| wolbachia infection complexity among insects in the tropical rice-field community. | wolbachia are a group of intracellular bacteria that cause reproductive alterations in their arthropod hosts. widely discordant host and wolbachia phylogenies indicate that horizontal transmission of these bacteria among species sometimes occurs. a likely means of horizontal transfer is through the feeding relations of organisms within communities. feeding interactions among insects within the rice-field insect community have been well documented in the past. here, we present the results of a po ... | 2003 | 12753223 |
| rice stripe mosaic virus, a novel cytorhabdovirus infecting rice via leafhopper transmission. | a new rice viral disease exhibiting distinct symptoms-yellow stripes, mosaic and twisted tips on leaves-was found in china. electron microscopy of infected leaf cells revealed the presence of bacilliform virions and electron-translucent granular-fibrillar viroplasm in the cytoplasm. the enveloped viral particles were 300 to 375 nm long and 45 to 55 nm wide. the leafhopper recilia dorsalis was able to transmit the virus to rice seedlings, which subsequently exhibited symptoms similar to those obs ... | 2016 | 28101087 |
| transmission biology of rice stripe mosaic virus by an efficient insect vector recilia dorsalis (hemiptera: cicadellidae). | rice stripe mosaic virus (rsmv) is a newly discovered species of cytorhabdovirus infecting rice plants that is transmitted by the leafhopper recilia dorsalis. in this study, the transmission characteristics of rsmv by r. dorsalis were investigated. under suitable growth conditions for r. dorsalis, the rsmv acquisition rate reached 71.9% in the second-generation population raised on rsmv-infected rice plants. the minimum acquisition and inoculation access periods of r. dorsalis were 3 and 30 min, ... | 2017 | 29312171 |
| interaction between non-structural protein pns10 of rice dwarf virus and cytoplasmic actin of leafhoppers is correlated with insect vector specificity. | many insect-transmissible pathogens are transmitted by specific insect species and not by others, even if the insect species are closely related. the molecular mechanisms underlying such strict pathogen-insect specificity are poorly understood. rice dwarf virus (rdv), a plant reovirus, is transmitted mainly by the leafhopper species nephotettix cincticeps but is transmitted ineffectively by the leafhopper recilia dorsalis. here, we demonstrated that virus-containing tubules composed of viral non ... | 2015 | 25502650 |
| rice gall dwarf virus exploits tubules to facilitate viral spread among cultured insect vector cells derived from leafhopper recilia dorsalis. | rice gall dwarf virus (rgdv), a member of the family reoviridae, causes repeated epidemics in rice fields in southern china. an rgdv isolate collected from guangdong province (southern china) is mainly transmitted by leafhopper vector recilia dorsalis in a persistent-propagative manner. the infection by rgdv induces the formation of virus-containing tubules in the plant host and insect vector. in this study, we established continuous cell cultures of the leafhopper r. dorsalis to investigate the ... | 2013 | 23888157 |
| assembly of viroplasms by viral nonstructural protein pns9 is essential for persistent infection of rice gall dwarf virus in its insect vector. | rice gall dwarf virus (rgdv), a plant reovirus, is transmitted by leafhopper vector recilia dorsalis in a persistent-propagative manner. in a sequential study of rgdv infection of its insect vector, the virus initially infected the filter chamber epithelium, then directly crossed the basal lamina into the visceral muscles, from where it spread throughout the entire midgut and hindgut. finally, rgdv spread into the salivary glands. during rgdv infection of the continuous cultured cells of r. dors ... | 2015 | 25455335 |
| small interfering rna pathway modulates persistent infection of a plant virus in its insect vector. | plant reoviruses, rhabdoviruses, tospoviruses, and tenuiviruses are transmitted by insect vectors in a persistent-propagative manner. how such persistent infection of plant viruses in insect vectors is established and maintained remains poorly understood. in this study, we used rice gall dwarf virus (rgdv), a plant reovirus, and its main vector leafhopper recilia dorsalis as a virus-insect system to determine how the small interference (sirna) pathway modulates persistent infection of a plant vi ... | 2016 | 26864546 |
| filamentous structures induced by a phytoreovirus mediate viral release from salivary glands in its insect vector. | numerous viral pathogens are persistently transmitted by insect vectors and cause agricultural or health problems. these viruses circulate in the vector body, enter the salivary gland, and then are released into the apical plasmalemma-lined cavities where saliva is stored. the cavity plasmalemma of vector salivary glands thus represents the last membrane barrier for viral transmission. here, we report a novel mechanism used by a persistent virus to overcome this essential barrier. we observed th ... | 2017 | 28381575 |
| virus-induced tubules: a vehicle for spread of virions into ovary oocyte cells of an insect vector. | many arthropod-borne viruses are persistently propagated and transovarially transmitted by female insect vectors through eggs, but the mechanism remains poorly understood. insect oocytes are surrounded by a layer of follicular cells, which are connected to the oocyte through actin-based microvilli. here, we demonstrate that a plant reovirus, rice gall dwarf virus (rgdv), exploits virus-containing tubules composed of viral non-structural protein pns11 to pass through actin-based junctions between ... | 2017 | 28382031 |
| transmission of sugarcane white leaf phytoplasma by yamatotettix flavovittatus, a new leafhopper vector. | sugarcane white leaf disease is caused by plant pathogenic phytoplasmas that are transmitted to the plant by the leafhopper matsumuratettix hiroglyphicus (matsumura). to determine whether there are other insect vectors that transmit this disease pathogen, leafhopper species in sugarcane, saccharum officinarum l., fields in northeastern thailand were monitored by using light traps. sixty-nine leafhopper species from family cicadellidae were found. using nested polymerase chain reaction (pcr) with ... | 2006 | 17066780 |