Work

Ubiquitin-Conjugating Enzyme E2 E Inhibits the Accumulation of Rice Stripe Virus in Laodelphax striatellus (Fallén)

Year: 2020

Type: article

Abstract: The ubiquitin–proteasome system (UPS) is an essential protagonist in host–pathogen interactions. Among the three classes of enzymes in the UPS, ubiquitin-conjugating enzyme E2 plays a dual role in viral pathogenesis; however, the role of insect E2s in interactions with plant viruses is unclear. Twenty E2-encoding genes in Laodelphax striatellus, the small brown planthopper, were identified and classified into 17 groups by transcriptomic and phylogenetic analysis. Full-length cDNAs of four LstrE2s (LstrE2 A/E/G2/H) were obtained by rapid-amplification of cDNA ends (RACE-PCR) analysis. Expression of the four LstrE2s showed tissue- and development-specific patterns. RT-qPCR analyses revealed that Rice stripe viruse (RSV) infection increased the level of LstrE2 A/E/G2/H. Further study indicated that repression of LstrE2 E via RNAi caused significant increases in the expression of RSV coat protein mRNA and protein levels. These findings suggest that LstrE2 E inhibits RSV accumulation in the planthopper body. Understanding the function of LstrE2 E in RSV accumulation may ultimately result in the development of novel antiviral strategies.

Source: Viruses

DOI: 10.3390/v12090908

Authors: Yao Li, Ze Zhou, Mi Shen, Linquan Ge, Fang Liu

Institutions: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory of Biology of Plant Diseases and Insect Pests, Yangzhou University

Language: English

Topic: Plant Virus Research Studies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,112