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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Trichoplusia"”.
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A study of the fine structure and the function of the ocellus of the adult cabbage looper (Trichoplusia ni, Hübner) (lepidoptera: noctuidae)
The structure of the cabbage looper ocellus was examined by light and electron microscopy. Rhabdoms were found in the distal region of the retinula cells. These were formed by the apposition of microvillar borders of adjacent cells, thus, an interrupted network of rhabdoms was found to exist in …
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Effects of Nutrients and Minerals on Growth and Detoxification in Phytophagous Insects
… exposed to prooxidant secondary chemicals. In Trichoplusia ni, a generalist herbivore, vitamin A ameliorates phototoxicity caused by ingesting citral, an insecticidal monoterpene. As an antioxidant, vitamin A may protect against UV-mediated citral damage by scavenging free radicals or quenching …
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Effects of low intensity magnetic fields on cabbage loopers
… were studied using the cabbage looper moth, Trichoplusia ni (Hubner). In the first tests, adult loopers were used to determine their locational preference in response to areas of stronger or weaker magnetic field ranging from slightly above the geomagnetic field strength to a strength of 120 …
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Effect of electrostatic fields on insects: the housefly and cabbage looper
… on insects were studied using cabbage loopers, Trichoplusia ni (Hubner) and houseflies, Musca domestica L. Two series of tests were conducted; one to determine the electrostatic field effect on the locational preference and the other to determine the field effect on wingbeat. Among the field …
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Efecto del asocio maíz {Zea rnays) - tomate (Lycopersicon esculentum) en la incidencia de mosca blanca (Bemisia tobad) y otras plagas del tomate
… cachón (Manduca sexta) gusano falso medidor (Trichoplusia mí), gusano elotero (Heliothis zea), chinche saltona (Alticus bracteatus) y pulgones (Aphidia del orden Homóptera). Para el caso de ninfas de mosca blanca, se efectúo un muestreo, único a los 65 días después del transplante, para …
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Effects of resveratrol on development of three lepidopteran species varying in diet breadth
… that produce resveratrol, the cabbage looper Trichoplusia ni (Noctuidae), a polyphagous folivore that rarely encounters the compound in its host plants, and the tobacco hornworm Manduca sexta (Sphingidae), an oligophagous folivore that feeds almost exclusively on species in the Solanaceae, …
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The Effects of Synthetic and Naturally Occurring Compounds on Microsporidian Infection in Insects
… a linear furanocoumarin, delayed death in Trichoplusia ni caterpillars infected with Vairimorpha sp. (T. ni isolate). This delay in death is due to indirect effects. Xanthotoxin does not directly inhibit microsporidian development or invasion of the host, but rather inhibits one of five …
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Diagnóstico de plagas y enemigos naturales en el cultivo del ajonjolí (Sesamum indicum L.) durante el ciclo 1997/1998 en cuatro comunidades del departamento de León, Nicaragua
… fueron Estigmene acrea, Spodoptera sunia, Trichoplusia ni, Diabrotica balteata, Cerotoma sp y chinches fitófagos como Nezara viridula, Euchistus sp, Stenocoris sp y Hyalimenus sp, al comparar la calidad de los granos secados en el campo y bajo condiciones controladas, después del análisis …
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Evaluation of the potential of Pteromalus puparum (L.) (Hymenoptera: Pteromalidae) for suppression of the imported cabbageworm and parasitism of the diamondback moth
… <i>Artogeia rapae</i> (L.)), cabbage looper <i>Trichoplusia ni</i> (Hubner)) and diamondback moth (<i>Plutella xylostella</i> (L.)) was determined in 1982 to 1984 on cabbage in southwest Virginia. The imported cabbageworm was the most important pest. It had one and a partial second generation in …
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Hydrogen peroxide from photosynthesis: Theory and experiments linking elevated atmospheric CO2 with C3 plant chemical defense
… plants were paired with larval cabbage looper, Trichoplusia ni. The pattern of induction of defense hormones salicylic and jasmonic acid was consistent with experimental predictions, in that growth under variable CO2 and variable light yielded patterns unique to each environment. In particular, …
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Host specific gene expression of the baculovirus, Spodoptera frugiperda nuclear polyhedrosis virus, in insect cell lines
… (SF IPLB-21) cells but semipermissively infects Trichoplusia ni 368 (TN-368) cells. Previous electron microscopy data showed that in the semipermissive infection virogenic stroma is formed, indicating that infection is initiated and some subunits are synthesized (16). However, nucleocapsid …
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Maintaining the balance: persistent baculovirus infection in insect cells
… led to the creation of a persistently infected Trichoplusia ni cell line (Hi5) with an AcMNPV p10-deletion mutant (AcUW1.lacZ). From this culture, a clonal cell line (C20) was established that has been maintained to this day. This thesis aimed to use C20 to further our knowledge of the fine …
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Regulation of late and very late gene expression in both lytic and persistent baculovirus infections
… infections utilising an in vitro system, the Trichoplusia ni C20 cell line that supports the continuous replication of low-level infection of AcMNPV lacking p10. It could be determined that all AcMNPV genes were expressed in C20 cells at low levels but without distinct temporal phases or shut …
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Local impacts of White-nose Syndrome on the foraging ecology of insectivorous bats
… body size, and wing presence. Laboratory-reared Trichoplusia ni moths were grouped into large and small size classes, and wings were removed from half the moths in each size class. Bomb calorimetry was used to determine the gross heat (cal/g) of moths in each treatment. To account for potential …
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Constraints on plant resistance and tolerance trade-offs
… support this contention; insect leaf-feeding by Trichoplusia ni elicited a compensatory response similar to that elicited by mammalian herbivores - an ecotype-specific response dependent upon the level of endoreduplication. In addition, the interactive effects of mammalian and insect herbivory on …
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Identifying mechanisms of pyrethroid resistance in the navel orangeworm and novel methods of control
… with Bombyx mori, Plutella xylostella, and Trichoplusia ni, which are the only lepidopterans with fully annotated COEs. I identified an expansion in the number of alpha-esterases in A. transitella, which is consistent with all other lepidopteran insects described to date. Among the …
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Specificity in the ecology and evolution of plant defense against herbivores: Identity and history
Biotic interactions can structure communities, drive succession, and account for patterns of biodiversity, yet we currently know little about how multiple biotic factors interact to influence traits in ecological and evolutionary time. Moreover, variation in biotic interactions among native and …
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