Rice stripe mosaic virus hijacks rice heading‐related gene to promote the overwintering of its insect vector

ABSTRACT Rice stripe mosaic virus (RSMV) is an emerging pathogen which significantly reduces rice yields in the southern region of China. It is transmitted by the leafhopper Recilia dorsalis, which overwinters in rice fields. Our field investigations revealed that RSMV infection causes delayed rice...

Full description

Saved in:
Bibliographic Details
Published in:Journal of integrative plant biology 2024-09, Vol.66 (9), p.2000-2016
Main Authors: Chen, Siping, Zhong, Xinyi, Wang, Zhiyi, Chen, Biao, Huang, Xiuqin, Xu, Sipei, Yang, Xin, Zhou, Guohui, Zhang, Tong
Format: Article
Language:English
Subjects:
Crop yield
Disease transmission
Field investigations
Field tests
HAF1
heading
Insects
leafhoppers
Molecular interactions
Overwintering
Plant diseases
Plant layout
Plant viruses
Rice fields
RSMV
Ubiquitin-protein ligase
Ubiquitination
Viruses
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:ABSTRACT Rice stripe mosaic virus (RSMV) is an emerging pathogen which significantly reduces rice yields in the southern region of China. It is transmitted by the leafhopper Recilia dorsalis, which overwinters in rice fields. Our field investigations revealed that RSMV infection causes delayed rice heading, resulting in a large number of green diseased plants remaining in winter rice fields. This creates a favorable environment for leafhoppers and viruses to overwinter, potentially contributing to the rapid spread and epidemic of the disease. Next, we explored the mechanism by which RSMV manipulates the developmental processes of the rice plant. A rice heading‐related E3 ubiquitin ligase, Heading date Associated Factor 1 (HAF1), was found to be hijacked by the RSMV‐encoded P6. The impairment of HAF1 function affects the ubiquitination and degradation of downstream proteins, HEADING DATE 1 and EARLY FLOWERING3, leading to a delay in rice heading. Our results provide new insights into the development regulation‐based molecular interactions between virus and plant, and highlights the importance of understanding virus‐vector‐plant tripartite interactions for effective disease management strategies. Rice stripe mosaic virus infection delays rice heading by manipulating the expression of a heading‐related E3 ubiquitin ligase gene, creating a conducive environment for the overwintering of the insect vector (leafhoppers) and the viruses.
ISSN:1672-9072
1744-7909
1744-7909
DOI:10.1111/jipb.13722