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Fennel and other aqueous Apiaceae byproduct extracts as novel bioprotectants : unravelling their bioactivity, working mechanism and bioactive compounds

Karen De Kock (UGent) , Pierfrancesco Motti (UGent) , Eva Degroote (UGent) , Maaike Perneel (UGent) , Bart Van Droogenbroeck, Bruno P. A. Cammue, Monica Höfte (UGent) , Kristof Demeestere (UGent) , Sven Mangelinckx (UGent) , Danny Geelen (UGent) , et al.
(2025) PLANT STRESS. 15.
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Abstract
With regard to circular economy, upcycling organic waste streams to products with a biopesticidal activity represents a promising approach in integrated pest management. The current study demonstrates the induced resistance (IR) activity of seven aqueous extracts from byproducts of the Apiaceae plant family in rice to the rootknot nematode Meloidogyne graminicola. Furthermore, we unveiled that the systemic IR activity of an aqueous extract from fennel (FWE) is conserved among monocot and dicot plants and is effective against a wide range of plant pathogens as it induces resistance in rice against Pyricularia oryzae, in sugar beet against Heterodera schachtiii, in tomato against Meloidogyne incognita and in Arabidopsis against Hyaloperonospora arabidopsidis and Botrytis cinerea. The extract also showed a strong direct nematicidal activity against M. graminicola, fungicidal activity against P. oryzae and bactericidal activity against Pseudomonas syringae pv. tomato DC3000. Transcriptome analysis in combination with complementary biochemical validation in FWE-treated rice plants underlined the importance of an altered reactive oxygen species (ROS) metabolism, lignin accumulation and elevated levels of abscisic acid (ABA),indole-3-acetic acid (IAA) and jasmonic acid (JA) in FWE-treated rice plants. Lastly, bioactivity-guided fractionation and identification revealed several small organic acids such as alanine, malic acid and & Ucy;-aminobutyric acid (GABA) as potential IR eliciting constituents in the extracts. To summarize, our data demonstrates high potential for valorization of Apiaceae byproduct extracts as preventive or curative plant bioprotectants in near-future eco-friendly agricultural practices.
Keywords
ACID-INDUCED RESISTANCE, ROOT-KNOT NEMATODES, SPECTRUM DISEASE RESISTANCE, ESSENTIAL OILS, NEMATOCIDAL ACTIVITY, SYSTEMIC RESISTANCE, BOTRYTIS-CINEREA, ABSCISIC-ACID, PLANT-TISSUES, DOWNY MILDEW, Apiaceae byproduct extracts, Broad-spectrum biopesticides, Induced resistance, Bioactivity-guided screening, Waste stream valorization, Circular economy

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MLA
De Kock, Karen, et al. “Fennel and Other Aqueous Apiaceae Byproduct Extracts as Novel Bioprotectants : Unravelling Their Bioactivity, Working Mechanism and Bioactive Compounds.” PLANT STRESS, vol. 15, 2025, doi:10.1016/j.stress.2025.100750.
APA
De Kock, K., Motti, P., Degroote, E., Perneel, M., Van Droogenbroeck, B., Cammue, B. P. A., … Kyndt, T. (2025). Fennel and other aqueous Apiaceae byproduct extracts as novel bioprotectants : unravelling their bioactivity, working mechanism and bioactive compounds. PLANT STRESS, 15. https://doi.org/10.1016/j.stress.2025.100750
Chicago author-date
De Kock, Karen, Pierfrancesco Motti, Eva Degroote, Maaike Perneel, Bart Van Droogenbroeck, Bruno P. A. Cammue, Monica Höfte, et al. 2025. “Fennel and Other Aqueous Apiaceae Byproduct Extracts as Novel Bioprotectants : Unravelling Their Bioactivity, Working Mechanism and Bioactive Compounds.” PLANT STRESS 15. https://doi.org/10.1016/j.stress.2025.100750.
