Fusarium graminearum causes leaf spot disease in Nicandra physalodes in China

IF 2.5 2区农林科学 Q1 AGRONOMY Crop Protection Pub Date : 2024-10-11 DOI:10.1016/j.cropro.2024.106983

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Abstract

Nicandra physalodes is an annual herbaceous plant that belongs to the Solanaceae family. Though native to South America, it is now extensively cultivated in China for medicinal and ornamental purposes. In traditional Chinese medicine, various parts of the plant are used for their therapeutic properties such as sedatives, expectorants, antipyretics, and antidotes. Furthermore, N. physalodes is considered an edible plant, and its seeds contain pectin, which is used in food production. However, recent observations in Hezhang county, Guizhou province, revealed a prevalent leaf spot disease affecting N. physalodes, leading to a decreased yield. In this study, morphological and molecular analyses, pathogenicity assays, and Koch's postulates were used to identify the fungal pathogens responsible for leaf spot disease in N. physalodes. Fusarium graminearum was confirmed as the causative agent based on morphological and molecular analyses, pathogenicity assays, and Koch's postulates, and this represents the first documented case of F. graminearum infection in N. physalodes. These findings underscore the importance of disease management strategies to mitigate the impact of leaf spot disease on the yield of this valuable medicinal plant.

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禾本科镰刀菌在中国引起尼古拉尺蠖叶斑病

Nicandra physalodes 是茄科一年生草本植物。虽然原产于南美洲，但目前在中国被广泛种植，用于药用和观赏。在传统中药中，该植物的不同部分具有镇静、祛痰、解热和解毒等治疗功效。此外，N. physalodes 被认为是一种可食用植物，其种子含有果胶，可用于食品生产。然而，最近在贵州省赫章县的观察发现，楠木叶斑病流行，导致产量下降。本研究利用形态学和分子分析、致病性测定和科赫定理来确定引起糯玉米叶斑病的真菌病原。根据形态学和分子分析、致病性测定和科赫推定，禾谷镰孢被确认为致病菌，这也是禾谷镰孢感染禾谷牛叶斑病的首个记录病例。这些发现强调了疾病管理策略对减轻叶斑病对这种珍贵药用植物产量影响的重要性。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.