Search Results - "Spring, J H"

Hormonal regulation in insects: facts, gaps, and future directions by Gäde, G, Hoffmann, K H, Spring, J H

“…There are two main classes of hormones in insects: 1) the true hormones produced by epithelial glands and belonging to the ecdysteroids or juvenile hormones…”
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Modes of control of insect Malpighian tubules: synergism, antagonism, cooperation and autonomous regulation by O'Donnell, M.J, Spring, J.H

“…Rates of fluid and ion secretion by insect Malpighian tubules are controlled by peptides, including CRF-related peptides and kinins, and in some species by…”
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Tests of potential adipokinetic hormone precursor related peptide (APRP) functions: Lack of responses by Hatle, John D., Spring, Jeffrey H.

“…The adipokinetic hormone (AKH) precursor related peptides (APRPs) are end products of the synthesis of the well‐conserved AKHs. The large amount of metabolic…”
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Membrane dynamics in the malpighian tubules of the house cricket, acheta domesticus by Hazelton, S R, Townsend, V R, Felgenhauer, B E, Spring, J H

“…In Acheta domesticus, the Malpighian tubules (Mt) are composed of three morphologically distinct regions (proximal, mid and distal), each consisting of a…”
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New technique for examining invertebrate membranes using high resolution scanning electron microscopy by Townsend Jr, V.R., Hazelton, S. R., Felgenhauer, B. E., Spring, J.H.

“…Much has been learned from recent advances in research methods (TEM of think serial sections and computer reconstruction, freeze-fracture, freeze-etching)…”
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Excretion in the house cricket: stimulation of rectal reabsorption by homogenates of the corpus cardiacum by SPRING, J. H, ALBARWANI, A

“…1. We describe an in vitro perfused preparation of Acheta domesticus rectum which allows direct comparison of Malpighian tubule secretion and rectal absorption…”
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Adipokinetic Hormones in Fifth Instar Romalea guttata (Orthoptera: Acrididae): Activation of Glycogen Phosphorylase Does Not Produce Hypertrehalosemia by Hatle, John D., Spring, Jeffrey H.

“…Romalea guttata Houttuyn (= R. microptera Beavois) is flightless, lethargic, aposematic, and chemically defended. R. guttata stores large quantities of two…”
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Excretion in the house cricket (Acheta domesticus): stimulation of diuresis by tissue homogenates by SPRING, J. H, HAZELTON, S. R

“…A new method is described for maintaining cricket Malpighian tubules in vitro. Warmed, oxygenated saline is circulated rapidly past the tubules, while the…”
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A novel target for antidiuretic hormone in insects by Spring, J.H, Morgan, A.M, Hazelton, S.R

“…Diuresis in insects is controlled by two antagonistic hormone groups: diuretic hormones, which promote water loss, and antidiuretic hormones, which inhibit it…”
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Diuretic and antidiuretic factors which act on the malpighian tubules of the house cricket, Acheta domesticus by Spring, J H, Clark, T M

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Morphology and ultrastructure of the malpighian tubules of the Chilean common tarantula (Araneae: Theraphosidae) by Hazelton, S. Renee, Townsend Jr, Victor R., Richter, Courtney, Ritter, Marnie E., Felgenhauer, Bruce E., Spring, Jeffrey H.

“…Relatively little is known about the morphology and ultrastructure of the Malpighian tubules of spiders (Arachnida: Araneae). Our study represents the first…”
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Differential effects of neuropeptides on the distal and mid-tubules of the house cricket by Spring, J H, Kim, I

“…In the Malpighian tubules of Acheta, the distal and middle segments are functionally and morphologically quite distinct (Spring and Kim, Mol Comp Physiol…”
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Improved fixation and contrast of insect Malpighian tubules using osmium tetroxide-potassium ferricyanide by Felgenhauer, B E, Spring, J H, Bordelon, C M

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Psychologists and the war: the meaning of intelligene in the alpha and beta tests by Spring, J H

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Ultrastructural changes in the Malpighian tubules of the house cricket, Acheta domesticus, at the onset of diuresis: A time study by Hazelton, S. Renee, Felgenhauer, Bruce E., Spring, Jeffrey H.

“…The Malpighian tubules (Mt) of insects are responsible for maintaining osmotic homeostasis and eliminating waste from the hemolymph. When stimulated by…”
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Fluid-phase endocytosis does not contribute to rapid fluid secretion in the malpighian tubules of the house cricket, Acheta domesticus by Hazelton, S. Renee, Spring, Jeffrey H., Felgenhauer, Bruce E.

“…When the Malpighian tubules (Mt) of the house cricket (Acheta domesticus) are treated with dibutyryl adenosine 3′, 5′‐cyclic monophosphate (db‐cAMP; 1 mM),…”
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Ion and water transport in the orthopteran alimentary canal: a comparison of Mantidae and Acrididae by Hatle, J D, Spring, J H, Dow, JA

“…We measured hemolymph Na+ and K+ concentrations, gut Na+ and K+ concentrations, transepithelial electrical potentials (TEPs) and fluxes of Na+, K+ and water…”
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Correlations between secretion rate and ultrastructure in Acheta Malpighian tubules responding to secretagogues by Spring, JH, Felgenhauer, BE, Hazelton, SR

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The effects of cAMP stimulation on secretion rate and ultrastructure of the Malpighian tubules of Acheta domesticus by Hazelton, SR, Felgenhauer, BE, Spring, JH

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Studies on Locust Rectum by Spring, J. H., Phillips, J. E.

“…The unidirectional fluxes of 36Cl− and 22Na+ across short-circuited locust recta bathed in a simple NaCl saline were followed with time. Unidirectional fluxes…”
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