Prevalence of rice stripe virus can be altered by temperature and the virus-mediated development of insect vector, Laodelphax striatellus, in Korea

Minho Lee, Sunyoung Lee, Jin Woo Park, Jino Son, Doo Hyung Lee, Munil Ryoo, Ki Jong Cho

Research output: Contribution to journalArticle

Abstract

Since the 2000's in Korea, the regional hotspots of rice stripe virus (genus Tenuivirus, RSV), transmitted by small brown planthopper (Laodelphax striatellus (Fallén), SBPH), have changed from the southeastern to the western coastal regions. The reasons for this are as yet unknown, but recent changes in temperatures in spring, the time at which the vectors migrate from overwintering sites to rice fields, are thought to be an important factor. In this study, we investigated the differences in the development of RSV-infected and RSV-free SBPH populations and further investigated how spring temperatures affect RSV transmission to rice (Oryza sativa). Two temperature conditions (15 and 20 °C) were chosen based on the average temperature in April–May and May–June in Korea, respectively, at which the SBPHs begin to migrate from Gramineae weeds to rice during the spring season. The nymphal developmental period in the RSV-infected SBPH was significantly shorter than that in the RSV-free SBPH. The body weight of males was significantly higher in the RSV-infected SBPH than in the RSV-free SBPH at early nymphal stage (1st day of 5th instar). The transmission of RSV to the rice seedlings was higher at 20 °C than at 15 °C. Rapid nymphal development of the RSV-infected SBPH with higher RSV transmission rate at high temperature is considered to be related to the geographical shift of RSV hotspots from the southeastern to the western coastal regions of Korea.

Original languageEnglish
Pages (from-to)1145-1149
Number of pages5
JournalJournal of Asia-Pacific Entomology
Volume20
Issue number4
DOIs
Publication statusPublished - 2017 Dec 1

Fingerprint

Rice stripe virus
Laodelphax striatellus
insect vectors
Korean Peninsula
viruses
temperature
rice
Tenuivirus
overwintering
Poaceae
paddies
Oryza sativa
instars
weeds
body weight
seedlings

Keywords

  • Developmental time
  • Epidemic model
  • Geographical shift
  • Spring temperature
  • Transmission time

ASJC Scopus subject areas

  • Insect Science

Cite this

Prevalence of rice stripe virus can be altered by temperature and the virus-mediated development of insect vector, Laodelphax striatellus, in Korea. / Lee, Minho; Lee, Sunyoung; Park, Jin Woo; Son, Jino; Lee, Doo Hyung; Ryoo, Munil; Cho, Ki Jong.

In: Journal of Asia-Pacific Entomology, Vol. 20, No. 4, 01.12.2017, p. 1145-1149.

Research output: Contribution to journalArticle

Lee, Minho ; Lee, Sunyoung ; Park, Jin Woo ; Son, Jino ; Lee, Doo Hyung ; Ryoo, Munil ; Cho, Ki Jong. / Prevalence of rice stripe virus can be altered by temperature and the virus-mediated development of insect vector, Laodelphax striatellus, in Korea. In: Journal of Asia-Pacific Entomology. 2017 ; Vol. 20, No. 4. pp. 1145-1149.
@article{c9f6f063a4ca4288b7a25f6ef7524cd8,
title = "Prevalence of rice stripe virus can be altered by temperature and the virus-mediated development of insect vector, Laodelphax striatellus, in Korea",
abstract = "Since the 2000's in Korea, the regional hotspots of rice stripe virus (genus Tenuivirus, RSV), transmitted by small brown planthopper (Laodelphax striatellus (Fall{\'e}n), SBPH), have changed from the southeastern to the western coastal regions. The reasons for this are as yet unknown, but recent changes in temperatures in spring, the time at which the vectors migrate from overwintering sites to rice fields, are thought to be an important factor. In this study, we investigated the differences in the development of RSV-infected and RSV-free SBPH populations and further investigated how spring temperatures affect RSV transmission to rice (Oryza sativa). Two temperature conditions (15 and 20 °C) were chosen based on the average temperature in April–May and May–June in Korea, respectively, at which the SBPHs begin to migrate from Gramineae weeds to rice during the spring season. The nymphal developmental period in the RSV-infected SBPH was significantly shorter than that in the RSV-free SBPH. The body weight of males was significantly higher in the RSV-infected SBPH than in the RSV-free SBPH at early nymphal stage (1st day of 5th instar). The transmission of RSV to the rice seedlings was higher at 20 °C than at 15 °C. Rapid nymphal development of the RSV-infected SBPH with higher RSV transmission rate at high temperature is considered to be related to the geographical shift of RSV hotspots from the southeastern to the western coastal regions of Korea.",
keywords = "Developmental time, Epidemic model, Geographical shift, Spring temperature, Transmission time",
author = "Minho Lee and Sunyoung Lee and Park, {Jin Woo} and Jino Son and Lee, {Doo Hyung} and Munil Ryoo and Cho, {Ki Jong}",
year = "2017",
month = "12",
day = "1",
doi = "10.1016/j.aspen.2017.08.012",
language = "English",
volume = "20",
pages = "1145--1149",
journal = "Journal of Asia-Pacific Entomology",
issn = "1226-8615",
publisher = "Elsevier",
number = "4",

