导致中国五味子炭疽病的 Colletotrichum fructicola 的特征

IF 1.3 4区农林科学 Q3 FORESTRY

Forest Pathology Pub Date : 2024-05-23 DOI:10.1111/efp.12863

Linzhe Yan, Jianqi Shi, Xiaojie Peng, Shouke Zhang, Xudong Zhou

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引用次数: 0

摘要

2023 年 7 月在中国浙江省采集了具有典型炭疽病症状的五味子叶片。从病斑边缘进行真菌分离，筛选出 CA13、CA18 和 CA27 3 个分离株进行鉴定和致病性试验。根据形态学特征和内部转录间隔序列（ITS）、肌动蛋白序列（ACT）、钙调素序列（CAL）、β-微管蛋白序列（TUB2）和甘油醛-3-磷酸脱氢酶序列（GAPDH）部分区域的系统进化分析，确定这些真菌为Colletotrichum fructicola。将真菌接种到健康的 S. superba 叶片上，会出现与田间观察到的症状相似的症状，并从病变处重新分离出真菌。据我们所知，这是世界上首次报道 C. fructicola 在超级芭蕉上引起炭疽病。

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Characterization of Colletotrichum fructicola causing anthracnose on Schima superba in China

Leaves of Schima superba with typical anthracnose symptoms were collected in July 2023 in Zhejiang Province, China. The fungi isolates were conducted from the margins of the lesions, and three isolates CA13, CA18 and CA27, were selected for identification and pathogenicity test. Based on morphological characteristics and phylogenetic analyses of the partial regions of internal transcribed spacer (ITS), actin (ACT), calmodulin (CAL), beta-tubulin (TUB2), and glyceraldehyde-3-phosphate-dehydrogenase sequences (GAPDH), the fungi were identified as Colletotrichum fructicola. Inoculation of the fungi on healthy S. superba leaves showed symptoms similar to those observed in the field, and the fungi were re-isolated from the lesions. To the best of our knowledge, this represents the first report of C. fructicola causing anthracnose on S. superba worldwide.

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来源期刊

Forest Pathology 农林科学-林学

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

12-24 weeks

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.