Host Plant-Mediated Interactions Between 'Candidatus Liberibacter asiaticus' and Its Vector Diaphorina citri Kuwayama (Hemiptera: Liviidae)

文献类型： 外文期刊

第一作者： Huang, Jiaquan

作者： Huang, Jiaquan;Fox, Eduardo Goncalves Paterson;Deng, Xiaoling;Liang, Guangwen;Cen, Yijing;Qureshi, Jawwad A.;Wan, Fanghao

作者机构：

关键词： Asian citrus psyllid; 'Candidatus Liberibacter asiaticus'; citrus; host plant; life table

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.381； 五年影响因子：2.568 ）

ISSN： 0022-0493

年卷期： 2018 年 111 卷 5 期

页码：

收录情况： SCI

摘要： The Diaphorina citri Kuwayama (Hemiptera: Liviidae) also known as Asian citrus psyllid transmits 'Candidatus Liberibacter asiaticus' (CLas) associated with the citrus Huanglongbing (HLB). Minimizing Asian citrus psyllid populations is one of the most important methods for HLB control. The development and survival of Asian citrus psyllid were evaluated on CLas+ and CLas- plants of Citrus reticulate Blanco. cv. Mashuiju (Sapindales: Rutaceae) or Citrus sunki Hort. ex Tanaka (Sapindales: Rutaceae) to assess the effects of CLas infection on vector populations. The development times were unaffected between CLas+ and CLas- plants for eggs and first to third instar nymphs but decreased for fourth instars, fifth instars, and total nymphal life on CLas+ plants. The survival rates of eggs and first and second instar nymphs were significantly lower, while those of third to fifth instar nymphs were significantly higher on CLas+ plants. However, overall nymphal survival did not differ between CLas+ and CLas- plants. The pre-oviposition period of Asian citrus psyllid on CLas+ plants decreased, while oviposition period increased, resulting in significantly higher fecundity and population trend index compared with those on CLas- plants, illustrating an overall fitness benefit of CLas infection to Asian citrus psyllid. On the other hand, the longevity and resistance to starvation and lower temperatures of adults from CLas+ plants were significantly lower than those from CLas- plants suggesting that there may be a fitness cost for Asian citrus psyllid on CLas+ plants. The development time of eggs and nymphs and adult longevity were always shorter on C. reticulate regardless of infection status. This knowledge of host plant, pathogen, and vector interactions is useful for developing Asian citrus psyllid-HLB management programs.

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