The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Maolin Hou - One of the best experts on this subject based on the ideXlab platform.
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Proteomic analysis of watery saliva secreted by white-backed planthopper, Sogatella furcifera.
PloS one, 2018Co-Authors: Yu-tong Miao, Yao Deng, Hao-kang Jia, Yu-di Liu, Maolin HouAbstract:The white-backed planthopper, Sogatella furcifera, is a phloem sap feeder that secretes watery and gelling saliva during feeding. In this study, we identified the major proteins in watery saliva of S. furcifera by shotgun LC-MS/MS analysis combined with transcriptomic analysis. A total of 161 proteins were identified, which were divided into 8 function categories, including enzymes, transporter, calcium ion binding protein, salivary sheath protein, cytoskeleton protein, DNA-, RNA-, and protein-binding or regulating proteins, other non-enzyme proteins and unknown proteins. Gene expression pattern of 11 secretory proteins were analyzed by real time quantitative-PCR. We detected the mucin-like protein, which had a unique expression level in salivary gland, most likely to be a candidate effector involved in regulation of plant defense. This study identified the watery saliva component of S. furcifera and it provided a list of proteins which may play a role in interaction between S. furcifera and rice.
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Asymmetric Spread of SRBSDV between Rice and Corn Plants by the Vector Sogatella furcifera (Hemiptera: Delphacidae) - Fig 4
2016Co-Authors: Yongqiang Han, Lang Yang, Xiaolan Liao, Maolin HouAbstract:Honeydew production of Sogatella furcifera adults (A) and nymphs (B) feeding for 24 h on rice and corn plants. Values are means + 95% CI from 24 replicates. Different letters over the bars indicate significant difference (P < 0.05) by Student t-test.
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Sequential EPG variable values of the probing behavior of Sogatella furcifera nymphs and adults feeding on rice and corn plants during an eight-hour recording.
2016Co-Authors: Yongqiang Han, Lang Yang, Xiaolan Liao, Maolin HouAbstract:Sequential EPG variable values of the probing behavior of Sogatella furcifera nymphs and adults feeding on rice and corn plants during an eight-hour recording.
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Non-sequential EPG variable values of the probing behavior of Sogatella furcifera nymphs and adults feeding on rice and corn plants during an eight-hour recording.
2016Co-Authors: Yongqiang Han, Lang Yang, Xiaolan Liao, Maolin HouAbstract:Non-sequential EPG variable values of the probing behavior of Sogatella furcifera nymphs and adults feeding on rice and corn plants during an eight-hour recording.
Xifeng Wang - One of the best experts on this subject based on the ideXlab platform.
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Sogatella furcifera hepe-like virus: First member of a novel Hepeviridae clade identified in an insect.
Virus research, 2018Co-Authors: Peipei Zhang, Wenwen Liu, Xifeng WangAbstract:Abstract A novel virus was identified in the white-backed planthopper (Sogatella furcifera, Hemiptera: Delphacidae) and tentatively named Sogatella furcifera hepe-like virus (SfHeV). Its genome is a linear, single-stranded monopartite RNA, 7,312 nucleotides (nt) long with a 66-nt 5′ UTR, 54-nt 3′ UTR, and 28-nt polyA, showing typical genomic features of viruses in the family Hepeviridae, but highly divergent from known members in the family, with amino acid sequence identities of only 18.9–23% (ORF1), 13.1–18.8% (ORF2) and 1.9–11% (ORF3). Phylogenetic analysis revealed that SfHeV was closer to cutthroat trout virus (CTV), but did not cluster with any members of the family. SfHeV is the first hepe-like virus identified in a hemipteran insect and was detected in all developmental stages suggesting the presence of some level of vertical transmission. On the basis of these data, we propose that SfHeV represents a novel clade in the family Hepeviridae and tentatively name the genus Insecthepevirus.
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Two novel totiviruses in the white-backed planthopper, Sogatella furcifera
Journal of General Virology, 2018Co-Authors: Peipei Zhang, Sebastien Massart, Xifeng WangAbstract:There is little information about commensal viruses in the white-backed planthopper, Sogatella furcifera, although it is an important agricultural insect. Here, two novel double-stranded RNA viruses related to the viruses in the family Totiviridae were identified using next-generation sequencing and tentatively named Sogatella furcifera totivirus 1 and 2 (SfTV1 and SfTV2). Their complete genomes consist of 6310 and 6303 nt, respectively, showing typical genomic features with viruses in the family Totiviridae. Identity, phylogenetic and conserved sequence analyses showed that SfTV1, SfTV2 and three other insect viruses may form a proposed novel genus of the family Totiviridae. Vertical transmission of the two viruses was highly efficient, and they were detected in all insect tissues and developmental stages, with the highest titres in the adult and in the haemolymph and reproductive organs. To our knowledge, this is the first report of viruses in the family Totiviridae found in a hemipteran insect.
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Sequence analysis and genomic organization of a new insect iflavirus, Sogatella furcifera honeydew virus 1.
