Mixed DAMP/MAMP oligosaccharides promote both growth and defense against fungal pathogens of cucumber
Copyright © 2025. Published by Elsevier B.V.
| Veröffentlicht in: | Plant science : an international journal of experimental plant biology. - 1985. - (2025) vom: 23. Mai, Seite 112578 |
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| Weitere Verfasser: | , , , , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2025
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| Zugriff auf das übergeordnete Werk: | Plant science : an international journal of experimental plant biology |
| Schlagworte: | Journal Article Anthracnose Biostimulant Cucumber Damage-associated molecular patterns Elicitors Microbe-associated molecular patterns Oligosaccharides Powdery mildew |
| Zusammenfassung: | Copyright © 2025. Published by Elsevier B.V. Plants recognize a variety of environmental molecules, thereby triggering appropriate responses to biotic or abiotic stresses. Substances containing microbes-associated molecular patterns (MAMPs) and damage-associated molecular patterns (DAMPs) are representative inducers of pathogen resistance and damage repair, thus treatment of healthy plants with such substances can pre-activate plant immunity and cell repair functions. In this study, the effects of DAMP/MAMP oligosaccharides mixture (Oligo-Mix) derived from plant cell wall (cello-oligosaccharide and xylo-oligosaccharide), and fungal cell wall (chitin-oligosaccharide) were examined in cucumber. Treatment of cucumber with Oligo-Mix promoted root germination and plant growth, along with increased chlorophyll contents in the leaves. Oligo-Mix treatment also induced typical defense responses such as MAP kinase activation and callose deposition in leaves. Pretreatment of Oligo-Mix enhanced disease resistance of cucumber leaves against pathogenic fungi Podosphaera xanthii (powdery mildew) and Colletotrichum orbiculare (anthracnose). Oligo-Mix treatment increased the induction of hypersensitive cell death around the infection site of pathogens, which inhibited further infection and the conidial formation of pathogens on the cucumber leaves. RNA-seq analysis revealed that Oligo-Mix treatment upregulated genes associated with plant structural reinforcement, responses to abiotic stresses and plant defense. These results suggested that Oligo-Mix has beneficial effects on growth and disease resistance in cucumber, making it a promising biostimulant for agricultural application |
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| Beschreibung: | Date Revised 27.05.2025 published: Print-Electronic UpdateOf: bioRxiv. 2024 Dec 27:2024.12.27.630494. doi: 10.1101/2024.12.27.630494.. - PMID 39763901 Citation Status Publisher |
| ISSN: | 1873-2259 |
| DOI: | 10.1016/j.plantsci.2025.112578 |