GO:0035634 response to stilbenoid: Phytoalexin Signaling, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0035634 response to stilbenoid describes any process by which a cell or organism changes state or activity after exposure to a stilbenoid, a class of hydroxylated stilbene derivatives that act as phytoalexins in plants.
• Stilbenoids such as resveratrol are best known for triggering apoptosis and modulating inflammatory signaling in diverse experimental systems.
• In plants, stilbenoid accumulation is an early, tissue-specific response to wounding and grafting, making it a tractable model for studying rapid metabolic reprogramming.
• Arbuscular mycorrhizal symbiosis stimulates phenylpropanoid biosynthesis genes and stilbenoid production in grapevine leaves during pathogen challenge.
• Stilbenoid compounds can inhibit NF-kB-mediated inflammatory responses in the Drosophila intestine, linking this GO term to conserved innate immune regulation.
• Studying response to stilbenoid requires integrated approaches including metabolomics, transcriptomics, and CRISPR-based perturbation of phenylpropanoid pathway genes.
Description
GO:0035634 response to stilbenoid is a biological process term in the Gene Ontology that captures any change in cellular or organismal state following exposure to a stilbenoid. Stilbenoids are hydroxylated derivatives of stilbene belonging to the phenylpropanoid family, and they are produced as secondary products of heartwood formation in trees where they can act as phytoalexins. This term is therefore central to understanding how plants and other organisms perceive and respond to these bioactive molecules. The importance of this process extends beyond plant biology. Resveratrol, a well-studied stilbenoid, has been shown to modulate apoptosis in mammalian cells, making response to stilbenoid relevant to cancer research and inflammation studies. In Drosophila, stilbenoid compounds inhibit NF-kB-mediated inflammatory responses in the intestine, demonstrating that the response to stilbenoids is evolutionarily conserved. For researchers, GO:0035634 provides a structured framework to annotate genes and pathways involved in stilbenoid perception, signal transduction, and downstream metabolic or transcriptional reprogramming. Understanding this process at the molecular level can inform crop protection strategies, drug discovery, and fundamental cell biology.
response to stilbenoid At A Glance
| GO ID | GO:0035634 |
|---|---|
| GO term | response to stilbenoid |
| Ontology | biological_process |
| Synonym | None listed in QuickGO |
| Definition | Any process that results in a change in state or activity of a cell or an organism as a result of exposure to a stilbenoid. |
| Major function | Mediates cellular and organismal responses to stilbenoid phytoalexins, including gene expression changes, enzyme production, and metabolic reprogramming. |
| Stilbenoid chemistry | Hydroxylated derivatives of stilbene belonging to the phenylpropanoid family, sharing biosynthesis with chalcones. |
| Biological context | Secondary products of heartwood formation in trees; act as phytoalexins in plant defense. |
| Related processes | Phenylpropanoid biosynthesis, phytoalexin response, apoptosis, NF-kB inflammatory signaling. |
What Is GO:0035634?
In our own words, GO:0035634 response to stilbenoid refers to any process that results in a change in the state or activity of a cell or an organism in terms of movement, secretion, enzyme production, gene expression, or other measurable outputs as a result of exposure to a stilbenoid. Stilbenoids are hydroxylated stilbene derivatives that belong to the phenylpropanoid family and share most of their biosynthesis pathway with chalcones. They are secondary products of heartwood formation in trees and can act as phytoalexins, which are antimicrobial compounds produced upon pathogen attack. This GO term encompasses the full spectrum of responses, from immediate signaling events to long-term transcriptional and metabolic changes, and applies to any organism that can perceive stilbenoids.
Why Is response to stilbenoid Important in Cell Biology?
GO:0035634 response to stilbenoid is important because stilbenoids are bioactive molecules with profound effects on both plant and animal cells. In plants, stilbenoid accumulation is an early response to wounding and grafting, and it is stimulated during arbuscular mycorrhizal symbiosis and pathogen infection, making this process a key component of plant defense and stress tolerance. In animals, stilbenoids such as resveratrol influence apoptosis and inflammatory signaling, with demonstrated effects on NF-kB pathways in Drosophila and mammalian systems. Understanding the molecular players and regulatory logic of response to stilbenoid can therefore inform crop improvement, drug development, and basic research into conserved stress-response mechanisms.
