北京地区金雨树溃疡病和枯死病6种真菌的鉴定和致病性。

IF 4.6 2区 生物学 Q1 MYCOLOGY Mycology Pub Date : 2023-01-01 DOI:10.1080/21501203.2022.2096144
Meng Pan, Lu Lin, Chengming Tian, Xinlei Fan
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引用次数: 2

摘要

金雨树(Koelreuteria paniculata)因其重要的观赏、药用和经济价值而被大量种植。然而,它们在很大程度上受到溃疡病和枯死病的影响。为了确定与金雨树溃疡病和枯死病相关的真菌,我们于2019年和2020年在中国北京的绿化带和苗圃中从病枝和细枝中分离出真菌。根据ITS、act、rpb2、tef1-α和tub2的形态特征和系统发育分析,分离菌株鉴定为6个种(异源隐球菌castaneicola、斑点孢球孢菌dotryosphaeria dothicola、斑点孢胞孢子菌koelreutericola sp. nov、斑点微孢子菌Dothiorella acericola、柠檬酸微孢子菌citricola和scoparia Peroneutypa)。致病性试验结果表明,所有真菌均产生变色现象,对金雨树具有极强的侵染性。总之,本研究探讨了与金雨树溃疡病和枯死病相关的不同真菌种类的分类、系统发育和致病性,为提高病害管理水平提供了基础知识。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Identification and pathogenicity of six fungal species causing canker and dieback disease on golden rain tree in Beijing, China.

Golden rain trees (Koelreuteria paniculata) are largely cultivated because of their important ornamental, medicinal, and economic value. However, they are affected by canker and dieback disease to a large extent. To determine the fungi associated with canker and dieback disease of golden rain trees, isolations were obtained from diseased branches and twigs during 2019 and 2020 in greenbelts and nurseries in Beijing, China. Isolates were identified as six species (Allocryptovalsa castaneicola, Botryosphaeria dothidea, Cytospora koelreutericola sp. nov., Dothiorella acericola, Eutypella citricola, and Peroneutypa scoparia) based on morphological features and phylogenetic analyses of ITS, act, rpb2, tef1-α, and tub2. The results of pathogenicity tests indicated that all fungi produced discoloration and Botryosphaeria dothidea was highly aggressive to golden rain tree. In conclusion, this study explored the taxonomy, phylogeny, and pathogenicity of different fungal species associated with canker and dieback disease on golden rain tree and provided fundamental knowledge to improve disease management.

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来源期刊
Mycology
Mycology Medicine-Infectious Diseases
CiteScore
9.10
自引率
0.00%
发文量
18
审稿时长
13 weeks
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