Výsledky vyhledávání - "Louis L. Pech"

Isolation and Identification of a Plasmatocyte-spreading Peptide from the Hemolymph of the Lepidopteran InsectPseudoplusia includens

Autor: Kevin D. Clark, Louis L. Pech, Michael R. Strand

Publikováno v: Journal of Biological Chemistry. 272:23440-23447

Insect blood cells (hemocytes) play an essential role in defense against parasites and other pathogenic organisms that infect insects. A key class of hemocytes involved in insect cellular immunity is plasmatocytes. Here we describe the isolation and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83f3569618ba9c707e85e162e8da369a
https://doi.org/10.1074/jbc.272.37.23440

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Effects of basement membranes on the behavior of hemocytes from Pseudoplusia includens (Lepidoptera; Noctuidae): Development of an in vitro encapsulation assay

Autor: Dominique Trudeau, Michael R. Strand, Louis L. Pech

Publikováno v: Journal of Insect Physiology. 41:801-807

The effects of culturing hemocytes from Pseudoplusia includens on the basement membrane preparation, Matrigel, were examined. Hemocytes in mixed populations did not spread on tissue culture plates coated with Matrigel, whereas cells readily spread on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1af56bc2d23a56d0f031efdefdde608
https://doi.org/10.1016/0022-1910(95)00023-n

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Encapsulation of foreign targets by hemocytes of the moth Pseudoplusia includens (Lepidoptera: Noctuidae) involves an RGD-dependent cell adhesion mechanism

Autor: Louis L. Pech, Michael R. Strand

Publikováno v: Journal of Insect Physiology. 41:481-488

We tested the hypothesis that an insect immune response, encapsulation, involves an RGD-dependent cell adhesion mechanism by examining the effects of the tetrapeptide RGDS on hemocyte spreading and encapsulation. Soluble RGDS at concentrations of 0.5

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26ae4b912b463383e49fb48b5fd19c70
https://doi.org/10.1016/0022-1910(94)00136-5

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Regulation of ciliary motility in Paramecium by cAMP and cGMP

Autor: Louis L. Pech

Publikováno v: Comparative Biochemistry and Physiology Part A: Physiology. 111:31-37

Paramecium tetraurelia is a useful model system for the study of signal transduction mechanisms that couple changes in membrane potential to changes in ciliary motility, and cAMP and cGMP have been implicated as second messengers in this system. Chan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb919b5b000ccb230fbb0870246399bd
https://doi.org/10.1016/0300-9629(95)98516-j

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Separation and behavior in vitro of hemocytes from the moth, Pseudoplusia includens

Autor: Michael R. Strand, Dominique Trudeau, Louis L. Pech

Publikováno v: Cell and Tissue Research. 277:159-167

Hemocytes collected from larvae of Pseudoplusia includens (Lepidoptera: Noctuidae) were separated by centrifugation on Percoll cushions. The procedure resulted in 95% purity of plasmatocytes and greater than 99% purity of granular and spherule cells.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2437e71fa300ee03e4ef957945efa75
https://doi.org/10.1007/bf00303092

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Purification and characterization of calmodulin (lysine 115) N-methyltransferase from Paramecium tetraurelia

Autor: David L. Nelson, Louis L. Pech

Publikováno v: Biochimica et Biophysica Acta (BBA) - General Subjects. 1199:183-194

Calmodulin (lysine 115) N-methyltransferase was purified from the cytosolic fraction of Paramecium tetraurelia by sequential dialysis, cellulose phosphate chromatography, Reactive Red 120 agarose chromatography, and calmodulin-Sepharose affinity chro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82a5e10363bf9a3f9676ca597b4f613f
https://doi.org/10.1016/0304-4165(94)90114-7

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High-resolution scanning electron microscopy of frozen-hydrated cells

Autor: Ya Chen, Paul Walther, James B. Pawley, Louis L. Pech

Publikováno v: Journal of Microscopy. 168:169-180

SUMMARY Cryo-fixed yeast Paramecia and sea urchin embryos were investigated with an in-lens type field-emission SEM using a cold stage. The goal was to further develop and investigate the processing of frozen samples for the low-temperature scanning

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0af8a3e8703819156dd881f70d5e1a4
https://doi.org/10.1111/j.1365-2818.1992.tb03259.x

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First State Record forGalerita lecontei leconteiDejean (Coleoptera: Carabidae) from Utah, USA

Autor: Louis L. Pech, Timothy B. Graham

Publikováno v: The Coleopterists Bulletin. 67:56-57

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea3e7222a13f05f262a193ba216d2001
https://doi.org/10.1649/072.067.0114

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Dirhinus texanus (Hymenoptera: Chalcididae) from Utah

Autor: Tim B. Graham, Louis L. Pech, Michael W. Gates

Publikováno v: The Southwestern Naturalist. 56:275-276

We collected a Dirhinus texanus (Hymenoptera: Chalcididae) in Salt Creek Canyon, Canyonlands National Park, San Juan County, Utah. This is the first record for D. texanus in Utah.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c6e7b7adb90481e10ed48e0980db082
https://doi.org/10.1894/n08-jc-42.1

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