• Stilbenoids act as phytoalexins, and response to stilbenoid is central to plant defense against biotic and abiotic stressors.
• Resveratrol, a stilbenoid, modulates apoptosis, making this process relevant to cancer cell biology.
• Stilbenoid compounds inhibit NF-kB-mediated inflammatory responses in the Drosophila intestine, linking this term to innate immunity.
• Tissue-specific stilbenoid accumulation is an early response to wounding and grafting, providing a model for rapid metabolic reprogramming.
• Arbuscular mycorrhizal symbiosis stimulates phenylpropanoid genes and stilbenoid production in grapevine leaves during infection.
• Response to stilbenoid intersects with phenylpropanoid biosynthesis, a major secondary metabolic pathway in plants.
• Stilbenoids can be used as chemical probes to study stress signaling and gene regulation.
• Understanding this process may lead to new strategies for improving plant stress tolerance.
• Stilbenoid-responsive pathways are potential targets for anti-inflammatory and chemopreventive interventions.
• GO:0035634 provides a standardized annotation framework for comparing stilbenoid responses across species.
What Happens During response to stilbenoid?
Perception and Early Signaling
In simple terms: The cell first detects the stilbenoid and triggers a quick alarm.
Upon exposure to a stilbenoid, cells initiate perception events that lead to changes in state or activity. In plants, stilbenoid accumulation itself is an early response to wounding and grafting, indicating that the process begins rapidly after tissue damage. Arbuscular mycorrhizal symbiosis stimulates key genes of the phenylpropanoid biosynthesis pathway and stilbenoid production in grapevine leaves in response to downy mildew and grey mould infection, showing that perception is linked to both symbiotic and pathogenic cues. These early signaling events set the stage for downstream transcriptional and metabolic changes.
Transcriptional Reprogramming
In simple terms: The cell changes which genes are turned on or off.
A hallmark of response to stilbenoid is altered gene expression. Stilbenoids are secondary products of heartwood formation that can act as phytoalexins, and their biosynthesis shares most of its pathway with chalcones. In grapevine, infection triggers the expression of phenylpropanoid biosynthesis genes, leading to stilbenoid production. In Drosophila, stilbenoid compounds inhibit NF-kB-mediated inflammatory responses, which requires changes in gene expression programs. These transcriptional changes are a core component of the GO:0035634 definition, which explicitly includes gene expression as a measurable output.
Metabolic and Enzymatic Outputs
In simple terms: The cell produces enzymes and metabolites in response to the stilbenoid.
Response to stilbenoid often involves enzyme production and metabolic shifts. Stilbenoids are hydroxylated derivatives of stilbene and belong to the phenylpropanoid family, and their biosynthesis is a secondary product of heartwood formation. Tissue-specific stilbenoid accumulation has been revealed by spatial and temporal metabolomics as an early response to wounding and grafting. In grapevine leaves, arbuscular mycorrhizal symbiosis stimulates stilbenoid production, demonstrating that metabolic outputs are a key part of the response. These enzymatic and metabolic changes are captured by the GO term's inclusion of enzyme production and secretion.
Downstream Cellular Outcomes
In simple terms: The response leads to outcomes like cell death, survival, or inflammation control.
The ultimate outcomes of response to stilbenoid vary by organism and context. Resveratrol and apoptosis are closely linked, with resveratrol modulating apoptotic pathways in mammalian cells. In Drosophila, stilbenoid compounds inhibit NF-kB-mediated inflammatory responses in the intestine, linking the response to immune regulation. In plants, the response contributes to stress tolerance against biotic and abiotic stressors. These diverse outcomes illustrate the broad biological scope of GO:0035634.
Tissue-Specific and Temporal Dynamics
In simple terms: The response is not uniform; it depends on the tissue and timing.
Spatial and temporal metabolomics have shown that stilbenoid accumulation is tissue-specific and occurs as an early response to wounding and grafting. This means that response to stilbenoid is not a single uniform event but is dynamically regulated across different plant tissues. Similarly, in grapevine leaves, the response to infection is modulated by arbuscular mycorrhizal symbiosis, adding another layer of context dependence. Researchers studying GO:0035634 must therefore consider tissue type and timing when designing experiments.
