Chemical Aspects of Growth and Development in Insects

C, L'helias

doi:10.1016/b978-0-12-395538-8.50039-2

Cited by 5 publications

(1 citation statement)

References 222 publications

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“…Juvenile hormone may therefore coordinate the nutritive state of honeybee larva with its respiratory status by activating the metabolic machinery that allows the conversion of food into chemical energy (Rachinsky et al, 1990). Furthermore, in other insects, juvenile hormone has been implicated in the transfer and utilization of stored products to generate the energy for larval growth (L'Hélias, 1970;Locke, 1980) and to direct the induction of the increase in respiration rate (L'Hélias, 1970;Asencot and Lensky, 1976).…”

Section: Juvenile Hormone and Queen Determinationmentioning

confidence: 99%

Differential expression of mitochondrial genes between queens and workers during caste determination in the honeybeeApis mellifera

Corona

Estrada

Zurita

1999

Journal of Experimental Biology

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The nourishment received by female honeybee larvae determines their differentiation into queens or workers. In this study, we report the first molecular analysis of differences that occur between queens and workers during the caste-determination process. RNA-differential display experiments identified a clone that encodes for a gene that is homologous to the nuclear-encoded mitochondrial translation initiation factor (AmIF-2mt). Semi-quantitative analysis by reverse transcriptase/polymerase chain reaction (RT-PCR) throughout honeybee development detected a higher level of expression of this gene in queen larvae than in worker larvae. Analysis of two other genes encoding mitochondrial proteins, cytochrome oxidase subunit 1 (COX-1; mitochondrial-encoded) and cytochrome c (cyt c; nuclear-encoded) also showed differential expression of these two genes between queens and workers. In particular, the cyt c transcript is more abundant in queen larvae and throughout the metamorphosis of the queen. These results indicate that the higher respiratory rate previously documented in queen larvae is accomplished through a higher level of expression of both nuclear- and mitochondrial-encoded genes for mitochondrial proteins.

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Section: Juvenile Hormone and Queen Determinationmentioning

confidence: 99%

Differential expression of mitochondrial genes between queens and workers during caste determination in the honeybeeApis mellifera

Corona

Estrada

Zurita

1999

Journal of Experimental Biology

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Postembryonic Development

Richards¹,

Davies²

1977

IMMS’ General Textbook of Entomology

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Studies on carbohydrate, protein and lipid levels in normal and stress conditions in fat body and integument as compared to whole body during development of rice moth, Corcyra cephalonica (St.)

Mandal

Chaudhuri

1992

Int. J. Trop. Insect Sci.

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Incorporated in this paper were the results of a study made on the quantitative variation of total carbohydrate, protein and Iipid in whole body, fat body and integument of the larval and pupal developmental stages in rice moth, Corcyra cephalonica (St.) a storage grain pest. All three macromolecules referred to in case of whole body, exhibited a progressively decreasing trend from larva to pupa. In fat body total carbohydrate and protein contents were more in pupa than larva, while in integument the said nutrients were less in pupa than larva, showing the reverse results. The lowering down of the nutrients' level under stress caused by pyrethrum (a botanical insecticide) was also observed. The physiological and statistical significance of these findings was discussed.Resume-On trouvera dans cette these les resultats d'une etude faite sur la variation quantitative de la totalite de carbohydrate, protein et Iipid dans le corps humain. Elle a etudie la transformation categorique de larve et de pupe observe a la nutrition avec la Corcyra cephalonica (St.). Ces trois moeromolecules dans le corps humain demontrent progressivement une tendance decroissante de la larvae a la pupe. Dans le corps gras, l'existence naturelle de carbohydrate et de protein est superieure dans la pupe que dans la larve. Tandis que, la transformation remarque apres administration de nutriment est imferieure dans la pupe que dans la larve, demontrant un resultat inverse. Une etude sur les faits observe dans le signification physiologique endiminuant le niveau de nutriuent par application de pyrethrum (un insecticide botanique) est egalement elaboree.

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Chemical Aspects of Growth and Development in Insects

Cited by 5 publications

References 222 publications

Differential expression of mitochondrial genes between queens and workers during caste determination in the honeybeeApis mellifera

Differential expression of mitochondrial genes between queens and workers during caste determination in the honeybeeApis mellifera

Postembryonic Development

Studies on carbohydrate, protein and lipid levels in normal and stress conditions in fat body and integument as compared to whole body during development of rice moth, Corcyra cephalonica (St.)

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