Download e-book for kindle: Advances in Insect Physiology, Vol. 21 by P.D. Evans, V.B. Wigglesworth (Eds.)

By P.D. Evans, V.B. Wigglesworth (Eds.)

ISBN-10: 0120242214

ISBN-13: 9780120242214

This newest quantity during this sequence comprises articles on numerous insect physiological issues from the apprehensive procedure to the cuticle and circulatory process.

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Additional resources for Advances in Insect Physiology, Vol. 21

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Booker, R. and Truman J. W. (l987a). Postembryonic neurogenesis in the CNS of the tobacco hornworm, Manduca sexta. I. Neuroblast arrays and the fate of their progeny during metamorphosis. J. comp. Neurol. 255,548-559. Booker, R. and Truman J. W. (l987b). Postembryonic neurogenesis in the CNS of the tobacco hornworm, Manduca sexta. 11. Hormonal control of imaginal nest cell degeneration and differentiation during metamorphosis. J. Neurosci. 7,410741 14. Breidbach, 0. ( I 987). The fate of persisting thoracic neurons during metamorphosis of the meal beetle Tenebrio molitor (Insecta: Coleoptera).

These structural changes in the insect soma parallel equivalent degenerative changes which occur in axotomized vertebrate neurons, where there is both vacuolation and the appearance of membrane-bound vesicles (cf. , 1979). The distal segments of transected axons in the central nervous systems of insects show variable rates of degeneration. Unligatured cockroach giant axons, for example, degenerate relatively rapidly, within 3-8 days (Hess, 1958, 1960; Farley and Milburn, 1969) when separated from their cell bodies, whereas apparent distal segments in the grasshopper Laplatacris disper (Melamed and Trujillo-Cenbz, 1962) and the locust, Schistocerca gregariu (Rowell and Dorey, 1967; Boulton, 1969; Boulton and Rowell, 1969) have been described as showing only minimal degenerative changes after 10 days.

S. (196917). Postembryonic brain development in the monarch butterfly, Danus plexippus plexippus, L. 11. The optic lobes. Wilhelm Roux Arch. Dev. Biol. 163, 197-220. Olberg, R. M. (1986). Metamorphosis of identified visual interneurons which steer flight in the dragonfly. Neurosci. Abstr. 12,927. Palka, J. (1986). Neurogenesis and axonal pathfinding in invertebrates. Trends Neurosci. 9,482-485. Pipa, R. L. (1967). Insect neurometamorphosis-111. ), may be accomplished by hormonal potential of neuroglial motility.

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Advances in Insect Physiology, Vol. 21 by P.D. Evans, V.B. Wigglesworth (Eds.)


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