Key Genes Involved in GO:0035634 response to stilbenoid
The following genes and proteins are experimentally implicated in response to stilbenoid or in the biosynthesis and signaling of stilbenoids, based on the verified literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| Phenylpropanoid biosynthesis genes (e.g., PAL, C4H, 4CL) | Encode enzymes that produce stilbenoid precursors | Stimulated during arbuscular mycorrhizal symbiosis and pathogen infection in grapevine |
| Stilbene synthase (STS) | Catalyzes the committed step in stilbenoid biosynthesis | Key enzyme for phytoalexin production; target for plant defense engineering |
| Chalcone synthase (CHS) | Shares pathway with stilbenoid biosynthesis | Provides precursors for both chalcones and stilbenoids |
| NF-kB pathway components | Mediate inflammatory signaling inhibited by stilbenoids | Studied in Drosophila intestine to link stilbenoids to innate immunity |
| Apoptosis regulators (e.g., Bcl-2 family) | Control cell death in response to resveratrol | Resveratrol and apoptosis are mechanistically linked in mammalian cells |
| DARTS target proteins | Bind stilbenoids and other small molecules | Drug affinity responsive target stability identifies direct targets |
| Probiotic-drug conjugate components | Deliver drugs in a site-specific manner | Relevant to stilbenoid-based therapeutic delivery |
| Nanoliposomal drug carriers | Encapsulate dual drugs for chemotherapy | Model for stilbenoid combination therapy |
| Wound-response genes | Trigger early stilbenoid accumulation | Tissue-specific metabolomics reveals early response to wounding |
| Grafting-responsive genes | Modulate stilbenoid production after grafting | Spatial and temporal metabolomics of grafting response |
| Mycorrhiza-responsive genes | Stimulate phenylpropanoid pathway | Arbuscular mycorrhizal symbiosis in grapevine |
| Downy mildew defense genes | Respond to pathogen infection | Stilbenoid production in grapevine leaves |
| Grey mould defense genes | Respond to fungal infection | Stilbenoid production in grapevine leaves |
| Stress tolerance genes | Improve plant resilience | Stilbenes improve plant stress tolerance |
| Inflammatory response genes | Regulate NF-kB signaling | Stilbenoids inhibit NF-kB in Drosophila |
| Apoptotic signaling genes | Execute cell death | Resveratrol modulates apoptosis |
| Drug target proteins | Bind stilbenoids with high affinity | Identified by DARTS |
| Drug delivery system components | Enable targeted release | Probiotic-drug conjugates for ulcerative colitis |
How Is response to stilbenoid Regulated?
Response to stilbenoid is regulated at multiple levels. In plants, the process is stimulated by arbuscular mycorrhizal symbiosis, which activates key genes of the phenylpropanoid biosynthesis pathway and leads to stilbenoid production in grapevine leaves during infection. Tissue-specific and temporal regulation is evident from spatial metabolomics showing that stilbenoid accumulation is an early response to wounding and grafting. In animals, stilbenoids such as resveratrol regulate apoptosis and NF-kB-mediated inflammatory responses, indicating that the response is integrated with core signaling networks. The DARTS method has been used to identify direct protein targets of stilbenoids, suggesting that regulation may involve physical binding to specific proteins. Additionally, stilbenoid-based drug delivery systems, such as probiotic-drug conjugates and nanoliposomal formulations, are being developed to control the timing and location of exposure, which in turn regulates the response.
response to stilbenoid and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| Apoptosis regulators | Cancer cell death | Resveratrol-treated cancer cell lines |
| NF-kB pathway components | Inflammatory bowel disease | Drosophila intestine inflammation model |
| Phenylpropanoid biosynthesis genes | Plant pathogen susceptibility | Grapevine leaves infected with downy mildew |
| Stilbene synthase | Plant stress tolerance | Wounding and grafting models in plants |
| Drug delivery targets | Ulcerative colitis | Probiotic-drug conjugate system |
Cancer and Apoptosis
Resveratrol, a stilbenoid, has been extensively studied for its ability to modulate apoptosis in cancer cells. This links GO:0035634 response to stilbenoid to cancer biology, where stilbenoids may influence cell death pathways. Nanoliposomal dual drug delivery systems have been explored for head and neck squamous cell carcinoma, providing a model for stilbenoid-based combination therapy.
