| whitefly transmission of sweet potato viruses. | three genera of plant viruses, begomovirus (geminiviridae), crinivirus (closteroviridae) and ipomovirus (potyviridae), contain members that infect sweet potato (ipomoea batatas) and are transmitted by whiteflies. the begomoviruses, sweet potato leaf curl virus (splcv) and ipomoea leaf curl virus (ilcv), and the ipomovirus sweet potato mild mottle virus are transmitted by bemisia tabaci, the sweet potato whitefly. the crinivirus, sweet potato chlorotic stunt virus (spcsv), is transmitted by b. ta ... | 2004 | 15036843 |
| co-infection by two criniviruses alters accumulation of each virus in a host-specific manner and influences efficiency of virus transmission. | tomato chlorosis virus (tocv), and tomato infectious chlorosis virus (ticv), family closteroviridae, genus crinivirus, cause interveinal chlorosis, leaf brittleness, and limited necrotic flecking or bronzing on tomato leaves. both viruses cause a decline in plant vigor and reduce fruit yield, and are emerging as serious production problems for field and greenhouse tomato growers in many parts of the world. the viruses have been found together in tomato, indicating that infection by one criniviru ... | 2008 | 19000010 |
| epidemiology and genetic diversity of criniviruses associated with tomato yellows disease in greece. | tomato chlorosis virus (tocv) and tomato infectious chlorosis virus (ticv) are two whitefly transmitted viruses which are classified in the genus crinivirus of the family closteroviridae. both induce similar yellowing symptoms in tomato and are responsible for severe economic losses. tocv is transmitted by bemisia tabaci gennadious, trialeurodes vaporariorum westwood and trialeurodes abutilonea haldeman, whereas ticv is transmitted only by t. vaporariorum. an extensive study was conducted during ... | 2014 | 24370865 |
| torradoviruses are transmitted in a semi-persistent and stylet-borne manner by three whitefly vectors. | members of the genus torradovirus (family secoviridae, type species tomato torrado virus, totv) are spherical plant viruses transmitted by the whitefly species trialeurodes vaporariorum and bemisia tabaci. knowledge on the mode of vector transmission is lacking for torradoviruses. here, the mode of transmission was determined for tomato marchitez virus (tomarv). a minimal acquisition access period (aap) and inoculation access period (iap) of approximately 2h each was required for its transmissio ... | 2014 | 24342139 |
| characterization of differences between whiteflies using rapd-pcr. | the b biotype of the sweetpotato whitefly, bemisia tabaci (gennadius) has caused over $200 million in crop damage in the us during 1992. the taxonomic classification of the a and b biotypes of b. tabaci is unclear. we used rapd-pcr to demonstrate dna differences between the a and b biotypes of this insect. all twenty of the rapd primers tested distinguished readily between the biotypes. dna extracted from individual eggs and nymphs showed identical differences. rapd-based genetic similarity stat ... | 1993 | 9087541 |
| mycosis of bandedwinged whitefly (trialeurodes abutilonea) (homoptera: aleyrodidae) caused by orthomyces aleyrodis gen. & sp. nov. (entomophthorales: entomophthoraceae). | a new genus and species of fungus, orthomyces aleyrodis steinkraus, humber & oliver gen. & sp. nov. (entomophthorales: entomophthoraceae) is described. in 1994 and 1995, this fungus caused epizootics in high populations of bandedwinged whitefly (trialeurodes abutilonea) on cotton and cocklebur in alabama. in 1996, t. abutilonea populations were lower and no infected specimens were found. this is the first report of an entomophthoralean infecting an aleyrodid in the new world and the first report ... | 1998 | 9647695 |
| relations between whitefly and sweetpotato tissue in transmission of yellow dwarf virus. | one approach revealed the nature of the piercing-sucking-feeding mechanism of the abutilon whitefly, trialeurodes abutilonea, a new vector of sweetpotato yellow dwarf virus. it showed the complete stylet from its origin in the rostrum to its termination in the plant's translocation stream. another approach clearly delineated and confirmed the life cycle of the abutilon whitefly in relation to physical function and duration of each of the six stages. | 1961 | 17809947 |