis, 2 B. subtilis, 1 B. tropicus), along with species of Lysinibacillus, Pantoea, Klebsiella, Serratia, and Pseudomonas.

Cite This Study

Bao et al. (2026) studied this question.

synapsesocial.com/papers/6a8179dcf2fb91fc834ad50c https://doi.org/10.3390/horticulturae12081008

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Implication

In vitro study identifies Fusarium oxysporum as the cowpea wilt pathogen and isolates 22 antagonistic bacterial strains, highlighting promising biocontrol agents for sustainable crop protection.

Isolation and Identification of Fusarium oxysporum Causing Cowpea Fusarium Wilt in Hainan and In Vitro Screening of Antagonistic Bacteria

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Key Points

Cite This Study

Isolation and Identification of Fusarium oxysporum Causing Cowpea Fusarium Wilt in Hainan and In Vitro Screening of Antagonistic Bacteria

Discussion

Member takes

Implication

Key Points

Cite This Study

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