}

TY - JOUR

T1 - Prevalence of rice stripe virus can be altered by temperature and the virus-mediated development of insect vector, Laodelphax striatellus, in Korea

AU - Lee, Minho

AU - Lee, Sunyoung

AU - Park, Jin Woo

AU - Son, Jino

AU - Lee, Doo Hyung

AU - Ryoo, Munil

AU - Cho, Ki Jong

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Since the 2000's in Korea, the regional hotspots of rice stripe virus (genus Tenuivirus, RSV), transmitted by small brown planthopper (Laodelphax striatellus (Fallén), SBPH), have changed from the southeastern to the western coastal regions. The reasons for this are as yet unknown, but recent changes in temperatures in spring, the time at which the vectors migrate from overwintering sites to rice fields, are thought to be an important factor. In this study, we investigated the differences in the development of RSV-infected and RSV-free SBPH populations and further investigated how spring temperatures affect RSV transmission to rice (Oryza sativa). Two temperature conditions (15 and 20 °C) were chosen based on the average temperature in April–May and May–June in Korea, respectively, at which the SBPHs begin to migrate from Gramineae weeds to rice during the spring season. The nymphal developmental period in the RSV-infected SBPH was significantly shorter than that in the RSV-free SBPH. The body weight of males was significantly higher in the RSV-infected SBPH than in the RSV-free SBPH at early nymphal stage (1st day of 5th instar). The transmission of RSV to the rice seedlings was higher at 20 °C than at 15 °C. Rapid nymphal development of the RSV-infected SBPH with higher RSV transmission rate at high temperature is considered to be related to the geographical shift of RSV hotspots from the southeastern to the western coastal regions of Korea.

AB - Since the 2000's in Korea, the regional hotspots of rice stripe virus (genus Tenuivirus, RSV), transmitted by small brown planthopper (Laodelphax striatellus (Fallén), SBPH), have changed from the southeastern to the western coastal regions. The reasons for this are as yet unknown, but recent changes in temperatures in spring, the time at which the vectors migrate from overwintering sites to rice fields, are thought to be an important factor. In this study, we investigated the differences in the development of RSV-infected and RSV-free SBPH populations and further investigated how spring temperatures affect RSV transmission to rice (Oryza sativa). Two temperature conditions (15 and 20 °C) were chosen based on the average temperature in April–May and May–June in Korea, respectively, at which the SBPHs begin to migrate from Gramineae weeds to rice during the spring season. The nymphal developmental period in the RSV-infected SBPH was significantly shorter than that in the RSV-free SBPH. The body weight of males was significantly higher in the RSV-infected SBPH than in the RSV-free SBPH at early nymphal stage (1st day of 5th instar). The transmission of RSV to the rice seedlings was higher at 20 °C than at 15 °C. Rapid nymphal development of the RSV-infected SBPH with higher RSV transmission rate at high temperature is considered to be related to the geographical shift of RSV hotspots from the southeastern to the western coastal regions of Korea.

KW - Developmental time

KW - Epidemic model

KW - Geographical shift

KW - Spring temperature

KW - Transmission time

UR - http://www.scopus.com/inward/record.url?scp=85028070598&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85028070598&partnerID=8YFLogxK

U2 - 10.1016/j.aspen.2017.08.012

DO - 10.1016/j.aspen.2017.08.012

M3 - Article

AN - SCOPUS:85028070598

VL - 20

SP - 1145

EP - 1149

JO - Journal of Asia-Pacific Entomology

JF - Journal of Asia-Pacific Entomology

SN - 1226-8615

IS - 4

ER -