Current insights on rice (Oryza sativa L.) bakanae disease and exploration of its management strategies

Abstract

Bakanae is an emerging rice disease caused by the seed- and soil-borne pathogen Fusarium fujikuroi. It is becoming a more serious threat to sustainable rice production throughout rice-growing regions. Bakanae disease infection is responsible for high yield losses ranging from 3% to 95%, and disease incidence varies based on the region and cultivars. Hence, understanding the nature of the pathogen, its pathogenicity, disease epidemiology, symptoms, host–pathogen interaction, and the role of secondary metabolites in the disease cycle will be helpful in the development of effective and sustainable management strategies. However, very few comprehensive studies have described the details of rice bakanae disease. Thus, in this review we summarize and discuss in detail the information available from 1898 to 2023 on various critical facets of bakanae disease, and provide perspectives on future research.

摘要

恶苗病是由种传或土传藤仓镰孢菌(Fusarium fujikuroi)引起的一种水稻的新兴病害,正日益威胁着世界不同产区水稻的可持续生产。恶苗病发病率因地区和品种而异,造成的产量损失可达3%∼95%。认识恶苗病病原菌的特性、致病性、病害流行学、病害症状、寄主–病原菌互作以及病害发生周期中次生代谢物的作用,将有助于制定高效、可持续的病害防治策略,但迄今仍缺乏对水稻恶苗病全面和详细的描述。为此,本篇综述对1898至2023年间恶苗病各关键领域的研究进行总结和深入探讨,并对今后研究提出展望。