Stable Establishment of Cardinium spp. in the Brown Planthopper Nilaparvata lugens despite Decreased Host Fitness

The brown planthopper (Hemiptera) is a major pest of rice crops in Asia. Artificial transinfections of have recently been used for reducing host impacts, but transinfections have not yet been undertaken with another important endosymbiont, This endosymbiont can manipulate the reproduction of hosts t...

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Bibliographic Details
Published in:Applied and environmental microbiology 2020-02, Vol.86 (4)
Main Authors: Li, Tong-Pu, Zhou, Chun-Ying, Zha, Si-Si, Gong, Jun-Tao, Xi, Zhiyong, Hoffmann, Ary A, Hong, Xiao-Yue
Format: Article
Language:English
Subjects:
Candidatus Cardinium
Cereal crops
Cytoplasmic incompatibility
Density
Developmental stages
Endosymbionts
Fecundity
Females
Hatching
Hemiptera
Host plants
Incompatibility
Invertebrate Microbiology
Males
Nilaparvata lugens
Phenotypes
Wolbachia
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Summary:The brown planthopper (Hemiptera) is a major pest of rice crops in Asia. Artificial transinfections of have recently been used for reducing host impacts, but transinfections have not yet been undertaken with another important endosymbiont, This endosymbiont can manipulate the reproduction of hosts through phenotypes such as cytoplasmic incompatibility (CI), which is strong in the related white-backed planthopper, (Hemiptera). Here, we stably infected with from and showed that it exhibits perfect maternal transmission in The density of varied across developmental stages and tissues of the transinfected host. did not induce strong CI in , likely due to its low density in testicles. The infection did decrease fecundity and hatching rate in the transinfected host, but a decrease in fecundity was not apparent when transinfected females mated with -infected males. The experiments show the feasibility of transferring endosymbionts across hosts, but the deleterious effects of on limit its potential to spread in wild populations of in the absence of strong CI. In this study we established a -infected line that possessed complete maternal transmission. had a widespread distribution in tissues of , and this infection decreased the fecundity and hatching rate of the host. Our findings emphasize the feasibility of transinfection of in insects, which expands the range of endosymbionts that could be manipulated for pest control.
ISSN:0099-2240
1098-5336
DOI:10.1128/AEM.02509-19