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陕西延川枣区叶蝉种类鉴定及其种群消长动态与传播枣疯病潜在介体叶蝉筛查陕西延川枣区叶蝉种类鉴定及其种群消长动态与传播枣疯病潜在介体叶蝉筛查
Species identification, population dynamics and screening of leafhoppers as potential vectors of the jujube witches'-broom in jujube orchards in Yanchuan, Shaanxi province
陈玉鑫,刘瑞昌,刘锦春,陈秀琳,李伯辽,李广伟
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DOI:10.7679/j.issn.2095-1353.2023.091
作者单位:陕西省红枣重点实验室(延安大学),延安 716000
中文关键词:枣疯病;植原体;叶蝉;介体昆虫;种群动态
英文关键词:jujube witches broom; phytoplasma; leafhopper; insect vector; population dynamics
中文摘要:

【目的】 明确陕西延川县枣区叶蝉种类及其种群消长动态,筛查携带枣疯植原体的潜在介体叶蝉,为预防和控制枣疯病在陕北枣区的蔓延流行提供科学依据。【方法】 利用黄色粘虫板诱捕法调查枣园发生的叶蝉种类及主要种类的种群消长动态,以枣疯植原体16S rDNA为检测基因通过PCR技术筛查携带枣疯植原体的叶蝉种类及携带率。【结果】 陕西延川枣区发生的叶蝉共11种,包括异色对纹叶蝉Zygina discolor Horváth、镇原树小叶蝉Arboridia zhenyuana Song & Li、桃一点叶蝉Singapora shinshana Matsumura、蒙奥小叶蝉Austroasca mitjaevi Dworakowska、白边大叶蝉Kolla paulula Walker、截突长突叶蝉Batracomorphus allionii Turton、端钩菱纹叶蝉Hishimonus hamatus Kuoh、新东方叶蝉Orientus ishidae Matsumura、亨氏普叶蝉Platymetopius henribauti Dlabola褐背普叶蝉Platymetopius obsoletus Signoret和茶网背叶蝉Reticuluma testacea Kuoh。异色对纹叶蝉、截突长突叶蝉和蒙奥小叶蝉的诱集量较大,分别占叶蝉总诱集量的49.64%21.82%11.76%%,属于优势种。延川县枣区叶蝉主要发生在4月下旬至11月上旬,异色对纹叶蝉成虫有3个发生高峰,截突长突叶蝉和茶网背叶蝉成虫有2个明显的发生高峰,其他叶蝉仅有1个或无明显的发生高峰期。PCR检测结果显示不同种类的叶蝉其枣疯植原体携带率显著不同,异色对纹叶蝉和端钩菱纹叶蝉携带枣疯植原体的比例最高,达80%以上;桃一点叶蝉、茶网背叶蝉和新东方叶蝉次之,携带率介于50%-68%之间,截突长突叶蝉的携带率相对较低(39%),白边大叶蝉成虫中未检测到枣疯植原体。【结论】 延川枣园携带枣疯病植原体的叶蝉种类多、携带率高,应根据不同叶蝉的发生规律对潜在的枣疯植原体介体叶蝉进行高效治理,有助于阻断和延缓枣疯病在陕北枣区的流行蔓延

  



英文摘要:

[Objectives]  To investigate the species and population dynamics of leafhoppers in jujube orchards in Yanchuan county, Shaanxi province in order to identify potential vectors of jujube witches’ broom (JWB), and thereby provide a theoretical basis for preventing the spread of this disease in northern Shaanxi. [Methods]  The species and population dynamics of leafhoppers in jujube orchards were investigated using yellow sticky traps, and species carrying JWB phytoplasma 16S rDNA were identified with PCR. [Results]  A total of 11 leafhopper species were captured, including Zygina discolor Horváth, Arboridia zhenyuana Song & Li, Singapora shinshana Matsumura, Austroasca mitjaevi Dworakowska, Kolla paulula Walker, Batracomorphus allionii Turton, Hishimonus hamatus Kuoh, Orientus ishidae Matsumura, Platymetopius henribauti Dlabola, Platymetopius obsoletus Signoret, and Reticuluma testacea Kuoh. The most common species captured were Z. discolorBallionii, and A. mitjaevi, which comprised for 49.64%, 21.82%, and 11.76%, respectively, of all leafhoppers captured. These three leafhoppers are the dominant species in jujube orchards. Leafhoppers are most common in Yanchuan jujube orchards from late April to early November. There are three occurrence peaks for Z. discolor, two for Ballionii and Rtestacea adults, and only one, or no obvious peak, for the other monitored species. PCR indicated that a high proportion (> 80%) of Z. discolor and H. hamatus carried JWB phytoplasm, followed by S. shinshanaRtestacea, and O. ishidae (50%-68%) and Ballionii (39%). No phytoplasma were detected in adult K. paulula. [Conclusion]  Leafhopper species were abundant in Yanchuan jujube orchards and a high proportion of several common species were infected with JWB phytoplasma. Potential vectors of JWB should be effectively controlled based on their species-specific population dynamics, which will help break the chain of transmission and delay the spread of JWB in the jujube growing area of northern Shaanxi.

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