Marieli Teresinha Guerrezi Sachet, Juliana de Farias Machado, Deisy Ximena Vianchá Rincón, Gilvan Ferreira da Silva, Thiago Fernandes Sousa, Edvan Alves Chagas, Maria da Conceição da Rocha Araújo, Kedma da Silva Matos
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引用次数: 0
摘要
Myrciaria 属植物通常在巴西北部地区种植，用于生产水果。Camu-camu （Myrciaria dubia）树经常出现叶斑病症状。本研究的目的是利用形态学和系统发育分析的概念，确定与 camu-camu 炭疽病相关的病原体。研究人员从巴西罗赖马州的 Camu-camu 植物中采集了出现炭疽病症状的叶片。通过形态学鉴定；CAL、GAPDH、CHS-1 和 TUB2 基因区域的测序分析；致病性试验以及从人工接种的有症状植物中重新分离真菌，确认 C. theobromicola 为该病的病原菌。这是 C. theobromicola 在巴西首次引起 camu-camu 炭疽病的记录。
First report of anthracnose caused by Colletotrichum theobromicola on Myrciaria dubia in Brazil
Plants of the genus Myrciaria are commonly cultivated in the northern region of Brazil for fruit production. Symptoms of leaf spot in camu-camu (Myrciaria dubia) trees are frequently observed. The objective of this study was to identify the etiological agent associated with anthracnose in camu-camu using the concept of morphological and phylogenetic analyses. Leaves with symptoms of anthracnose were collected from camu-camu plants in the state of Roraima, Brazil. Morphological identification; sequencing analysis of CAL, GAPDH, CHS-1 and TUB2 gene regions; a pathogenicity test and reisolation of the fungus from symptomatic artificially inoculated plants confirmed C. theobromicola as the causal agent of the disease. This is the first record of C. theobromicola causing anthracnose in camu-camu in Brazil.
期刊介绍：
This peer reviewed, highly specialized journal covers forest pathological problems occurring in any part of the world. Research and review articles, short communications and book reviews are addressed to the professional, working with forest tree diseases caused by fungi, bacteria, nematodes, viruses, and phytoplasms; their biology, morphology, and pathology; disorders arising from genetic anomalies and physical or chemical factors in the environment. Articles are published in English.
Fields of interest: Forest pathology, effects of air pollution and adverse environmental conditions on trees and forest ecosystems.
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