Inflammatory Diseases
Stilbenoid compounds inhibit NF-kB-mediated inflammatory responses in the Drosophila intestine, demonstrating a conserved anti-inflammatory mechanism. Probiotic-drug conjugates have been developed for synchronized site-specific colonization and on-demand drug release against ulcerative colitis and its complications, highlighting the therapeutic potential of stilbenoid-related delivery strategies.
Plant Stress and Crop Protection
Stilbenes improve plant stress tolerance, and response to stilbenoid is central to plant defense mechanisms against biotic and abiotic stressors. In grapevine, stilbenoid production is stimulated by arbuscular mycorrhizal symbiosis and pathogen infection, suggesting that manipulating this response could enhance crop resilience. Tissue-specific stilbenoid accumulation after wounding or grafting further underscores its role in plant health.
From response to stilbenoid-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does a candidate gene mediate stilbenoid-induced apoptosis? | CRISPR knockout in mammalian cancer cell lines |
| Does a point mutation in a phenylpropanoid gene alter stilbenoid production? | CRISPR point mutation in grapevine or model plants |
| Can a tagged stilbenoid-responsive protein be tracked in vivo? | Knock-in of fluorescent tag in plant or animal cells |
| Does overexpression of stilbene synthase enhance stress tolerance? | CRISPR overexpression in crop plants |
| Which proteins directly bind stilbenoids? | DARTS combined with CRISPR knockout libraries |
| Can stilbenoid delivery be spatially controlled? | Probiotic-drug conjugate or nanoliposomal models |
How to Study the response to stilbenoid Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Spatial metabolomics | Tissue-specific stilbenoid accumulation | Wounding and grafting response in plants |
| RNA-seq | Changes in gene expression | Phenylpropanoid pathway activation in grapevine |
| DARTS | Direct protein targets of stilbenoids | Target identification for small molecules |
| Apoptosis assays | Cell death induction | Resveratrol response in cancer cells |
| NF-kB reporter assays | Inflammatory signaling activity | Drosophila intestine inflammation model |
| Nanoliposomal drug delivery | Drug release and efficacy | Head and neck squamous cell carcinoma |
| Probiotic-drug conjugates | Site-specific drug release | Ulcerative colitis treatment |
| CRISPR knockout screens | Gene requirement for stilbenoid response | Functional genomics of response to stilbenoid |
Metabolomics and Spatial Profiling
Spatial and temporal metabolomics have been used to reveal tissue-specific stilbenoid accumulation as an early response to wounding and grafting. This approach allows researchers to map where and when stilbenoids are produced, providing direct evidence for GO:0035634 annotation.
Transcriptomics and Gene Expression Analysis
RNA-seq and related transcriptomic methods can identify genes whose expression changes upon stilbenoid exposure. In grapevine, arbuscular mycorrhizal symbiosis stimulates key genes of the phenylpropanoid biosynthesis pathway and stilbenoid production in response to infection, which can be monitored by transcriptomics.
Target Identification with DARTS
Drug affinity responsive target stability (DARTS) is a method to identify direct protein targets of small molecules such as stilbenoids. This technique can reveal the molecular initiating events of response to stilbenoid.
In Vivo Inflammatory and Apoptosis Assays
Drosophila intestine models have been used to show that stilbenoid compounds inhibit NF-kB-mediated inflammatory responses. Apoptosis assays in mammalian cells have linked resveratrol to cell death pathways. These functional assays are essential for validating the downstream consequences of response to stilbenoid.
How CRISPR Can Be Used to Study GO:0035634 response to stilbenoid
Knockout
CRISPR knockout can be used to delete candidate genes involved in response to stilbenoid, such as phenylpropanoid biosynthesis genes or NF-kB pathway components, to test whether they are required for the response. For example, knocking out a stilbene synthase gene in a plant model would reveal its necessity for stilbenoid accumulation after wounding.
Point Mutation
CRISPR point mutation can introduce specific amino acid changes in enzymes like stilbene synthase to dissect catalytic residues or regulatory phosphorylation sites. This approach is valuable for understanding how subtle genetic changes affect response to stilbenoid.
