Symptoms and yield loss caused by rice stripe mosaic virus
Abstract Background Rice stripe mosaic virus (RSMV) is a tentative new Cytorhabdovirus species in family Rhabdoviridae transmitted by the leafhopper Recilia dorsalis. Although the virus was first detected in southern China in 2015, few studies have investigated rice symptoms and yield losses caused...
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doaj-4baf034923ef40fb8c34e5587e9fd4142020-11-24T21:56:15ZengBMCVirology Journal1743-422X2019-11-0116111010.1186/s12985-019-1240-7Symptoms and yield loss caused by rice stripe mosaic virusSiping Chen0Weilin Li1Xiuqin Huang2Biao Chen3Tong Zhang4Guohui Zhou5Key Laboratory of Microbial Signals and Disease Control of Guangdong Province, College of Agriculture, South China Agricultural UniversityKey Laboratory of Microbial Signals and Disease Control of Guangdong Province, College of Agriculture, South China Agricultural UniversityKey Laboratory of Microbial Signals and Disease Control of Guangdong Province, College of Agriculture, South China Agricultural UniversityKey Laboratory of Microbial Signals and Disease Control of Guangdong Province, College of Agriculture, South China Agricultural UniversityKey Laboratory of Microbial Signals and Disease Control of Guangdong Province, College of Agriculture, South China Agricultural UniversityKey Laboratory of Microbial Signals and Disease Control of Guangdong Province, College of Agriculture, South China Agricultural UniversityAbstract Background Rice stripe mosaic virus (RSMV) is a tentative new Cytorhabdovirus species in family Rhabdoviridae transmitted by the leafhopper Recilia dorsalis. Although the virus was first detected in southern China in 2015, few studies have investigated rice symptoms and yield losses caused by RSMV infection. Methods In this study, we observed and systematically compared symptoms of three virally infected, representative varieties of indica, hybrid and japonica rice and determined the yield parameters of the artificially inoculated plants. Results The three RSMV-infected cultivated rice varieties exhibited slight dwarfing, striped mosaicism, stiff, crinkled or even twisted leaves, an increased number of tillers, delayed heading, cluster-shaped shortening of panicles and mostly unfilled grains. Slight differences in symptom occurrence time were observed under different environmental conditions. For example, mosaic symptoms appeared earlier and crinkling symptoms appeared later, with both symptoms later receding in some infected plants. Yield losses due to RSMV also differed among varieties. The most serious yield reduction was experienced by indica rice (cv. Meixiangzhan), followed by hybrid indica rice (cv. Wuyou 1179) and then japonica (cv. Nipponbare). Single panicle weight, seed setting rate and 1000-kernel weight were reduced in the three infected varieties compared with healthy plants—by 85.42, 94.85 and 31.56% in Meixiangzhan; 52.43, 53.06 and 25.65% in Wuyou 1179 and 25.53, 49.32 and 23.86% in Nipponbare, respectively. Conclusions Our findings contribute basic data for field investigations, formulation of prevention and control strategies and further study of the pathogenesis of RSMV.http://link.springer.com/article/10.1186/s12985-019-1240-7Rice viral diseaseRice stripe mosaic virusSymptomologyYield loss assessment |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Siping Chen Weilin Li Xiuqin Huang Biao Chen Tong Zhang Guohui Zhou |
spellingShingle |
Siping Chen Weilin Li Xiuqin Huang Biao Chen Tong Zhang Guohui Zhou Symptoms and yield loss caused by rice stripe mosaic virus Virology Journal Rice viral disease Rice stripe mosaic virus Symptomology Yield loss assessment |
author_facet |
Siping Chen Weilin Li Xiuqin Huang Biao Chen Tong Zhang Guohui Zhou |
author_sort |
Siping Chen |
title |
Symptoms and yield loss caused by rice stripe mosaic virus |
title_short |
Symptoms and yield loss caused by rice stripe mosaic virus |
title_full |
Symptoms and yield loss caused by rice stripe mosaic virus |
title_fullStr |
Symptoms and yield loss caused by rice stripe mosaic virus |
title_full_unstemmed |
Symptoms and yield loss caused by rice stripe mosaic virus |
title_sort |
symptoms and yield loss caused by rice stripe mosaic virus |
publisher |
BMC |
series |
Virology Journal |
issn |
1743-422X |
publishDate |
2019-11-01 |
description |
Abstract Background Rice stripe mosaic virus (RSMV) is a tentative new Cytorhabdovirus species in family Rhabdoviridae transmitted by the leafhopper Recilia dorsalis. Although the virus was first detected in southern China in 2015, few studies have investigated rice symptoms and yield losses caused by RSMV infection. Methods In this study, we observed and systematically compared symptoms of three virally infected, representative varieties of indica, hybrid and japonica rice and determined the yield parameters of the artificially inoculated plants. Results The three RSMV-infected cultivated rice varieties exhibited slight dwarfing, striped mosaicism, stiff, crinkled or even twisted leaves, an increased number of tillers, delayed heading, cluster-shaped shortening of panicles and mostly unfilled grains. Slight differences in symptom occurrence time were observed under different environmental conditions. For example, mosaic symptoms appeared earlier and crinkling symptoms appeared later, with both symptoms later receding in some infected plants. Yield losses due to RSMV also differed among varieties. The most serious yield reduction was experienced by indica rice (cv. Meixiangzhan), followed by hybrid indica rice (cv. Wuyou 1179) and then japonica (cv. Nipponbare). Single panicle weight, seed setting rate and 1000-kernel weight were reduced in the three infected varieties compared with healthy plants—by 85.42, 94.85 and 31.56% in Meixiangzhan; 52.43, 53.06 and 25.65% in Wuyou 1179 and 25.53, 49.32 and 23.86% in Nipponbare, respectively. Conclusions Our findings contribute basic data for field investigations, formulation of prevention and control strategies and further study of the pathogenesis of RSMV. |
topic |
Rice viral disease Rice stripe mosaic virus Symptomology Yield loss assessment |
url |
http://link.springer.com/article/10.1186/s12985-019-1240-7 |
work_keys_str_mv |
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