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The whitefly‐associated facultative symbiont Hamiltonella defensa suppresses induced plant defences in tomato
Results show that the bacterial symbiont H. defensa mediates whitefly–plant interactions by suppressing induced plant defences in tomato, among the first showing a direct role for facultative symbionts in mediating plant–herbivore interactions and demonstrates a novel tactic for insect herbivores to circumvent plant defences. Expand
Further Spread of and Domination by Bemisia tabaci (Hemiptera: Aleyrodidae) Biotype Q on Field Crops in China
The current survey indicates that biotype Q has rapidly displaced biotype B in most locations in China, and biotypes B and Q have been found in the field in 2009 in China. Expand
Field resistance of Spodoptera litura (Lepidoptera: Noctuidae) to organophosphates, pyrethroids, carbamates and four newer chemistry insecticides in Hunan, China
The present studies were carried out to evaluate resistance in the populations of Spodoptera litura Fab. (Lepidoptera, Noctuidae) from five districts of Hunan Province in China to variousExpand
Pyrosequencing the Bemisia tabaci Transcriptome Reveals a Highly Diverse Bacterial Community and a Robust System for Insecticide Resistance
This transcriptome/metatranscriptome analysis sheds light on the molecular understanding of symbiosis and insecticide resistance in an agriculturally important phloem-feeding insect pest, and lays the foundation for future functional genomics research of the B. tabaci complex. Expand
Insect symbiont facilitates vector acquisition, retention, and transmission of plant virus
Evidence is reported that the Hamiltonella is closely associated with the acquisition, retention, and transmission efficiency of TYLCV by the whitefly vector, which could have implications for disease and vector management. Expand
Tomato yellow leaf curl virus alters the host preferences of its vector Bemisia tabaci
The results indicate TYLCV can alter the host preferences of its vector Bemisia tabaci B and Q, and significantly more β-myrcene, thymene, β-phellandrene, caryophyllene, (+)-4-carene, and α-humulene were released from the TY LCV-free tomato plants than from theTYLCV-infected ones. Expand
Symbiont-mediated functions in insect hosts
It is suggested that clarifying the roles of symbiotic microbes may be important to offer insights for ameliorating pest invasiveness or impact in insect nutritional ecology and defense toward pathogens and parasites. Expand
Whitefly aggregation on tomato is mediated by feeding‐induced changes in plant metabolites that influence the behaviour and performance of conspecifics
Key metabolic changes in plants exhibiting induced susceptibility are document and their role in mediating herbivore foraging behaviour and aggregation on susceptible plants is demonstrated, thereby providing new insight into a relatively unexplored aspect of plant–herbivore interactions. Expand
Location of Symbionts in the Whitefly Bemisia tabaci Affects Their Densities during Host Development and Environmental Stress
The results are consistent with the view that the population dynamics of bacterial symbionts in B. tabaci are regulated by symbiont location within the host and that the regulation reflects adaptation between the bacteria and insect. Expand
Rapid Spread of Tomato Yellow Leaf Curl Virus in China Is Aided Differentially by Two Invasive Whiteflies
The combined results suggested that the epidemiology of TYLCV was aided differentially by the two invasive whiteflies (B and Q biotypes) through horizontal but not vertical transmission of the virus. Expand