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Related Experiment Video

Updated: Jun 30, 2026

Direct Agroinoculation of Maize Seedlings by Injection with Recombinant Foxtail Mosaic Virus and Sugarcane Mosaic Virus Infectious Clones

Direct Agroinoculation of Maize Seedlings by Injection with Recombinant Foxtail Mosaic Virus and Sugarcane Mosaic Virus Infectious Clones

Published on: February 27, 2021

Virus infection improves drought tolerance.

Ping Xu¹, Fang Chen, Jonathan P Mannas

¹The S. R. Noble Foundation, Ardmore, OK 73401, USA.

The New Phytologist

|October 1, 2008

Summary

This summary is machine-generated.

Plant viruses can help crops survive drought and freezing stress. This study found that virus infection increases plant osmoprotectants and antioxidants, improving stress tolerance.

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Published on: April 12, 2017

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Last Updated: Jun 30, 2026

Direct Agroinoculation of Maize Seedlings by Injection with Recombinant Foxtail Mosaic Virus and Sugarcane Mosaic Virus Infectious Clones

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Published on: February 27, 2021

Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm

Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm

Published on: April 12, 2017

Area of Science:

Plant pathology
Virology
Plant physiology

Background:

Plant viruses are typically studied as pathogens causing agricultural crop diseases.
However, viruses can also act as obligate intracellular symbionts, potentially offering benefits to their hosts.

Purpose of the Study:

To investigate if plant RNA virus infections can enhance host survival under abiotic stress conditions.
To explore the physiological and metabolic changes associated with virus-induced stress tolerance.

Main Methods:

Inoculation of various plant species with four different RNA viruses: Brome mosaic virus (BMV), Cucumber mosaic virus (CMV), Tobacco mosaic virus, and Tobacco rattle virus.
Subjecting inoculated and mock-inoculated plants to drought stress by withholding water.
Utilizing metabolite profiling to compare biochemical changes between virus-infected and control plants before and after stress exposure.

Main Results:

Virus infection consistently delayed the onset of drought symptoms across all tested plant-virus combinations.
Plants infected with CMV showed enhanced tolerance to freezing stress.
Metabolite profiling revealed increased levels of osmoprotectants and antioxidants in BMV-infected rice and CMV-infected beet plants, both before and after drought stress.

Conclusions:

Plant RNA virus infections can improve host tolerance to abiotic stresses like drought and freezing.
This enhanced tolerance is associated with an increase in key osmoprotectant and antioxidant compounds within the host plant.
Viruses may play a beneficial role in plant adaptation to environmental challenges.