印度草莓炭疽菌引发冠腐病的首次报道：从形态培养特征和多基因系统发育的见解

IF 2.8 3区农林科学 Q2 PLANT SCIENCES

Physiological and Molecular Plant Pathology Pub Date : 2025-05-06 DOI:10.1016/j.pmpp.2025.102731

Adesh Kumar , Shubham Saini , Anil Kumar Saini , Sushil Sharma , Rakesh Gehlot , Anil Kumar , Rakesh Kumar , K.C. Rajeshkumar , Roomi Rawal , Vikas Kumar Sharma , R.P.S. Dalal

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引用次数: 0

摘要

冠腐病是草莓（Fragaria x ananassa）的一种毁灭性病害，在世界范围内导致大量产量损失。此外，它是一种复杂的疾病，在世界范围内涉及多种病原体作为刺激物，因此很难排除确切的病因。在最近一次于2024年11月对哈里亚纳邦的草莓农场进行的调查中，仅在树冠上观察到严重的冠腐病症状，而在农民的田地里没有观察到水果和叶子的症状。形态培养特征揭示了尖锐炭疽菌种复合体的种间关联。基于内部转录间隔序列（ITS）、肌动蛋白（ACT）、甘油醛-3-磷酸脱氢酶（GAPDH）的多基因系统发育证实该病原菌为炭疽菌。致病性试验表明，除冠区外，病原菌还能侵染叶片和果实。据我们所知，这是印度关于炭疽病菌引起草莓冠腐病的第一份报告，它强调了提高警惕和综合疾病管理策略的必要性，以减轻其对草莓生产的潜在威胁。

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First report of Colletotrichum nymphaeae inciting crown rot in strawberry from India: Insights from morpho-cultural characteristics and multi-gene phylogenetics

Crown rot is a devastating disease of strawberry (Fragaria x ananassa) leading to substantial yield losses across world. Further it is a complex disease with involvement of multiple pathogens as incitant worldwide, making it challenging to rule out the exact causal agent. During a recent survey of strawberry farm in Haryana during November 2024, severe crown rot symptoms were observed on crown only whilst no symptoms were observed on fruit and leaves at farmer's field. Morpho-cultural characterization revealed the association of species from Colletotrichum acutatum species complex. Multi-gene phylogenetics based on internal transcribed spacer (ITS), actin (ACT), glyceraldehyde-3-phosphate dehydrogenase (GAPDH) confirmed the identity of pathogen as Colletotrichum nymphaeae. Pathogenicity tests revealed that in addition to crown region, the pathogen have ability to infect leaves and fruits. To our knowledge, this is the first report of Colletotrichum nymphaeae inciting strawberry crown rot in India and it underscores the need for heightened vigilance and integrated disease management strategies to mitigate its potential threat to strawberry production.

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来源期刊

Physiological and Molecular Plant Pathology 生物-植物科学

CiteScore

4.30

自引率

7.40%

发文量

130

审稿时长

38 days

期刊介绍： Physiological and Molecular Plant Pathology provides an International forum for original research papers, reviews, and commentaries on all aspects of the molecular biology, biochemistry, physiology, histology and cytology, genetics and evolution of plant-microbe interactions. Papers on all kinds of infective pathogen, including viruses, prokaryotes, fungi, and nematodes, as well as mutualistic organisms such as Rhizobium and mycorrhyzal fungi, are acceptable as long as they have a bearing on the interaction between pathogen and plant.