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Title: Rickettsia increases its infection and spread in whitefly populations by manipulating the defense patterns of the host plant

Abstract

ABSTRACT The whitefly Bemisia tabaci is a destructive agricultural pest that frequently harbors various species of secondary symbionts including Rickettsia. Previous studies have revealed that the infection of Rickettsia can improve whitefly performance on food plants; however, to date, no evidence has shown, if, and how, Rickettsia manipulates the plant-insect interactions. In the current study, the effects of Rickettsia persistence on the induced plant defenses and the consequent performance of whitefly B. tabaci were investigated. Results revealed that Rickettsia can be transmitted into plants via whitefly feeding and remain alive within the cotton plants for at least 2 weeks. The different expression genes of cotton plants were mostly concentrated in the phytohormone signaling pathways, the marker genes of jasmonic-acid signaling pathway (AOC, AOS, LOX, MYC2) were significantly downregulated, while the marker genes of the salicylic-acid signaling pathway (WRKY70, PR-1) were upregulated. Biological experiments revealed that the fecundity of Rickettsia negative B. tabaci significantly increased when they fed on Rickettsia-persistent cotton plants. Taken together, we provide experimental evidence that the persistence of Rickettsia and its induced defense responses in cotton plants can increase the fitness of whitefly and, by this, Rickettsia may increase its infection and spread within its whitefly host.

Authors:
 [1];  [2];  [3];  [2];  [2]; ORCiD logo [4]
  1. College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, Guangdong Province, China, Key Laboratory of Bio-Pesticide Innovation and Application, Guangzhou 510640, Guangdong Province, China
  2. Key Laboratory of Bio-Pesticide Innovation and Application, Guangzhou 510640, Guangdong Province, China, Engineering Research Center of Biocontrol, Ministry of Education, Guangzhou 510640, Guangdong Province, China
  3. College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510640, Guangdong Province, China
  4. Key Laboratory of Bio-Pesticide Innovation and Application, Guangzhou 510640, Guangdong Province, China, Engineering Research Center of Biocontrol, Ministry of Education, Guangzhou 510640, Guangdong Province, China, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510640, Guangdong Province, China, Department of Entomology, South China Agricultural University, Guangzhou 510640, Guangdong Province, China
Publication Date:
Sponsoring Org.:
USDOE Office of Electricity (OE), Advanced Grid Research & Development. Power Systems Engineering Research
OSTI Identifier:
1773545
Grant/Contract Number:  
2018B020205003
Resource Type:
Published Article
Journal Name:
FEMS Microbiology Ecology
Additional Journal Information:
Journal Name: FEMS Microbiology Ecology Journal Volume: 97 Journal Issue: 4; Journal ID: ISSN 0168-6496
Publisher:
Oxford University Press
Country of Publication:
Netherlands
Language:
English

Citation Formats

Shi, Pei-Qiong, Chen, Xin-Yi, Chen, Xiao-Sheng, Lv, Ning, Liu, Yuan, and Qiu, Bao-Li. Rickettsia increases its infection and spread in whitefly populations by manipulating the defense patterns of the host plant. Netherlands: N. p., 2021. Web. doi:10.1093/femsec/fiab032.
Shi, Pei-Qiong, Chen, Xin-Yi, Chen, Xiao-Sheng, Lv, Ning, Liu, Yuan, & Qiu, Bao-Li. Rickettsia increases its infection and spread in whitefly populations by manipulating the defense patterns of the host plant. Netherlands. https://doi.org/10.1093/femsec/fiab032
Shi, Pei-Qiong, Chen, Xin-Yi, Chen, Xiao-Sheng, Lv, Ning, Liu, Yuan, and Qiu, Bao-Li. Fri . "Rickettsia increases its infection and spread in whitefly populations by manipulating the defense patterns of the host plant". Netherlands. https://doi.org/10.1093/femsec/fiab032.
@article{osti_1773545,
title = {Rickettsia increases its infection and spread in whitefly populations by manipulating the defense patterns of the host plant},
author = {Shi, Pei-Qiong and Chen, Xin-Yi and Chen, Xiao-Sheng and Lv, Ning and Liu, Yuan and Qiu, Bao-Li},
abstractNote = {ABSTRACT The whitefly Bemisia tabaci is a destructive agricultural pest that frequently harbors various species of secondary symbionts including Rickettsia. Previous studies have revealed that the infection of Rickettsia can improve whitefly performance on food plants; however, to date, no evidence has shown, if, and how, Rickettsia manipulates the plant-insect interactions. In the current study, the effects of Rickettsia persistence on the induced plant defenses and the consequent performance of whitefly B. tabaci were investigated. Results revealed that Rickettsia can be transmitted into plants via whitefly feeding and remain alive within the cotton plants for at least 2 weeks. The different expression genes of cotton plants were mostly concentrated in the phytohormone signaling pathways, the marker genes of jasmonic-acid signaling pathway (AOC, AOS, LOX, MYC2) were significantly downregulated, while the marker genes of the salicylic-acid signaling pathway (WRKY70, PR-1) were upregulated. Biological experiments revealed that the fecundity of Rickettsia negative B. tabaci significantly increased when they fed on Rickettsia-persistent cotton plants. Taken together, we provide experimental evidence that the persistence of Rickettsia and its induced defense responses in cotton plants can increase the fitness of whitefly and, by this, Rickettsia may increase its infection and spread within its whitefly host.},
doi = {10.1093/femsec/fiab032},
journal = {FEMS Microbiology Ecology},
number = 4,
volume = 97,
place = {Netherlands},
year = {Fri Feb 19 00:00:00 EST 2021},
month = {Fri Feb 19 00:00:00 EST 2021}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1093/femsec/fiab032

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