| transformation of internal extracellular bacteria isolated from rhagoletis completa cresson gut with enhanced green fluorescent protein. | we discovered zeocintrade mark is an effective antibiotic against enterobacter agglomerans and klebsiella pneumoniae strains isolated from the walnut husk fly (rhagoletis completa cresson: family tephritidae) and that bleomycin resistance can be used as a selective marker in transforming plasmids. we transformed ent. agglomerans and k. pneumoniae strains originally isolated from their close association with r. completa gut to produce enhanced green fluorescent protein, a variant of green fluores ... | 2000 | 10827278 |
| transformed bacterial symbionts re-introduced to and detected in host gut. | strains of enterobacter agglomerans and klebsiella pneumoniae isolated from rhagoletis completa cresson were engineered to express transgenic fluorescent proteins (ecfp, dsred). these bacteria were introduced into flies by feeding the flies a sucrose solution in which the bacteria were suspended. the transgenic and heterologous marker protein was expressed and visible in the bacteria after they were ingested by whf and while they were in the fly gut. we describe the plasmids used to transform th ... | 2002 | 12029526 |
| identification of walnut husk (juglans regia l.) volatiles and the behavioural response of the invasive walnut husk fly, rhagoletis completa cresson. | several european countries are important walnut (juglans regia l.) producers. however, these countries must contend with the recent introduction of the walnut husk fly, rhagoletis completa cresson (diptera, tephritidae), which is causing severe economic losses, especially in organic production. because most tephritid fruit flies use kairomones in their search for host plants, we hypothesise that this highly specialist species orients toward the volatile blend released by walnut husks. | 2017 | 28374545 |
| psyttalia cf. concolor (hymenoptera: braconidae) for biological control of olive fruit fly (diptera: tephritidae) in california. | the larval parasitoid, psyttalia cf. concolor (szépligeti), reared on mediterranean fruit fly, ceratitis capitata (weidemann), by the usda-aphis-ppq, guatemala city, guatemala, was imported into california for biological control of olive fruit fly, bactrocera oleae (gmelin), in olives, olea europaea l. mean percentage parasitism of olive fruit fly third instars infesting fruit in field cages ranged from 7.0 in grapevine to 59.7 in santa barbara and in free releases ranged from 0 in grapevine to ... | 2008 | 18559183 |
| green fluorescent protein (gfp)-labeling of enterobacteria associated with fruit flies (diptera: tephritidae) and persistence in their natural host rhagoletis completa cresson. | fruit flies (diptera: tephritidae) are a highly successful, widespread group of insects that cause economic damage in agriculture. data available so far on the composition of the bacterial community associated with their digestive tract indicate that members of enterobacteriaceae are the species most often isolated. bacteria naturally occurring in insect guts may be engineered and used to study the spatial and functional interactions of microbes within the insect system and offer one route to me ... | 2011 | 22004066 |
| host status of fresh prunes by potential quarantine pests in laboratory tests and evaluation of packinghouse culls. | the status of fresh prunes, prunus domestica l., as a host for codling moth, cydia pomonella (l.) (lepidoptera: tortricidae); peach twig borer, anarsia lineatella zeller (lepidoptera: gelechiidae); omnivorous leafroller, platynota stultana walshingham (lepidoptera: tortricidae); oriental fruit moth, grapholita molesta (busck) (lepidoptera: tortricidae); navel orangeworm, amyelois transitella (walker) (lepidoptera: pyralidae); and walnut husk fly, rhagoletis completa cresson (diptera: tephritidae ... | 1999 | 10333755 |
| post-colonization temporal genetic variation of an introduced fly, rhagoletis completa. | evolutionary biologists have been puzzled by the success of introduced species: despite founder effects that reduce genetic variability, invasive species are still successful at colonizing new environments. it is possible that the evolutionary processes during the post-colonization period may increase the genetic diversity and gene flow among invasive populations over time, facilitating their long-term success. therefore, genetic diversity and population structure would be expected to show great ... | 2010 | 20824307 |
| is the alpine divide becoming more permeable to biological invasions? - insights on the invasion and establishment of the walnut husk fly, rhagoletis completa (diptera: tephritidae) in switzerland. | the walnut husk fly, rhagoletis completa cresson (diptera: tephritidae), is native to north america (midwestern us and north-eastern mexico) and has invaded several european countries in the past decades by likely crossing the alpine divide separating most parts of switzerland from italy. here, we determined its current distribution in switzerland by sampling walnuts (juglans regia l.) in ecologically and climatically distinct regions along potential invasion corridors. r. completa was found to ... | 2011 | 21320363 |
| are bottlenecks associated with colonization? genetic diversity and diapause variation of native and introduced rhagoletis completa populations. | the success of invasive species appears to be a paradox: despite experiencing strong population bottlenecks, invasive species are able to successfully establish in new environments. we studied how the walnut husk fly, rhagoletis completa, was able to successfully colonize california from the midwestern united states, by examining genetic diversity and diapause variation of native and introduced fly populations. climate plays an important role in the successful establishment of introduced insects ... | 2006 | 16858586 |
| genetic changes coinciding with the colonization of california by the walnut husk fly, rhagoletis completa. | | 1984 | 28555821 |