Plant viruses trick both crops and insects to spread
Wu K, Yang W, Li Z
Plant Pathology
The leafhoppers and planthoppers you spot on garden vegetables can carry viruses that reprogram the insect's feeding behavior itself, turning the bug into a more efficient delivery system for infecting your plants.
Some plant viruses don't just infect plants, they also live and multiply inside the insects that spread them, like a virus that thrives in two completely different bodies. This review pulls together what scientists have learned about how these viruses take over cell machinery to copy themselves, sneak past the plant's and insect's immune systems, and even change how the insect behaves so it feeds longer and spreads the virus further. Understanding these tricks could help researchers design better ways to protect crops from this kind of disease.
Key Findings
Plant rhabdoviruses complete a dual-host cycle, replicating inside both plant cells and insect vector cells rather than just passing through the insect mechanically
The viruses hijack specific host factors and subcellular structures to support their replication and movement within cells
Viruses counter host immunity through multiple channels including RNA silencing suppression, manipulation of plant hormone signaling, and interference with autophagy, while also altering insect feeding behavior and physiology to enable persistent transmission
chevron_right Technical Summary
Scientists reviewed how a family of plant-infecting viruses pulls off a two-host lifestyle, hijacking cell machinery in both plants and the insects that carry them, while dodging the immune defenses of each.
Abstract Preview
Original paper
Molecular dialogues in plant rhabdovirus-host interactions.
Plant rhabdoviruses comprise a group of economically important pathogens that exhibit a complex dual-host infection cycle across plants and insect vectors, relying on exquisitely adapted cross-king...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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