What question did this study set out to answer?

To evaluate the antifungal efficacy and plant-growth-promoting abilities of a newly isolated Bacillus velezensis KT27 strain against Cercospora beticola and other phytopathogenic fungi under laboratory and field conditions.

May 30, 2025PLoS ONEOpen Access

Biocontrol of Cercospora leaf spot in sugar beet by a novel Bacillus velezensis KT27 strain: Enhanced antifungal activity and growth promotion in laboratory and field conditions

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Authors

AWAgnieszka WitaUniversity of Life Sciences in Poznań WBW. BiałasUniversity of Life Sciences in Poznań KCKatarzyna CzaczykUniversity of Life Sciences in Poznań

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Implication

Experimental study demonstrates Cercospora leaf spot suppression and increased yield in sugar beet via Bacillus velezensis KT27, highlighting its potential as an eco-friendly fungicide alternative.

Key Points

To evaluate the antifungal efficacy and plant-growth-promoting abilities of a newly isolated Bacillus velezensis KT27 strain against Cercospora beticola and other phytopathogenic fungi under laboratory and field conditions.
Assessed in vitro fungal growth inhibition of Cercospora beticola, Rhizoctonia cerealis, and Fusarium oxysporum using intact bacterial cultures, cell-free supernatants, and cultures enriched with thermally inactivated fungal biomass.
Profiled the production of lipopeptides (surfactin, iturin, fengycin) and the solubilization of phosphorus, potassium, and zinc.
Evaluated Cercospora leaf spot protection and root yield in sugar beet field trials comparing KT27 treatments against untreated controls and a three-fungicide chemical regimen.
In vitro, B. velezensis KT27 inhibited C. beticola growth by 60.2%, but using cell-free supernatant reduced antifungal activity by more than 3.5-fold.
Enriching bacterial cultures with inactivated fungal biomass enhanced antagonistic activity, achieving field protection against Cercospora leaf spot that was only 9.1% lower than triple chemical fungicide treatments.
Treatment with B. velezensis KT27 promoted sugar beet growth, resulting in root yield increases of up to 15.2% over untreated controls.

Cite This Study

Wita et al. (2025) studied this question.

synapsesocial.com/papers/6a719c5bc1a24a6142dbb93f https://doi.org/10.1371/journal.pone.0323889

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Implication

Experimental study demonstrates Cercospora leaf spot suppression and increased yield in sugar beet via Bacillus velezensis KT27, highlighting its potential as an eco-friendly fungicide alternative.

Biocontrol of Cercospora leaf spot in sugar beet by a novel Bacillus velezensis KT27 strain: Enhanced antifungal activity and growth promotion in laboratory and field conditions

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Implication

Key Points

Cite This Study

Biocontrol of Cercospora leaf spot in sugar beet by a novel Bacillus velezensis KT27 strain: Enhanced antifungal activity and growth promotion in laboratory and field conditions

Discussion

Member takes

Implication

Key Points

Cite This Study

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