First reports of Fusarium agrestense, F. gossypinum, F. grosmichelii and F. triseptatum causing cassava root rot in Pernambuco, Brazil

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2024-09-12 DOI:10.1016/j.cropro.2024.106947

Jenifer Sthephanie Araujo da Silva , Ana Carla da Silva Santos , Carlos Alberto Fragoso de Souza , Diogo Paes da Costa , Amanda Cupertino de Queiroz Brito , Renan do Nascimento Barbosa , Erika Valente de Medeiros , Alexandre Reis Machado , Cristina Maria de Souza-Motta

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Abstract

Cassava root rot is a widespread issue in plantations globally, causing significant economic losses. Fusarioid fungi are widely distributed in the world and are commonly associated to root rot in cassava. Fusarioid fungi were isolated from cassava plant roots exhibiting rot symptoms in a cultivation area in Pernambuco, Brazil. Phylogenetic analysis of the TEF-1α, RPB1, and RPB2 genes identified Fusarium agrestense (a previously invalidly published species now validated), F. gossypinum, F. grosmichelii, F. triseptatum, and Neocosmospora falciformis. Pathogenicity tests demonstrated that all isolates could induce disease in cassava tubers and seedlings. This study presents the first multilocus phylogenetic analysis identifying fusarioid species responsible for cassava root rot globally and in Brazil, including F. agrestense, F. gossypinum, F. grosmichelii, and F. triseptatum.

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首次报告巴西伯南布哥州的 Fusarium agrestense、F. gossypinum、F. grosmichelii 和 F. triseptatum 引起木薯根腐病的情况

木薯根腐病是全球种植园普遍存在的问题，造成了巨大的经济损失。木薯真菌广泛分布于世界各地，通常与木薯根腐病有关。在巴西伯南布哥州的一个种植区，从出现腐烂症状的木薯植株根部分离出了木薯镰刀菌。通过对 TEF-1α、RPB1 和 RPB2 基因进行系统发育分析，确定了 Fusarium agrestense（以前公布的无效菌种，现已得到验证）、F. gossypinum、F. grosmichelii、F. triseptatum 和 Neocosmospora falciformis。致病性试验表明，所有分离物都能诱导木薯块茎和幼苗发病。这项研究首次提出了多焦点系统发育分析，确定了全球和巴西木薯根腐病的镰孢属物种，包括 F. agrestense、F. gossypinum、F. grosmichelii 和 F. triseptatum。

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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.