在巴西，短茎炭疽菌和短茎炭疽菌引起南瓜炭疽病

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2025-07-15 DOI:10.1016/j.cropro.2025.107335

Ana Paula de Moura , Jarlan Lucas dos Santos Silva , Jemerson Willami Silva Ribeiro , Washington Luis da Silva , Márcia Michelle de Queiroz Ambrósio

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引用次数: 0

摘要

本研究旨在鉴定和鉴定引起南瓜果实腐烂的炭疽菌种类。巴西的Ex Poir.)。从北格兰德州的五个农场收集的有症状的南瓜显示坏死斑点，种植者报告说，在雨季，疾病发病率影响了大约30%的水果。通过ITS， ACT， GAPDH和CHS-1基因组区域的形态学特征和部分测序鉴定分离株。鉴定出短茎炭疽病（Colletotrichum brevisporum） 3株和短茎炭疽病（Colletotrichum truncatum） 5株。致病性测试证实，这两个物种都能引起南瓜的炭疽病，科赫的假设得到了满足。据我们所知，这是巴西首次报道C. brevisporum和C. truncatum在南瓜中引起炭疽病。这些发现为了解炭疽菌-南瓜的病理系统和制定有效的疾病管理策略提供了有价值的信息。

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Colletotrichum brevisporum and Colletotrichum truncatum cause pumpkin anthracnose in Brazil

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Colletotrichum brevisporum and Colletotrichum truncatum cause pumpkin anthracnose in Brazil

This study aimed to identify and characterize Colletotrichum species causing fruit rot in pumpkins (Cucurbita moschata Duch. Ex Poir.) in Brazil. Symptomatic pumpkins showing necrotic spots were collected from five farms in Rio Grande do Norte state, where growers reported disease incidence affecting approximately 30 % of fruits during the rainy season. The isolates were identified through morphological features and partial sequencing of the ITS, ACT, GAPDH, and CHS-1 genomic regions. Two species, Colletotrichum brevisporum (three isolates) and Colletotrichum truncatum (five isolates), were identified. Pathogenicity tests confirmed both species cause anthracnose in pumpkins and Koch's postulates were fulfilled. To the best of our knowledge, this is the first report of C. brevisporum and C. truncatum causing anthracnose in pumpkins in Brazil. These findings provide valuable information for understanding the Colletotrichum-pumpkin pathosystem and developing effective disease management strategies.

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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.