Ustilaginoidea virens, an emerging pathogen of rice: the dynamic interplay between the pathogen virulence strategies and host defense

IF 3.6 3区 生物学 Q1 PLANT SCIENCES
Planta Pub Date : 2024-09-11 DOI:10.1007/s00425-024-04523-x
Sunil Kumar Sunani, Prasanna S. Koti, N. C. Sunitha, Manoj Choudhary, B. Jeevan, C. Anilkumar, S. Raghu, Basana Gowda Gadratagi, Manas Kumar Bag, Licon Kumar Acharya, Dama Ram, Bishnu Maya Bashyal, Shyamaranjan Das Mohapatra
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Main Conclusion

The Ustilaginoidea virens –rice pathosystem has been used as a model for flower-infecting fungal pathogens. The molecular biology of the interactions between U. virens and rice, with an emphasis on the attempt to get a deeper comprehension of the false smut fungus's genomes, proteome, host range, and pathogen biology, has been investigated. Meta-QTL analysis was performed to identify potential QTL hotspots for use in marker-assisted breeding.

Abstract

The Rice False Smut (RFS) caused by the fungus Ustilaginoidea virens currently threatens rice cultivators across the globe. RFS infects rice panicles, causing a significant reduction in grain yield. U. virens can also parasitize other hosts though they play only a minor role in its life cycle. Furthermore, because it produces mycotoxins in edible rice grains, it puts both humans and animals at risk of health problems. Although fungicides are used to control the disease, some fungicides have enabled the pathogen to develop resistance, making its management challenging. Several QTLs have been reported but stable gene(s) that confer RFS resistance have not been discovered yet. This review offers a comprehensive overview of the pathogen, its virulence mechanisms, the genome and proteome of U. virens, and its molecular interactions with rice. In addition, information has been compiled on reported resistance QTLs, facilitating the development of a consensus genetic map using meta-QTL analysis for identifying potential QTL hotspots. Finally, this review highlights current developments and trends in U. virens–rice pathosystem research while identifying opportunities for future investigations.

Abstract Image

水稻新病原体 Ustilaginoidea virens:病原体毒力策略与宿主防御之间的动态相互作用
主要结论 Ustilaginoidea virens-水稻病原系统已被用作花卉感染真菌病原体的模型。研究了 U. virens 与水稻之间相互作用的分子生物学,重点是试图更深入地了解假烟粉虱真菌的基因组、蛋白质组、寄主范围和病原生物学。摘要由假烟真菌 Ustilaginoidea virens 引起的水稻假烟病(RFS)目前威胁着全球的水稻种植者。RFS 感染水稻圆锥花序,导致谷物大幅减产。U. virens 还能寄生在其他宿主身上,但这些宿主在其生命周期中只起很小的作用。此外,由于它会在可食用的稻谷中产生霉菌毒素,因此会给人类和动物带来健康风险。虽然使用杀菌剂来控制这种疾病,但一些杀菌剂使病原体产生了抗药性,从而使其管理面临挑战。已有多个 QTLs 被报道,但赋予 RFS 抗性的稳定基因尚未被发现。本综述全面概述了该病原体、其毒力机制、U. virens 的基因组和蛋白质组及其与水稻的分子相互作用。此外,还汇编了已报道的抗性 QTLs 信息,有助于利用元 QTL 分析建立共识遗传图谱,以确定潜在的 QTL 热点。最后,本综述强调了 U. virens-水稻病原系统研究的当前发展和趋势,同时指出了未来研究的机会。
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来源期刊
Planta
Planta 生物-植物科学
CiteScore
7.20
自引率
2.30%
发文量
217
审稿时长
2.3 months
期刊介绍: Planta publishes timely and substantial articles on all aspects of plant biology. We welcome original research papers on any plant species. Areas of interest include biochemistry, bioenergy, biotechnology, cell biology, development, ecological and environmental physiology, growth, metabolism, morphogenesis, molecular biology, new methods, physiology, plant-microbe interactions, structural biology, and systems biology.
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