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在巴西引起叶枯病的两种新的肉座菌目(Hypocreales)、丛赤壳科(Nectriaceae)真菌。

Two new species of (Hypocreales, Nectriaceae) causing leaf blight in Brazil.

作者信息

Sanchez-Gonzalez Enrique I, Soares Thaissa de Paula Farias, Zarpelon Talyta Galafassi, Zauza Edival Angelo Valverde, Mafia Reginaldo Gonçalves, Ferreira Maria Alves

机构信息

Universidade Federal de Lavras, Departamento de Fitopatologia, Lavras, MG, 37200-900, Brasil Universidade Federal de Lavras Lavras Brazil.

Suzano Papel e Celulose S. A. Centro de Tecnologia, Aracruz, ES, 29197-900, Brasil Suzano Papel e Celulose S. A. Centro de Tecnologia Aracruz Brazil.

出版信息

MycoKeys. 2022 Jul 29;91:169-197. doi: 10.3897/mycokeys.91.84896. eCollection 2022.

Abstract

In recent decades, commercial plantations have expanded toward the warm and humid regions of northern and northeastern Brazil, where leaf blight (CLB) has become the primary fungal leaf disease of this crop. CLB can be caused by different species, and previous studies have indicated that might have high species diversity in Brazil. During a disease survey conducted in three commercial plantations of in northeastern Brazil, diseased leaves from trees with typical symptoms of CLB were collected, and fungi were isolated. Based on phylogenetic analyses of six gene regions (t, , , , , and ) and morphological characteristics, two new species of were identified. Five isolates were named as and four were named as The pathogenicity to of both species was confirmed by fulfilling the Koch's postulates.

摘要

近几十年来,商业种植园已向巴西北部和东北部温暖潮湿的地区扩展,在这些地区,叶枯病(CLB)已成为这种作物的主要真菌性叶部病害。CLB可能由不同物种引起,先前的研究表明巴西的CLB可能具有很高的物种多样性。在巴西东北部三个商业种植园进行病害调查期间,收集了具有CLB典型症状的树木的病叶,并分离出真菌。基于对六个基因区域(t、、、、、和)的系统发育分析和形态特征,鉴定出两个新的物种。五个分离株被命名为,四个被命名为。通过满足科赫法则证实了这两个物种对的致病性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4f2b/9849068/5ae01ee64c21/mycokeys-91-169-g001.jpg

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