David W. Stanley‐Samuelson

University of Nebraska–Lincoln

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Ralph W. Howard

University of Memphis

Werner Loher

University of California, Berkeley

Venkat K. Pedibhotla

Iowa State University

Gary J. Blomquist

University of Nevada, Reno

Leon G. Higley

University of Nebraska–Lincoln

Russell A. Jurenka

Iowa State University

Clyde L. Ogg

Nebraska Department of Education

Jon S. Miller

Northern Illinois University

R. H. Dadd

University of California, Berkeley

David H. Petzel

Creighton University

Cooperative Institutions

University of Nebraska–Lincoln

University of California, Berkeley

United States Department of Agriculture

Agricultural Research Service

Iowa State University

Creighton University

University of Nevada, Reno

University of Illinois Urbana-Champaign

University of Florida

The University of Texas at Austin

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What Is the Role of Scholarship in Scientific Writing?

American Entomologist (1995)

David W. Stanley‐Samuelson Leon G. Higley

What Is the Role of Scholarship in Scientific Writing? David W. Stanley-Samuelson, David W. Stanley-Samuelson Search for other works by this author on: Oxford Academic Google Scholar Leon G. Higley Leon G. Higley Search for other works by this author on: Oxford Academic Google Scholar American Entomologist, Volume 41, Issue 1, Spring 1995, Pages 18–20, https://doi.org/10.1093/ae/41.1.18 Published: 01 January 1995

10.1093/ae/41.1.18

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Fatty acid composition of fat body and malpighian tubules of the tenebrionid beetle, Zophobas atratus: Significance in eicosanoid-mediated physiology

Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology (1996)

Ralph W. Howard David W. Stanley‐Samuelson

Malpighian tubule system

10.1016/s0305-0491(96)00161-7

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Prostaglandins: Their role in egg-laying of the cricket Teleogryllus commodus

Proceedings of the National Academy of Sciences (1981)

Werner Loher Iraj Ganjian Isao Kubo David W. Stanley‐Samuelson Stephen S. Tobe

Mating of the Teleogryllus commodus female causes increased oviposition mediated by PGE(2), which is synthesized in the female's spermatheca from the precursor, arachidonic acid, in the presence of a PG-synthesizing complex. The latter, together with sperm, is transferred from the male to the female via a spermatophore. Only nanogram quantities of PGE(2) injected into oviduct are necessary to simulate mating-induced egg release.

Laying

10.1073/pnas.78.12.7835

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Citations (149)

What Do You Mean, Have I Read My Own Paper?

American Entomologist (1993)

Leon G. Higley David W. Stanley‐Samuelson

10.1093/ae/39.2.74

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Seasonal changes in lipid composition during the reproductive cycle of the red-chinned lizard, Sceloporus undulatus erythrocheilus

Comparative Biochemistry and Physiology Part B Comparative Biochemistry (1992)

Royce Ε. Ballinger Lisa Holy John W. Rowe Fernando Karst Clyde L. Ogg

Myristic acid

Reproductive cycle

10.1016/0305-0491(92)90365-x

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Inhibition of eicosanoid biosynthesis modulates basal fluid secretion in the Malpighian tubules of the yellow fever mosquito (Aedes aegypti)

Journal of Insect Physiology (1992)

David H. Petzel David W. Stanley‐Samuelson

Malpighian tubule system

Secretagogue

Epoxygenase

10.1016/0022-1910(92)90016-7

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Citations (62)

When Is Writing Not Writing? The Ethics of Recycling

American Entomologist (1996)

Leon G. Higley David W. Stanley‐Samuelson

10.1093/ae/42.4.204

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Effects of dietary polyunsaturated fatty acids on tissue monounsaturate and saturate proportions in two insect species

Comparative Biochemistry and Physiology Part B Comparative Biochemistry (1985)

David W. Stanley‐Samuelson E.W. Rapport R. H. Dadd

10.1016/0305-0491(85)90399-2

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Phospholipase A₂ activity in the fat body of the tobacco hornworm Manduca sexta

Archives of Insect Biochemistry and Physiology (1993)

John M. Uscian David W. Stanley‐Samuelson

Abstract We report on phospholipase A 2 (PLA 2 ) activity in homogenates prepared from fat bodies of the tobacco hornworm Manduca sexta. PLA 2 activity is responsible for hydrolyzing fatty acids from the sn‐2 position of phospholipids. The rate of hydrolysis increased with increasing homogenate protein concentration up to ∼︁ 320 μg protein/ml reaction volume. Higher protein concentrations did not appreciably increase the rate of PLA 2 activity. As seen in some, but not all PLA 2 s from mammalian sources, hydrolyzing activity increased linearly with time. The fat body activity was sensitive to pH (optimal activity at pH 8–9) and temperature (optimal activity at ∼︁40°C). The activity was associated with fat body rather than hemolymph, because no activity was detected in cell‐free serum. The fat body PLA 2 activity differs from the majority of PLA 2 s with respect to calcium requirements. Whereas most PLA 2 s are calcium‐independent. A few others are known to require submicromolar calcium concentrations. The fat body activity appears to be calcium independent. These data show that a PLA 2 activity that can hydrolyze arachidonic acid from the sn‐2 position of phospholipids is associated with the tobacco hornworm fat body. The biological significance of this activity relates to biosynthesis of eicosanoids. Pharmacological inhibition of PLA 2 impairs the ability of this insect to respond to bacterial infections. Since the impairment can be reversed by treatment with exogenous arachidonic acid, the PLA 2 activity may be an important step in eicosanoid biosynthesis. © 1993 Wiley‐Liss, Inc.

Hemolymph

Phospholipase A

10.1002/arch.940240403

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Comparative eicosanoid physiology in invertebrate animals

AJP Regulatory Integrative and Comparative Physiology (1991)

David W. Stanley‐Samuelson

A comparative survey of eicosanoid physiology in invertebrate animals is presented. Topics include host skin penetration behavior in blood flukes, oocyte maturation in starfishes, prevention of polyspermic fertilizations in sea urchins, ion regulation in bivalves, egg production in snails, egg release in scallops, neurobiology of Aplysia, hatching in barnacles, and release of egg-laying behavior in some insects. Some eicosanoid actions, such as ion regulation, may be common to most vertebrate and invertebrate animals, whereas other actions, such as mediation of whole organism behavior, are not shared. Comparative physiology is revealing that the biological significance of eicosanoids extends far beyond vertebrate animals.

Comparative physiology

Aplysia

Marine invertebrates

10.1152/ajpregu.1991.260.5.r849

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Citations (55)