Phytoplasma Interactions in Plant-Vector Systems
Summary
Phytoplasmas are cell-wall-less, obligate bacterial pathogens that colonise the phloem of hundreds of plant species and rely on sap-feeding insects for transmission. Interaction in this tripartite system involves sophisticated molecular dialogues by which phytoplasmas manipulate both plant development and vector physiology to enhance spread. Within the plant host, phytoplasmas secrete effector proteins that interfere with hormone signalling, transcriptional networks and defence responses. These manipulations can induce symptoms such as witches’ broom, virescence, phyllody and altered nutrient flux, creating niches that favour phytoplasma multiplication and vector feeding. In insect vectors—primarily leafhoppers and planthoppers—phytoplasmas enter the gut epithelium, circulate in the haemocoel and invade the salivary glands in a persistent-propagative manner. Specific interactions between phytoplasma membrane proteins and insect receptors determine vector competence and affect bacterial multiplication in the insect. Taken together, these reciprocal interactions underpin disease epidemiology and influence management strategies. Understanding the molecular basis of host-vector colonisation offers opportunities to engineer resistant plants, disrupt transmission or target vector receptors, thereby mitigating the global impact of phytoplasma diseases in agricultural and horticultural systems.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Phytoplasma Interactions in Plant-Vector Systems publication trend
The graph below shows the total number of articles in phytoplasma interactions in plant-vector systems across all publications each year (not limited to Nature Index journals).
Technical terms
Phytoplasma: A wall-less bacterial pathogen that infects plant phloem and is transmitted by sap-feeding insects.
Effector: A secreted pathogen protein that alters host cellular processes to promote infection.
Vector: An organism, typically an insect, that transmits a pathogen between hosts.
Persistent-propagative transmission: A mode of pathogen spread in which the agent replicates within the vector before being transmitted to new hosts.
Phloem-limited: Restricted localisation of a pathogen to the nutrient-transporting tissue of plants.
References
- Jujube witches’ broom phytoplasmas inhibit ZjBRC1-mediated abscisic acid metabolism to induce shoot proliferation. Horticulture Research (2023).
- Natterin-like and legumain insect gut proteins promote the multiplication of a vector-borne bacterial plant pathogen. Microbiological Research (2024).
- Flavescence Dorée Strain-Specific Impact on Phenolic Metabolism Dynamics in Grapevine (Vitis vinifera) throughout the Development of Phytoplasma Infection. Journal of Agricultural and Food Chemistry (2023).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.