The phytohormone jasmonic acid is involved in rice resistance to Southern rice black-streaked dwarf virus

The phytohormone jasmonic acid is involved in rice resistance to Southern rice black-streaked dwarf virus

Viruses are significant pathogens causing severe plant infections and crop losses globally. The resistance mechanisms of rice to viral diseases, particularly Southern rice black-streaked dwarf virus (SRBSDV), remain poorly understood. In this study, we assessed SRBSDV susceptibility in 20 Xian/indic...

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Bibliographic Details
Main Authors: Chaorui Huang, Qing Liu, Qingling Qi, Chenfei Gao, Lulu Li, Yanjun Li, Jianping Chen, Zongtao Sun, Jianlong Xu, Hehong Zhang
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-02-01
Series:Crop Journal
Subjects:
Oryza sativa (rice)
Jasmonic acid
Southern rice black-streaked dwarf virus (SRBSDV)
Variety resistance
Defense response
Online Access:http://www.sciencedirect.com/science/article/pii/S2214514124001740
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Summary:Viruses are significant pathogens causing severe plant infections and crop losses globally. The resistance mechanisms of rice to viral diseases, particularly Southern rice black-streaked dwarf virus (SRBSDV), remain poorly understood. In this study, we assessed SRBSDV susceptibility in 20 Xian/indica (XI) and 20 Geng/japonica (GJ) rice varieties. XI-1B accessions in the Xian subgroup displayed higher resistance than GJ accessions. Comparative transcriptome analysis revealed changes in processes like oxido-reductase activity, jasmonic acid (JA) metabolism, and stress response. JA sensitivity assays further linked antiviral defense to the JA pathway. These findings highlight a JA-mediated resistance mechanism in rice and offer insights for breeding SRBSDV-resistant varieties.
ISSN:2214-5141

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