草业学报 ›› 2024, Vol. 33 ›› Issue (7): 142-150.DOI: 10.11686/cyxb2023257
• 研究论文 • 上一篇
朱倩丽1,2(), 何翔2, 张洋洋2, 聂江山2, 王常清2, 芦光新1()
收稿日期:
2023-07-24
修回日期:
2023-11-06
出版日期:
2024-07-20
发布日期:
2024-04-08
通讯作者:
芦光新
作者简介:
E-mail: lugx74@qq.comQian-li ZHU1,2(), Xiang HE2, Yang-yang ZHANG2, Jiang-shan NIE2, Chang-qing WANG2, Guang-xin LU1()
Received:
2023-07-24
Revised:
2023-11-06
Online:
2024-07-20
Published:
2024-04-08
Contact:
Guang-xin LU
摘要:
为明确引起兰州市榆中县当归霜霉病的病原菌并为该病害的田间诊断和防治提供理论依据,本研究通过田间病害症状识别、病原显微形态的观察与记录,初步鉴定病原菌种类;收集病株上病原菌的菌丝,提取DNA,扩增28S rDNA D1/D2区序列和线粒体DNA(mtDNA)基因cytochrome c oxidase subunit Ⅱ(cox2)序列并进行测序,根据测序结果分别构建系统发育树分析病原菌种类。经调查,该病害主要危害叶片,初发病时叶正面表现为不规则褪绿斑,斑点后有白色霜状霉层,后褪绿斑逐渐变为褐色枯死斑,严重时整株死亡;显微观察到的病原菌孢囊梗及孢子囊与已有资料中的当归轴霜霉形态一致;序列比对得出病原菌的28S rDNA D1/D2区序列与轴霜霉属Plasmopara pimpinellae HV 634同源性达99.87%,cox2基因序列与轴霜霉属P. pimpinellae TCM-155同源性达100%;系统发育树显示,侵染伞形科植物的轴霜霉属菌种聚在一个分支,亲缘关系密切,与侵染其他不同科寄主植物的轴霜霉亲缘关系较远。28S rDNA D1/D2区序列和cox2基因序列分子鉴定结果一致,均显示与轴霜霉属P. pimpinellae亲缘关系最近,其寄主与当归都是伞形科植物,结合形态学鉴定,确认当归霜霉病的病原菌为Plasmopara angelicae;本研究系国内当归霜霉病病原菌首次系统报道。
朱倩丽, 何翔, 张洋洋, 聂江山, 王常清, 芦光新. 甘肃省当归霜霉病病原鉴定[J]. 草业学报, 2024, 33(7): 142-150.
Qian-li ZHU, Xiang HE, Yang-yang ZHANG, Jiang-shan NIE, Chang-qing WANG, Guang-xin LU. Identification of the pathogen causing downy mildew in Angelica sinensis in Gansu Province[J]. Acta Prataculturae Sinica, 2024, 33(7): 142-150.
病原物 Organism | 菌株 Strain | GenBank 登录号 GenBank ID | 同源性 Percent identity (%) | 寄主 Host |
---|---|---|---|---|
Plasmopara pimpinellae | HV 634 | AY035519.2 | 99.87 | 茴芹Pimpinella major |
Plasmopara pastinacae | HV1090 | AY250157.1 | 99.70 | 欧防风Pastinaca sativa |
Plasmopara peucedani | AR277 | AY250154.1 | 99.70 | 牛奶欧芹Peucedanum palustre |
AR198 | AY250153.1 | 99.70 | 川姜活/林当归Angelica sylvestris | |
Plasmopara meifoeniculi | AR284 | AY250160.1 | 99.56 | 欧香叶芹Meum athamanticum |
AR410 | AY250159.1 | 99.26 | 欧白芷Angelica archangelica | |
葡萄生单轴霉Plasmopara viticola | AR 160 | AY035524.2 | 95.65 | 葡萄Vitis vinifera |
致密单轴霉Plasmopara densa | H. Voglmayr H.V.2232 (WU) | EF553464.1 | 95.62 | 鼻花Rhinanthus alectorolophus |
葡萄生单轴霉P. viticola | UASWS SG1 | EF426546.1 | 95.55 | 葡萄V. vinifera |
老鹳草单轴霉Plasmopara geranii | PA5 | DQ148397.1 | 95.28 | 斑点老鹳草Geranium maculatum |
Plasmopara euphrasiae | E. Vitek E301 (WU) | EF553467.1 | 94.96 | 明目草Euphrasia rostkoviana |
P. euphrasiae | 2226 M. Zamfir s.n. (WU) | EF553465.1 | 94.96 | 小米草Euphrasia stricta |
