title: Virus-mediated chemical changes in rice plants impact the relationship between non-vector planthopper Nilaparvata lugens Stål and its egg parasitoid Anagrus nilaparvatae Pang et Wang.
abstract: In order to clarify the impacts of southern rice black-streaked dwarf virus (SRBSDV) infection on rice plants, rice planthoppers and natural enemies, differences in nutrients and volatile secondary metabolites between infected and healthy rice plants were examined. Furthermore, the impacts of virus-mediated changes in plants on the population growth of non-vector brown planthopper (BPH), Nilaparvata lugens, and the selectivity and parasitic capability of planthopper egg parasitoid Anagrus nilaparvatae were studied. The results showed that rice plants had no significant changes in amino acid and soluble sugar contents after SRBSDV infection, and SRBSDV-infected plants had no significant effect on population growth of non-vector BPH. A. nilaparvatae preferred BPH eggs both in infected and healthy rice plants, and tended to parasitize eggs on infected plants, but it had no significant preference for infected plants or healthy plants. GC-MS analysis showed that tridecylic aldehyde occurred only in rice plants infected with SRBSDV, whereas octanal, undecane, methyl salicylate and hexadecane occurred only in healthy rice plants. However, in tests of behavioral responses to these five volatile substances using a Y-tube olfactometer, A. nilaparvatae did not show obvious selectivity between single volatile substances at different concentrations and liquid paraffin in the control group. The parasitic capability of A. nilaparvatae did not differ between SRBSDV-infected plants and healthy plant seedlings. The results suggested that SRBSDV-infected plants have no significant impacts on the non-vector planthopper and its egg parasitoid, A. nilaparvatae.
authors.affiliation: State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Sciences, Hangzhou, China; Jinhua Research Academy of Agricultural Sciences, Jinhua, China.
authors.forename: Xiaochan
authors.initials: X
authors.lastname: He
authors.affiliation: State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Sciences, Hangzhou, China.
authors.forename: Hongxing
authors.initials: H
authors.lastname: Xu
authors.affiliation: School of Medicine Science, Jiaxing University, Jiaxing, China.
authors.forename: Guanchun
authors.initials: G
authors.lastname: Gao
authors.affiliation: Jinhua Research Academy of Agricultural Sciences, Jinhua, China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Zhou
authors.affiliation: State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Sciences, Hangzhou, China.
authors.forename: Xusong
authors.initials: X
authors.lastname: Zheng
authors.affiliation: Jinhua Research Academy of Agricultural Sciences, Jinhua, China.
authors.forename: Yujian
authors.initials: Y
authors.lastname: Sun
authors.affiliation: State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Sciences, Hangzhou, China.
authors.forename: Yajun
authors.initials: Y
authors.lastname: Yang
authors.affiliation: State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Sciences, Hangzhou, China.
authors.forename: Junce
authors.initials: J
authors.lastname: Tian
authors.affiliation: State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Sciences, Hangzhou, China.
authors.forename: Zhongxian
authors.initials: Z
authors.lastname: Lu
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D000818:Animals; D001522:Behavior, Animal; D050260:Carbohydrate Metabolism; D005260:Female; D006430:Hemiptera / Q000469:parasitology / Q000502:physiology* / Q000821:virology; D058507:Host Specificity; D006790:Host-Parasite Interactions; D007303:Insect Vectors / Q000469:parasitology / Q000502:physiology* / Q000821:virology; D008297:Male; D055442:Metabolome; D012275:Oryza / Q000378:metabolism* / Q000469:parasitology / Q000821:virology; D010063:Ovum / Q000821:virology; D010935:Plant Diseases / Q000469:parasitology / Q000821:virology*; D010942:Plant Viruses; D011158:Population Growth
chemical_list: D000596:Amino Acids