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Fungal Plant Pathogen Control
Research Guide
What is Fungal Plant Pathogen Control?
Fungal Plant Pathogen Control is the management of fungal diseases in plants, focusing on strategies to counteract fungicide resistance mechanisms in pathogens such as Botrytis cinerea through molecular understanding and targeted fungicide applications.
This field examines the evolution, molecular mechanisms, and agricultural management of fungicide resistance in plant pathogens, with 42,860 works documented. Botrytis cinerea, responsible for grey mould disease, affects over 200 crop hosts worldwide and exhibits resistance to multiple fungicide classes including strobilurins and succinate dehydrogenase inhibitors. Strobilurin fungicides, derived from natural products, provide broad-spectrum control but face challenges from pathogen genetic plasticity.
Topic Hierarchy
Research Sub-Topics
Molecular Mechanisms of Fungicide Resistance
Researchers identify target-site mutations, efflux pumps, and metabolic detoxification in resistant strains. Genomic and proteomic studies elucidate resistance evolution pathways.
Fungicide Resistance Management Strategies
Studies develop anti-resistance tactics like product rotation, mixtures, and IPM integration. Field trials evaluate durability of resistance prevention programs.
Strobilurin Fungicide Resistance in Botrytis cinerea
Research focuses on QoI resistance mutations (G143A, F129L) in cytochrome b of grey mold. Monitoring tracks resistance frequency and fitness costs.
Succinate Dehydrogenase Inhibitor Resistance
Investigations characterize SDHI mutations (SdhB, C, D) conferring multi-site resistance. Structure-activity modeling guides new SDHI development.
Evolution of Resistance in Fungal Plant Pathogens
Population genetics models selection pressures, migration, and mating driving resistance spread. Quantitative genetics assess inheritance and stability.
Why It Matters
Fungal Plant Pathogen Control addresses critical losses in agriculture from pathogens like Botrytis cinerea, which causes grey mould on over 200 crop hosts worldwide. "Botrytis cinerea: the cause of grey mould disease" (Williamson et al., 2007) details how this necrotrophic pathogen's genetic plasticity leads to fungicide failures across classes, necessitating integrated management. Strobilurin fungicides, as reviewed in "The strobilurin fungicides" (Bartlett et al., 2002), deliver outstanding benefits in crops globally but require resistance monitoring. Effective control preserves yields, with stability models like those in "Stability Parameters for Comparing Varieties" (Eberhart and Russell, 1966) aiding variety selection under disease pressure. Dose-response analysis from "Log-Logistic Analysis of Herbicide Dose-Response Relationships" (Seefeldt et al., 1995) supports precise fungicide application to delay resistance.
Reading Guide
Where to Start
"Botrytis cinerea: the cause of grey mould disease" by Williamson et al. (2007), as it provides a foundational overview of the pathogen's biology, host range, and resistance challenges central to the field.
