Volume 137, Issue 8 e202416079
Forschungsartikel

From Natural Product Derivative to Hexagonal Prism Supermolecule: Potent Biofilm Disintegration, Enhanced Foliar Affinity, and Effective Management of Tomato Bacterial Canker

Xue Chen

Xue Chen

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

These authors contributed equally to this work.

Contribution: Data curation (lead), Visualization (lead), Writing - original draft (lead)

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Run Yang

Run Yang

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

These authors contributed equally to this work.

Contribution: Data curation (equal), Software (equal), Visualization (equal)

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Prof. Dr. Kongjun Liu

Corresponding Author

Prof. Dr. Kongjun Liu

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000 China

Contribution: Formal analysis (lead), Validation (lead), Writing - review & editing (lead)

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Min Liu

Min Liu

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

Contribution: Data curation (supporting), Visualization (supporting)

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Qingchuan Shi

Qingchuan Shi

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

Contribution: Data curation (supporting)

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Jinghan Yang

Jinghan Yang

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

Contribution: Visualization (supporting)

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Prof. Gefei Hao

Prof. Gefei Hao

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

Contribution: Resources (equal)

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Prof. Dr. Laixin Luo

Prof. Dr. Laixin Luo

Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, China Agricultural University, Beijing, 100193 China

Contribution: Project administration (supporting), Resources (equal)

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Prof. Dr. Fengpei Du

Prof. Dr. Fengpei Du

Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193 China

Contribution: Resources (supporting)

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Prof. Dr. Peiyi Wang

Corresponding Author

Prof. Dr. Peiyi Wang

State National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025 China

Contribution: Conceptualization (lead), Formal analysis (lead), Funding acquisition (lead), ​Investigation (lead), Methodology (lead), Project administration (lead), Resources (lead), Validation (lead), Writing - review & editing (lead)

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First published: 17 January 2025

Abstract

Clavibacter michiganensis (Cmm), designated as an A2 quarantine pest by the European and Mediterranean Plant Protection Organization (EPPO), incites bacterial canker of tomato, which presently eludes rapid and effective control methodologies. Dense biofilms formed by Cmm shield internal bacteria from host immune defenses and obstruct the ingress of agrochemicals. Even when agrochemicals disintegrate biofilms, splashing and bouncing during application disperse active ingredients away from target sites. Herein, we present a supramolecular strategy to fabricate a hexagonal prism-shaped material, BPGA@CB[8], assembled from an 18β-glycyrrhetinic acid derivative (PBGA) and host molecule—cucurbit[8]uril (CB[8]) via host–guest recognition. This positively charged material manifests multifaceted functionalities, notably the ability to surmount biofilm barriers, annihilate the encased pathogenic bacteria, and enhance foliar affinity of droplets. The strong in vitro potency and effective deposition of BPGA@CB[8] foster optimal conditions for robust in vivo efficacy, demonstrating superior protective and curative activities (56.9 %/53.4 %) against canker of tomato at a low-dose of 100 μg⋅mL−1 compared to BPGA (44.6 %/42.2 %), kasugamycin (30.1 %/28.4 %), and thiodiazole copper (35.4 %/31.0 %). This supramolecular material, based on natural product derivatives, provides a potent treatment for high-risk canker of tomato, and exemplifies the utility of supramolecular strategies in optimizing the attributes of natural products for managing plant bacterial diseases.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.