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Subviral Agents

Subviral Agents

Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...

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Related Experiment Video

Updated: Nov 15, 2025

Microwave Assisted Rapid Diagnosis of Plant Virus Diseases by Transmission Electron Microscopy

Microwave Assisted Rapid Diagnosis of Plant Virus Diseases by Transmission Electron Microscopy

Published on: October 14, 2011

Imaging Techniques to Study Plant Virus Replication and Vertical Transmission.

María Amelia Sánchez Pina¹, Cristina Gómez-Aix², Eduardo Méndez-López¹

¹Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Departamento de Biología del Estrés y Patología Vegetal, Grupo de Patología Vegetal, 30100 Murcia, Spain.

|March 6, 2021

Summary

Imaging techniques reveal how plant viruses hijack cell metabolism for infection. This review highlights microscopy advances in understanding virus replication and transmission.

Keywords:

correlative microscopy electron microscopy imaging immunocytochemistry in situ hybridization light microscopy plant virus–host interactions viral life cycle viral replication viral transmission

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Last Updated: Nov 15, 2025

Microwave Assisted Rapid Diagnosis of Plant Virus Diseases by Transmission Electron Microscopy

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Published on: March 1, 2012

Area of Science:

Plant Science
Virology
Cell Biology

Background:

Plant viruses are obligate parasites dependent on host cell machinery.
Understanding virus-host interactions is crucial for controlling plant diseases.
Imaging techniques have historically been vital for studying viral infections.

Purpose of the Study:

To review the application of various microscopy techniques in plant virology.
To highlight recent advancements in visualizing plant virus infection cycles.
To illustrate the role of imaging in studying virus replication and transmission.

Main Methods:

Review of established imaging techniques: light microscopy, confocal laser scanning microscopy, scanning electron microscopy, and transmission electron microscopy.
Analysis of recent studies utilizing these methods in plant virology.
Case examples focusing on plant virus replication and vertical transmission.

Main Results:

Microscopy provides critical insights into the subcellular events of plant virus infection.
Confocal and electron microscopy offer high resolution for visualizing virus-host interactions.
Imaging data has advanced understanding of virus replication strategies and transmission pathways.

Conclusions:

Imaging techniques are indispensable tools for dissecting plant virus biology.
Continued development and application of microscopy will further elucidate plant virus infection mechanisms.
These insights are fundamental for developing effective strategies against plant viral diseases.