Key Papers Explained
"Botrytis cinerea: the cause of grey mould disease" (Williamson et al., 2007) establishes the pathogen's necrotrophic lifestyle and fungicide resistance issues, which "The strobilurin fungicides" (Bartlett et al., 2002) addresses through Qo inhibitor mechanisms and management. "Stability Parameters for Comparing Varieties" (Eberhart and Russell, 1966) complements by modeling variety performance under variable disease environments. "Log-Logistic Analysis of Herbicide Dose-Response Relationships" (Seefeldt et al., 1995) builds on these by quantifying resistance via dose-responses, enabling precise monitoring.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Research emphasizes resistance evolution in Botrytis cinerea to strobilurins, SDHIs, and Qo inhibitors, with management strategies rotating fungicide classes. Molecular mechanisms remain a focus, as genetic plasticity drives failures noted in core papers. No recent preprints or news indicate ongoing refinements to existing approaches.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Stability Parameters for Comparing Varieties<sup>1</sup> | 1966 | Crop Science | 3.6K | ✓ |
| 2 | TOR, a Central Controller of Cell Growth | 2000 | Cell | 1.9K | ✓ |
| 3 | Structural Mechanism for STI-571 Inhibition of Abelson Tyrosin... | 2000 | Science | 1.8K | ✕ |
| 4 | Rapamycin (AY-22,989), a new antifungal antibiotic. I. Taxonom... | 1975 | The Journal of Antibio... | 1.6K | ✓ |
| 5 | The strobilurin fungicides | 2002 | Pest Management Science | 1.6K | ✕ |
| 6 | <i>Botrytis cinerea</i> : the cause of grey mould disease | 2007 | Molecular Plant Pathology | 1.6K | ✕ |
| 7 | Habilitationsschrift | 2009 | Mycoses | 1.4K | ✕ |
| 8 | Coordinated plant defense responses in <i>Arabidopsis</i> reve... | 2000 | Proceedings of the Nat... | 1.4K | ✓ |
| 9 | Log-Logistic Analysis of Herbicide Dose-Response Relationships | 1995 | Weed Technology | 1.3K | ✕ |
| 10 | The tor pathway: a target for cancer therapy | 2004 | Nature reviews. Cancer | 1.3K | ✕ |
Frequently Asked Questions
What is Botrytis cinerea?
Botrytis cinerea is an airborne necrotrophic plant pathogen causing grey mould disease on over 200 crop hosts worldwide. Its genetic plasticity enables resistance to many fungicide classes. Control relies on fungicides despite frequent failures due to this adaptability.
How do strobilurin fungicides work?
Strobilurin fungicides, inspired by natural products, inhibit fungal respiration at the Qo site. They provide broad-spectrum protection across crops. "The strobilurin fungicides" (Bartlett et al., 2002) highlights their global use despite resistance risks.
What are key molecular mechanisms of fungicide resistance?
Resistance in pathogens like Botrytis cinerea arises from genetic changes affecting fungicide targets such as Qo inhibitors and succinate dehydrogenase. These mechanisms evolve rapidly in agricultural settings. Management requires monitoring and rotation of fungicide classes.
How is fungicide dose-response analyzed?
Log-logistic models describe herbicide and fungicide dose-response curves for resistance assessment. "Log-Logistic Analysis of Herbicide Dose-Response Relationships" (Seefeldt et al., 1995) standardizes this for weed and pathogen studies. It quantifies resistance levels without data transformation issues.
What role does variety stability play in pathogen control?
Stability parameters from "Stability Parameters for Comparing Varieties" (Eberhart and Russell, 1966) evaluate crop performance across environments, including disease-prone ones. The model Y_ij = μ_i + β_i I_j + δ_ij measures mean yield, regression on environment, and deviation. This aids selection of resistant varieties against fungal pathogens.
What are the current challenges in managing Botrytis cinerea?
Botrytis cinerea resists multiple fungicides due to high genetic variability. "Botrytis cinerea: the cause of grey mould disease" (Williamson et al., 2007) notes failures in phenylamides, strobilurins, and others. Integrated strategies combining fungicides and cultural practices are essential.
Open Research Questions
- ? How do specific mutations in Botrytis cinerea confer multi-class fungicide resistance?
- ? What evolutionary models best predict resistance spread in fungal plant pathogens under fungicide selection?
- ? Which integrated management practices most effectively delay resistance to strobilurins and SDHIs?
- ? How can stability parameters be adapted to quantify fungal pathogen tolerance in crop varieties?
- ? What molecular targets beyond Qo inhibitors offer new avenues for fungicide development against necrotrophs?
Recent Trends
The field documents 42,860 works on fungicide resistance management, centered on Botrytis cinerea and classes like strobilurins.
No growth rate data or recent preprints/news available, sustaining emphasis on molecular mechanisms and strategies from papers like "The strobilurin fungicides" (Bartlett et al., 2002) and "Botrytis cinerea: the cause of grey mould disease" (Williamson et al., 2007).
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