Chicago author-date (all authors)
De Kock, Karen, Pierfrancesco Motti, Eva Degroote, Maaike Perneel, Bart Van Droogenbroeck, Bruno P. A. Cammue, Monica Höfte, Kristof Demeestere, Sven Mangelinckx, Danny Geelen, and Tina Kyndt. 2025. “Fennel and Other Aqueous Apiaceae Byproduct Extracts as Novel Bioprotectants : Unravelling Their Bioactivity, Working Mechanism and Bioactive Compounds.” PLANT STRESS 15. doi:10.1016/j.stress.2025.100750.
Vancouver
1.
De Kock K, Motti P, Degroote E, Perneel M, Van Droogenbroeck B, Cammue BPA, et al. Fennel and other aqueous Apiaceae byproduct extracts as novel bioprotectants : unravelling their bioactivity, working mechanism and bioactive compounds. PLANT STRESS. 2025;15.
IEEE
[1]
K. De Kock et al., “Fennel and other aqueous Apiaceae byproduct extracts as novel bioprotectants : unravelling their bioactivity, working mechanism and bioactive compounds,” PLANT STRESS, vol. 15, 2025.
@article{01JM9XDKE20PKMBNSXMQGCJESX,
  abstract     = {{With regard to circular economy, upcycling organic waste streams to products with a biopesticidal activity represents a promising approach in integrated pest management. The current study demonstrates the induced resistance (IR) activity of seven aqueous extracts from byproducts of the Apiaceae plant family in rice to the rootknot nematode Meloidogyne graminicola. Furthermore, we unveiled that the systemic IR activity of an aqueous extract from fennel (FWE) is conserved among monocot and dicot plants and is effective against a wide range of plant pathogens as it induces resistance in rice against Pyricularia oryzae, in sugar beet against Heterodera schachtiii, in tomato against Meloidogyne incognita and in Arabidopsis against Hyaloperonospora arabidopsidis and Botrytis cinerea. The extract also showed a strong direct nematicidal activity against M. graminicola, fungicidal activity against P. oryzae and bactericidal activity against Pseudomonas syringae pv. tomato DC3000. Transcriptome analysis in combination with complementary biochemical validation in FWE-treated rice plants underlined the importance of an altered reactive oxygen species (ROS) metabolism, lignin accumulation and elevated levels of abscisic acid (ABA),indole-3-acetic acid (IAA) and jasmonic acid (JA) in FWE-treated rice plants. Lastly, bioactivity-guided fractionation and identification revealed several small organic acids such as alanine, malic acid and & Ucy;-aminobutyric acid (GABA) as potential IR eliciting constituents in the extracts. To summarize, our data demonstrates high potential for valorization of Apiaceae byproduct extracts as preventive or curative plant bioprotectants in near-future eco-friendly agricultural practices.}},
  articleno    = {{100750}},
  author       = {{De Kock, Karen and Motti, Pierfrancesco and Degroote, Eva and Perneel, Maaike and Van Droogenbroeck, Bart and Cammue, Bruno P. A. and Höfte, Monica and Demeestere, Kristof and Mangelinckx, Sven and Geelen, Danny and Kyndt, Tina}},
  issn         = {{2667-064X}},
  journal      = {{PLANT STRESS}},
  keywords     = {{ACID-INDUCED RESISTANCE,ROOT-KNOT NEMATODES,SPECTRUM DISEASE RESISTANCE,ESSENTIAL OILS,NEMATOCIDAL ACTIVITY,SYSTEMIC RESISTANCE,BOTRYTIS-CINEREA,ABSCISIC-ACID,PLANT-TISSUES,DOWNY MILDEW,Apiaceae byproduct extracts,Broad-spectrum biopesticides,Induced resistance,Bioactivity-guided screening,Waste stream valorization,Circular economy}},
  language     = {{eng}},
  pages        = {{17}},
  title        = {{Fennel and other aqueous Apiaceae byproduct extracts as novel bioprotectants : unravelling their bioactivity, working mechanism and bioactive compounds}},
  url          = {{http://doi.org/10.1016/j.stress.2025.100750}},
  volume       = {{15}},
  year         = {{2025}},
}
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