Arthropod-Plant Interactions (2015) 9, 97-105

Pei Jing, Lijun Huang, Sufen Bai and Fang Liu (2015)
Effects of rice resistance on the feeding behavior and subsequent virus transmission efficiency of Laodelphax striatellus
Arthropod-Plant Interactions 9 (1), 97-105
Abstract: Laodelphax striatellus is an important vector of rice stripe virus (RSV). In this study, electrical penetration graph technology was applied to investigate the feeding behavior of L. striatellus associated with virus transmission. The effects of a disease-resistant variety Yandao No. 8 on the feeding behavior and subsequent virus transmission efficiency of L. striatellus were examined. The results indicate that in addition to the phloem sap ingestion phase, which was previously reported as a behavior associated with virus acquisition, phases of salivation and stylet movement were relevant to RSV acquisition by naïve L. striatellus. The duration of the non-penetration phase of naïve L. striatellus on healthy Yandao No. 8 plants was significantly longer, and the duration of sap ingestion was significantly shorter compared to those on a susceptible control. RSV acquisition rate of naïve L. striatellus on Yandao No. 8 was only 28 % of that on the susceptible control. Virus inoculation by viruliferous L. striatellus could occur during the salivation, stylet movement, and phloem sap ingestion phases. Yandao No. 8 significantly prolonged the duration of the non-penetration phase and significantly shortened the duration of sap ingestion in viruliferous L. striatellus. Virus inoculation rate of viruliferous L. striatellus feeding on healthy Yandao No. 8 was significantly lower, decreasing by 27 %, than that of the control. The mechanisms of varietal effects on the feeding behavior and virus transmission of L. striatellus are discussed. The varietal effect on virus transmission should have significance for viral disease control.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Fang Liu, Su-Fen Bai

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Laodelphax striatellus	Rice (Oryza)	China (NE)