Archives of virology, 2018Co-Authors: Peipei Zhang, Wenwen Liu, Mengji Cao, Xifeng WangAbstract:A novel iflavirus, tentatively named “Sogatella furcifera honeydew virus 1” (SFHV1), discovered through transcriptome sequencing analysis of white-backed planthoppers (Sogatella furcifera) collected in southern China, is described here. The full genome of SFHV1 is 10,837 nucleotides (nt) long, including the polyA tail, and shares 65.5% and 64.5% genomic identity with Laodelphax striatellus picorna-like virus 2 and Laodelphax striatella honeydew virus 1, respectively. On the basis of the phylogenetic analysis of the complete genomic sequence and the deduced RdRp amino acid sequence of SFHV1 with other iflaviruses, we suggest that it is a member of a new species in the genus Iflavirus, family Iflaviridae.
Peipei Zhang - One of the best experts on this subject based on the ideXlab platform.
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Sogatella furcifera hepe-like virus: First member of a novel Hepeviridae clade identified in an insect.
Virus research, 2018Co-Authors: Peipei Zhang, Wenwen Liu, Xifeng WangAbstract:Abstract A novel virus was identified in the white-backed planthopper (Sogatella furcifera, Hemiptera: Delphacidae) and tentatively named Sogatella furcifera hepe-like virus (SfHeV). Its genome is a linear, single-stranded monopartite RNA, 7,312 nucleotides (nt) long with a 66-nt 5′ UTR, 54-nt 3′ UTR, and 28-nt polyA, showing typical genomic features of viruses in the family Hepeviridae, but highly divergent from known members in the family, with amino acid sequence identities of only 18.9–23% (ORF1), 13.1–18.8% (ORF2) and 1.9–11% (ORF3). Phylogenetic analysis revealed that SfHeV was closer to cutthroat trout virus (CTV), but did not cluster with any members of the family. SfHeV is the first hepe-like virus identified in a hemipteran insect and was detected in all developmental stages suggesting the presence of some level of vertical transmission. On the basis of these data, we propose that SfHeV represents a novel clade in the family Hepeviridae and tentatively name the genus Insecthepevirus.
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Two novel totiviruses in the white-backed planthopper, Sogatella furcifera
Journal of General Virology, 2018Co-Authors: Peipei Zhang, Sebastien Massart, Xifeng WangAbstract:There is little information about commensal viruses in the white-backed planthopper, Sogatella furcifera, although it is an important agricultural insect. Here, two novel double-stranded RNA viruses related to the viruses in the family Totiviridae were identified using next-generation sequencing and tentatively named Sogatella furcifera totivirus 1 and 2 (SfTV1 and SfTV2). Their complete genomes consist of 6310 and 6303 nt, respectively, showing typical genomic features with viruses in the family Totiviridae. Identity, phylogenetic and conserved sequence analyses showed that SfTV1, SfTV2 and three other insect viruses may form a proposed novel genus of the family Totiviridae. Vertical transmission of the two viruses was highly efficient, and they were detected in all insect tissues and developmental stages, with the highest titres in the adult and in the haemolymph and reproductive organs. To our knowledge, this is the first report of viruses in the family Totiviridae found in a hemipteran insect.
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Sequence analysis and genomic organization of a new insect iflavirus, Sogatella furcifera honeydew virus 1.
Archives of virology, 2018Co-Authors: Peipei Zhang, Wenwen Liu, Mengji Cao, Xifeng WangAbstract:A novel iflavirus, tentatively named “Sogatella furcifera honeydew virus 1” (SFHV1), discovered through transcriptome sequencing analysis of white-backed planthoppers (Sogatella furcifera) collected in southern China, is described here. The full genome of SFHV1 is 10,837 nucleotides (nt) long, including the polyA tail, and shares 65.5% and 64.5% genomic identity with Laodelphax striatellus picorna-like virus 2 and Laodelphax striatella honeydew virus 1, respectively. On the basis of the phylogenetic analysis of the complete genomic sequence and the deduced RdRp amino acid sequence of SFHV1 with other iflaviruses, we suggest that it is a member of a new species in the genus Iflavirus, family Iflaviridae.
Jiaan Cheng - One of the best experts on this subject based on the ideXlab platform.
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Adaptation of Sogatella furcifera to insect-resistant rice variety N22
Ying yong sheng tai xue bao = The journal of applied ecology, 2003Co-Authors: Jianming Chen, Linyong Tao, Xusong Zheng, Jiaan ChengAbstract:The adaptation of whitebacked planthopper (WBPH) Sogatella furcifera to insect-resistant rice variety N 22 and the variation of its protective enzyme were studied by rearing it successively two generations on N 22 and insect-susceptible rice variety TN 1 in laboratory. The results showed that after reared on TN 1 or N 22 for one or two generations, its egg period, nymphal duration, and total generation period had no significant difference. The ecological parameters, e.g., nymphal survival rate, body weight, amount of honey dew, egg number, and innate increasing rate of WBPH transferred from TN 1 to N 22 and reared for one generation were lower than those of WBPH reared on N 22 successively for two generations, and the latter was lower than that reared on TN 1. The activities of superoxide dismutase (SOD) and catalase (CAT) in protective enzyme system of the 2nd generation WBPH on N 22 were similar to those of the pest on TN 1, indicating that S. furcifera could adapt to insect-resistant variety N 22 after rearing it successively for several generations.
