ArticleThe New phytologist2021
Insect eggs trigger systemic acquired resistance against a fungal and an oomycete pathogen.
Article in The New phytologist, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 21 citations in OpenAlex.
- Harnessing plant-to-plant signalling via common mycorrhizal networks for enhanced community-level resistance in crops.Journal of experimental botany · 2026Review
- Rhizophagus irregularis modulates neighbour-primed defences in Medicago truncatula against foliar pathogens via common mycelial network-mediated inter-plant signals.Communications biology · 2026Article
- The glutamate receptor-like GLR2.7 modulates insect egg-induced defense responses in Arabidopsis.The New phytologist · 2025Article
- The Key Role of Plant Hormone Signaling Transduction and Flavonoid Biosynthesis Pathways in the Response of Chinese Pine (International journal of molecular sciences · 2024Article
- Plant defensive responses to insect eggs are inducible by general egg-associated elicitors.Scientific reports · 2024Article
- Metabolites and Plant Hormones Related to the Resistance Response to Feeding Stimulation and Leaf Clipping Control in Chinese Pine (Current issues in molecular biology · 2023Article
- Insect egg-induced innate immunity: Who benefits?PLoS pathogens · 2023Article
- Priming of Arabidopsis resistance to herbivory by insect egg deposition depends on the plant's developmental stage.Journal of experimental botany · 2022Article
- The MIK2/SCOOP Signaling System Contributes to Arabidopsis Resistance Against Herbivory by Modulating Jasmonate and Indole Glucosinolate Biosynthesis.Frontiers in plant science · 2022Article
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8 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plants are able to detect insect eggs deposited on leaves. In Arabidopsis, eggs of the butterfly species Pieris brassicae (common name large white) induce plant defenses and activate the salicylic acid (SA) pathway. We previously discovered that oviposition triggers a systemic acquired resistance (SAR) against the bacterial hemibiotroph pathogen Pseudomonas syringae. Here, we show that insect eggs or treatment with egg extract (EE) induce SAR against the fungal necrotroph Botrytis cinerea BMM and the oomycete pathogen Hyaloperonospora arabidopsidis Noco2. This response is abolished in ics1, ald1 and fmo1, indicating that the SA pathway and the N-hydroxypipecolic acid (NHP) pathway are involved. Establishment of EE-induced SAR in distal leaves potentially involves tryptophan-derived metabolites, including camalexin. Indeed, SAR is abolished in the biosynthesis mutants cyp79B2 cyp79B3, cyp71a12 cyp71a13 and pad3-1, and camalexin is toxic to B. cinerea in vitro. This study reveals an interesting mechanism by which lepidopteran eggs interfere with plant-pathogen interactions.
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