Plant Pathology
Summary
Plant pathology is the scientific study of plant disease, encompassing the identification of causal agents, the mechanisms by which they infect and damage their hosts, and the development of effective means to prevent and control disease. It integrates knowledge of microbial and nematode biology, plant immune responses, host genetics, environmental factors and agronomic practices to safeguard crop health. Pathogens—including fungi, bacteria, viruses, oomycetes and parasitic plants—interact with hosts at molecular, cellular and community levels, often triggering complex defence networks that involve pattern‐recognition receptors, hormone signalling and both local and systemic immune responses. Climate change, global trade and intensive monoculture have accelerated pathogen spread and the emergence of new disease threats, making integrated and sustainable management essential. Contemporary plant pathology combines traditional measures—crop rotation, resistant varieties, cultural sanitation and judicious use of agrochemicals—with novel tools such as high‐throughput molecular diagnostics, remote sensing, gene editing and biocontrol to maintain yields, reduce losses and support global food security.
Research from Nature Portfolio
A global‐temporal study of soybean resistance genes has revealed a marked decline in the effectiveness of key single‐gene (Rps) loci against the oomycete Phytophthora sojae. Analysis of over 5 000 pathogen isolates collected across four continents over three decades shows that classic Rps1a, Rps1c and Rps1k alleles are now largely overcome in major production regions, underscoring the need to deploy novel Rps sources such as Rps3a, Rps6 and Rps11 and to integrate quantitative resistance loci for more durable protection.
Comparative transcriptomics in soybean challenged with the fungal stem canker pathogen Diaporthe caulivora has uncovered a coordinated defence repertoire in resistant genotypes. Resistance is associated with early activation of cell‐wall polysaccharide remodelling, phenylpropanoid and flavonoid biosynthesis, and salicylic and jasmonic acid pathways, together with enhanced expression of NBS‐LRR immune receptors and defence‐related transcription factors. These profiles highlight candidate genes for marker‐assisted selection and breeding of more resilient cultivars.
Plant Pathology publication trend
The graph below shows the total number of articles in plant pathology across all publications each year (not limited to Nature Index journals).
Technical terms
Pattern‐recognition receptor (PRR): A cell‐surface protein that binds conserved microbial molecules (PAMPs) to trigger basal immune responses.
NBS‐LRR (NLR) receptor: An intracellular immune sensor that recognises pathogen effectors and initiates strong defence reactions, often involving programmed cell death.
Hypersensitive response (HR): A rapid, localised cell death at infection sites that restricts pathogen spread.
Reactive oxygen species (ROS): Highly reactive molecules produced during immune activation that contribute to pathogen killing and signal propagation.
Effector: A pathogen‐secreted molecule that manipulates host cellular processes to promote infection or suppress immunity.
References
- A global-temporal analysis on Phytophthora sojae resistance-gene efficacy. Nature Communications (2023).
- Comparative analysis of soybean transcriptional profiles reveals defense mechanisms involved in resistance against Diaporthe caulivora. Scientific Reports (2023).
- Single-molecule analysis reveals the phosphorylation of FLS2 governs its spatiotemporal dynamics and immunity. eLife (2024).
- SlWRKY30 and SlWRKY81 synergistically modulate tomato immunity to Ralstonia solanacearum by directly regulating SlPR-STH2. Horticulture Research (2023).
- Involvement of CsWRKY70 in salicylic acid-induced citrus fruit resistance against Penicillium digitatum. Horticulture Research (2020).
About these summaries
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