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Gums induced in tulip (Tulipa gesneriana L.) bulbs by Fusarium oxysporum f. sp. tulipae elicit bikaverin in the mycelium of the pathogen Cover

Gums induced in tulip (Tulipa gesneriana L.) bulbs by Fusarium oxysporum f. sp. tulipae elicit bikaverin in the mycelium of the pathogen

Current Agronomy
Volume 55 (2026): Issue 3 (February 2026)
By: ,  ,  ,  ,   and    
Open Access
|Jun 2026
Figures & tables

Figures & Tables

Figure 1.

Gummosis in tulip bulbs cv. Apeldoorn induced by Fusarium oxysporum f. sp. tulipae (on left) and by ethephon (2-chloroethylphosphonic acid) – ethylene releasing compounds (on right). Author of photographs: Justyna Goraj-Koniarska.

Figure 2.

Experiment with Fusarium oxysporum f. sp. tulipae. In the control treatment (left), no mycelial growth was observed. In the treatment supplemented with gums, the mycelium develops and produces pigments.

Figure 3.

The UV chromatogram of the extract from mycelium of Fusarium oxysporum f. sp. tulipae grown in tulip gum solution.

Bikaverin and norbikaverin content (mg/100 mg dry matter) in Fusarium oxysporum f_ sp_ tulipae mycelium grown with tulip gum solution_

SampleNorbikaverin (Rt = 44.02)Bikaverin (Rt = 47.15)Total
Mycelium after 7 days0.64 ± 0.062.94 ± 0.263.58 ± 0.32
Mycelium after 15 days1.02 ± 0.114.62 ± 0.555.64 ± 0.62
DOI: https://doi.org/10.2478/cag-2026-0002 | Journal eISSN: 3071-740X | Journal ISSN: 2081-2787
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Language: English
Page range: 14 - 19
Submitted on: Nov 3, 2025
Accepted on: Dec 22, 2025
Published on: Jun 16, 2026
Published by: Institute of Soil Science and Plant Cultivation
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
tulip gums,
naphthoquinones,
bikaverin,
norbikaverin,
Fusarium oxysporum
Related subjects:
Life sciences,
Plant science,
Ecology

© 2026 Marian Saniewski, Anna Jarecka Boncela, Elżbieta Węgrzynowicz-Lesiak, Justyna Góraj-Koniarska, Anna Stochmal, Wiesław Oleszek, published by Institute of Soil Science and Plant Cultivation
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 55 (2026): Issue 3 (February 2026)
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