凤仙单轴霉Plasmopara obducens | Beidou2 | KC905621.1 | 94.88 | 苏丹凤仙花Impatiens walleriana |
南方轴霜霉Plasmopara australis | 2876 | KT159461.1 | 94.39 | 丝瓜Luffa cylindrica |
霍尔斯单轴霉Plasmopara halstedii | RDM_TC14 | KP164999.1 | 93.75 | 全缘金光菊Rudbeckia fulgida |
AR357 | AY250143.1 | / | 野莴苣Lactuca serriola |
表1 28S rDNA D1/D2片段序列BLAST对比得到相似序列的菌种信息
Table 1 Strains with similar sequences by BLAST of 28S rDNA D1/D2 fragment
病原物 Organism | 菌株 Strain | GenBank 登录号 GenBank ID | 同源性 Percent identity (%) | 寄主 Host |
---|---|---|---|---|
Plasmopara pimpinellae | HV 634 | AY035519.2 | 99.87 | 茴芹Pimpinella major |
Plasmopara pastinacae | HV1090 | AY250157.1 | 99.70 | 欧防风Pastinaca sativa |
Plasmopara peucedani | AR277 | AY250154.1 | 99.70 | 牛奶欧芹Peucedanum palustre |
AR198 | AY250153.1 | 99.70 | 川姜活/林当归Angelica sylvestris | |
Plasmopara meifoeniculi | AR284 | AY250160.1 | 99.56 | 欧香叶芹Meum athamanticum |
AR410 | AY250159.1 | 99.26 | 欧白芷Angelica archangelica | |
葡萄生单轴霉Plasmopara viticola | AR 160 | AY035524.2 | 95.65 | 葡萄Vitis vinifera |
致密单轴霉Plasmopara densa | H. Voglmayr H.V.2232 (WU) | EF553464.1 | 95.62 | 鼻花Rhinanthus alectorolophus |
葡萄生单轴霉P. viticola | UASWS SG1 | EF426546.1 | 95.55 | 葡萄V. vinifera |
老鹳草单轴霉Plasmopara geranii | PA5 | DQ148397.1 | 95.28 | 斑点老鹳草Geranium maculatum |
Plasmopara euphrasiae | E. Vitek E301 (WU) | EF553467.1 | 94.96 | 明目草Euphrasia rostkoviana |
P. euphrasiae | 2226 M. Zamfir s.n. (WU) | EF553465.1 | 94.96 | 小米草Euphrasia stricta |
凤仙单轴霉Plasmopara obducens | Beidou2 | KC905621.1 | 94.88 | 苏丹凤仙花Impatiens walleriana |
南方轴霜霉Plasmopara australis | 2876 | KT159461.1 | 94.39 | 丝瓜Luffa cylindrica |
霍尔斯单轴霉Plasmopara halstedii | RDM_TC14 | KP164999.1 | 93.75 | 全缘金光菊Rudbeckia fulgida |
AR357 | AY250143.1 | / | 野莴苣Lactuca serriola |
病原物 Organism | 菌株 Strain | GenBank 登录号 GenBank ID | 同源性 Percent identity (%) | 寄主 Host |
---|---|---|---|---|
P. pimpinellae | TCM-155 | KY887664.1 | 100.00 | 防风Saposhnikovia divaricata |
P. pimpinellae | HV 660 | HM628740.1 | 96.72 | 虎耳草茴芹Pimpinella saxifraga |
蟛蜞菊单轴霉Plasmopara sphagneticolae | BRIP 61010 | KM085175.1 | 85.10 | 南美蟛蜞菊Sphagneticola trilobata |
苍耳轴霜霉Plasmopara angustiterminalis | MT X03A1 | EU826097.1 | 85.10 | 苍耳属Xanthium sp. |
葡萄生单轴霉P. viticola | Cpla3 | KT944077.1 | 84.94 | 葡萄V. vinifera |
雪白轴霜霉Plasmopara nivea | HOH HUH 586 | HM628761.1 | / | 羊草芹Aegopodium podagraria |
霍尔斯单轴霉P. halstedii | KUS-F 18911 | EU743813.1 | / | 向日葵Helianthus annuus |