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Insecticide resistance of different populations of white-backed planthopper, Sogatella furcifera (Horváth) (Homoptera:Delphacidae)
Ying yong sheng tai xue bao = The journal of applied ecology, 2002Co-Authors: Hongwei Yao, Caiying Jiang, Jiaan ChengAbstract:Resistance to some insecticides used commonly in different populations of the white-backed planthopper, Sogatella furcifera collected from Zhejiang, Guangxi, Yunnan and Hainan Province in China was measured. The specific activities of some resistance-associated enzymes, i.e. esterase, carboxylesterase, glutathione S-transferase and acetylcholinesterase from these populations were also measured. The resistant levels to malathion, methamidophos, isoprocarb and buprofezin were markedly higher in Yunnan and Hainan populations than in other populations, but considerably more heterogeneity in response to insecticides was found in Zhejiang and Guangxi populations. The specific activities of the enzymes were obviously higher in Zhejiang and Guangxi populations than in Yunnan and Hainan populations, and the distribution range of the enzyme activity was the widest in Zhejiang population, and the narrowest in Guangxi population. Finally, The relationship between the long-distance migration and the territorial difference in insecticide resistant level and activities of the enzymes in the populations of this planthopper was discussed.
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host recognition kairomone from Sogatella furcifera for the parasitoid anagrus nilaparvatae
Entomologia Experimentalis Et Applicata, 2001Co-Authors: Jiaan ChengAbstract:A kairomone produced by the rice white-backed planthopper Sogatella furcifera (Horvath) for the mymarid egg parasitoid Anagrus nilaparvatae Pang et Wang was investigated. Eggs, female and male adults, nymphs, exuvia, honeydew, nymph-damaged plants and plants with S. furcifera eggs all elicited searching behavior in the parasitoid. Eggs, female adults and plants with eggs were the most attractive, while exuvia and honeydew evoked the weakest responses. The active compound(s) from S. furcifera female adults, nymphs and plants with eggs could be effectively extracted with methanol, acetone, n-hexane, ethyl ether and dichloromethane. Isolation of the active chemical (s) in three solvent extracts, the acetone and n-hexane extracts of S. furcifera female adults, and the acetone extract of S. furcifera nymphs, was accomplished by thin-layer chromatography. Only one fraction was active and had the same chemical properties in the three solvent extracts. Infra-red analysis of this fraction revealed a kind of ester with saturated and unsaturated fatty acids, which was previously found to be active in the same compound as the extracts from the nymphs and female adults of the rice brown planthopper, Nilaparvata lugens (Stal), and identified as palm oil. The results are discussed in relation to host location by A. nilaparvatae.
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Optimal strategies for management of white-backed planthopper, Sogatella furcifera, on second season rice in Zhejiang, China: dynamic programming approach.
Agricultural Systems, 1997Co-Authors: Zeng-rong Zhu, Jiaan ChengAbstract:The dynamic programming approach was applied to select the optimal management strategies, expressed as multidimensional and dynamic economic thresholds (MDDETs), for controlling the white-backed planthopper, Sogatella furcifera, a major insect pest of rice, on the second cropping season rice in Zhejiang, China. The results can be used to give practical advice in the chemical control of the S. furcifera. The MDDETs vary with biological and socio-economic factors, implying the importance for decision making of estimating population growth rates, injury coefficients and expected gross income of each season's crop.
Masaya Matsumura - One of the best experts on this subject based on the ideXlab platform.
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Insecticide susceptibilities of the two rice planthoppers Nilaparvata lugens and Sogatella furcifera in East Asia, the Red River Delta, and the Mekong Delta
'Wiley', 2018Co-Authors: Masaya MatsumuraAbstract:BACKGROUNDThe two rice planthoppers, Nilaparvata lugens and Sogatella furcifera, have different life cycles in the regions of East Asia, the Red River Delta, and the Mekong Delta. The susceptibilities of these species to a range of insecticides have not previously been compared among the three regions over multiple years. Here, we describe the differences and similarities in insecticide susceptibilities of the two species among the three regions in 2006-2011
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Genetic analysis of a threshold trait: density-dependent wing dimorphism in Sogatella furcifera (Horváth) (Hemiptera: Delphacidae), the whitebacked planthopper
Heredity, 1996Co-Authors: Masaya MatsumuraAbstract:Genetic analysis of a threshold trait: density-dependent wing dimorphism in Sogatella furcifera (Horvath) (Hemiptera: Delphacidae), the whitebacked planthopper