Knock-in
Knock-in of fluorescent or affinity tags into endogenous loci allows real-time tracking of proteins that respond to stilbenoids. This can be applied to plant or animal models to visualize the dynamics of response to stilbenoid.
Overexpression
CRISPR-mediated overexpression of genes such as stilbene synthase or phenylpropanoid pathway regulators can enhance stilbenoid production and stress tolerance, providing a gain-of-function approach to study response to stilbenoid.
How EDITGENE Supports response to stilbenoid Research
Researchers studying response to stilbenoid-related genes often need to determine whether a candidate gene is causally involved in the response or merely correlated with it. CRISPR-based perturbation offers a precise way to test causality, and EDITGENE provides a comprehensive suite of services to support such studies.
Contact EDITGENE today to design your custom CRISPR model for response to stilbenoid research.
Frequently Asked Questions About response to stilbenoid
What is GO:0035634 response to stilbenoid?
GO:0035634 is a Gene Ontology biological process term describing any process that results in a change in state or activity of a cell or organism as a result of exposure to a stilbenoid, a class of hydroxylated stilbene derivatives that act as phytoalexins.
What are stilbenoids?
Stilbenoids are hydroxylated derivatives of stilbene that belong to the phenylpropanoid family and share most of their biosynthesis pathway with chalcones; they are secondary products of heartwood formation in trees and can act as phytoalexins.
What genes are involved in response to stilbenoid?
Genes involved include phenylpropanoid biosynthesis genes, stilbene synthase, chalcone synthase, NF-kB pathway components, and apoptosis regulators, as shown in grapevine, Drosophila, and mammalian studies.
How is response to stilbenoid studied?
It is studied using spatial and temporal metabolomics, transcriptomics, DARTS target identification, apoptosis assays, and NF-kB reporter assays.
Why is response to stilbenoid important in plants?
It is important because stilbenoids act as phytoalexins and improve plant stress tolerance against biotic and abiotic stressors, and their accumulation is an early response to wounding and infection.
Does resveratrol trigger response to stilbenoid?
Yes, resveratrol is a stilbenoid that modulates apoptosis in mammalian cells, which is a downstream outcome of response to stilbenoid.
Can stilbenoids inhibit inflammation?
Yes, stilbenoid compounds inhibit NF-kB-mediated inflammatory responses in the Drosophila intestine, linking response to stilbenoid to innate immune regulation.
What is the role of arbuscular mycorrhizal symbiosis in response to stilbenoid?
Arbuscular mycorrhizal symbiosis stimulates key genes of the phenylpropanoid biosynthesis pathway and stilbenoid production in grapevine leaves in response to downy mildew and grey mould infection.
How can CRISPR be used to study response to stilbenoid?
CRISPR can create knockouts, point mutations, knock-ins, and overexpression models to test the causal role of specific genes in response to stilbenoid.
What services does EDITGENE offer for response to stilbenoid research?
EDITGENE offers CRISPR knockout, point mutation, knock-in, overexpression, library screening, and bioinformatics services to support functional studies of response to stilbenoid.
Conclusion
GO:0035634 response to stilbenoid is a biologically significant process that spans plant defense, secondary metabolism, apoptosis, and inflammation. The verified literature demonstrates that stilbenoids such as resveratrol and related compounds trigger diverse cellular responses, from tissue-specific accumulation after wounding to NF-kB inhibition in Drosophila and apoptosis modulation in mammalian cells. Understanding the genes and regulatory mechanisms underlying this response can inform crop improvement and therapeutic development. CRISPR-based models and integrated omics approaches provide powerful tools to dissect this process, and EDITGENE offers comprehensive services to accelerate such research.
References
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- 3. Lin HY et al.. 2011. Resveratrol and apoptosis.. Ann N Y Acad Sci 1215:79-88 PMID: 21261644
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- 7. Bruisson S et al.. 2016. Arbuscular mycorrhizal symbiosis stimulates key genes of the phenylpropanoid biosynthesis and stilbenoid production in grapevine leaves in response to downy mildew and grey mould infection.. Phytochemistry 131:92-99 PMID: 27623505
- 8. Aalto AL et al.. 2023. Stilbenoid compounds inhibit NF-κB-mediated inflammatory responses in the Drosophila intestine.. Front Immunol 14:1253805 PMID: 37809071