Plasmopara baudysii | HV 571 | EU826098.1 | / | 天山泽芹Berula erecta |
菊生单轴霉Plasmopara sphagneticolae | BPI 919166 | MT292790.1 | / | 卤地菊Melanthera integrifolia |
Plasmopara majewskii | DAR 69721 | HM628759.1 | / | 蓝目菊属Arctotis sp. |
葡萄生单轴霉P. viticola | U375 | HM628755.1 | / | 河岸葡萄Vitis riparia |
苍耳轴霜霉P. angustiterminalis | HOH HUH 674 | HM628742.1 | / | 苍耳Xanthium strumarium |
Pe. lepigoni | 1157 | KP330661.1 | / | 红牛漆姑草Spergularia rubra |
Pe. polycarpi | HVF32.2 | KP330620.1 | / | 多荚草Polycarpon diphyllum |
表2 cox2基因序列BLAST对比得到相似序列的菌种信息
Table 2 Strains with similar sequences by BLAST of cox2 gene
病原物 Organism | 菌株 Strain | GenBank 登录号 GenBank ID | 同源性 Percent identity (%) | 寄主 Host |
---|---|---|---|---|
P. pimpinellae | TCM-155 | KY887664.1 | 100.00 | 防风Saposhnikovia divaricata |
P. pimpinellae | HV 660 | HM628740.1 | 96.72 | 虎耳草茴芹Pimpinella saxifraga |
蟛蜞菊单轴霉Plasmopara sphagneticolae | BRIP 61010 | KM085175.1 | 85.10 | 南美蟛蜞菊Sphagneticola trilobata |
苍耳轴霜霉Plasmopara angustiterminalis | MT X03A1 | EU826097.1 | 85.10 | 苍耳属Xanthium sp. |
葡萄生单轴霉P. viticola | Cpla3 | KT944077.1 | 84.94 | 葡萄V. vinifera |
雪白轴霜霉Plasmopara nivea | HOH HUH 586 | HM628761.1 | / | 羊草芹Aegopodium podagraria |
霍尔斯单轴霉P. halstedii | KUS-F 18911 | EU743813.1 | / | 向日葵Helianthus annuus |
Plasmopara baudysii | HV 571 | EU826098.1 | / | 天山泽芹Berula erecta |
菊生单轴霉Plasmopara sphagneticolae | BPI 919166 | MT292790.1 | / | 卤地菊Melanthera integrifolia |
Plasmopara majewskii | DAR 69721 | HM628759.1 | / | 蓝目菊属Arctotis sp. |
葡萄生单轴霉P. viticola | U375 | HM628755.1 | / | 河岸葡萄Vitis riparia |
苍耳轴霜霉P. angustiterminalis | HOH HUH 674 | HM628742.1 | / | 苍耳Xanthium strumarium |
Pe. lepigoni | 1157 | KP330661.1 | / | 红牛漆姑草Spergularia rubra |
Pe. polycarpi | HVF32.2 | KP330620.1 | / | 多荚草Polycarpon diphyllum |
图1 当归霜霉病症状A: 叶片发病初期症状(正面)Initial leaf symptoms (obverse); B: 叶片发病初期症状(背面)Initial leaf symptoms (reverse); C: 叶片发病后期症状(正面)Later leaf symptoms (obverse); D: 叶片发病后期症状(背面)Later leaf symptoms (reverse); E: 病害在田间的症状Symptoms of disease in the field.
Fig.1 Symptoms of downy mildew on A. sinensis
图3 PCR扩增产物电泳结果A: NL1/NL4引物PCR扩增结果PCR amplification results of NL1/NL4; B: cox2-F/cox2-R引物PCR扩增结果PCR amplification results of cox2-F/cox2-R; M: D2000 DNA marker; CK: 空白对照Blank control; ND-7, PD-2: 扩增序列Amplified sequence.
Fig.3 Electrophoretic result of PCR amplification products
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