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  1. Effects of the avermectin, MK-243, on ovary development and salivary gland degeneration in the ixodid tick, Amblyomma hebraeum

    by Friesen, K. J.; Suri, R.; Kaufman, W. R.

    Note: figures and tables appear at the end of the article.

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  2. Endoconidiogenesis in Endoconidioma populi and Phaeotheca fissurella

    by Tsuneda, A.; Tsuneda, I.; Currah, R.S.

    Details of the development of endoconidia were basically the same in Endoconidioma populi and Phaeotheca fissurella. In both...

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  3. Endogenous hypothalamic somatostatins differentially regulate growth hormone secretion from goldfish pituitary somatotropes in vitro

    by Yunker, W.Y.; Smith, S.; Graves, C.; Davis, P.J.; Unniappan, S.; Rivier, J.E.; Peter, R.E.; Chang, J.P.

    Using Southern blot analysis of RT-PCR products, mRNA for three different somatostatin (SS) precursors (PSS-I, -II, and -III),...

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  4. Endogenous melanocortin antagonist in fish: Structure, brain mapping and regulation by fasting of the goldfish agouti-related protein gene

    by Cerdá-Reverter, J.M.; Peter, R.E.

    Agouti-related protein (AGRP) is a naturally occurring antagonist of melanocortin. In mammals, central AGRP expression is...

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  5. Endomembrane system of aspen roots plays a key role in defense against a common fungal endophyte Cryptosporiopsis radicicola

    by Tsuneda, A.; Wang, W.; Tsuneda, I.; Currah, R.S.

    The host-endophyte interaction between roots of aspen (Populus tremuloides) andCryptosporiopsis radicicola was examined primarily...

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  6. The endosymbiont Wolbachia pipientis induces the expression of host antioxidant proteins in an Aedes albopictus cell line

    by Brennan, L.J.; Keddie, B.A.; Braig, H.R.; Harris, H.L.

    Wolbachia are obligate intracellular bacteria which commonly infect arthropods. They are maternally inherited and capable...

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  7. Enhanced low oxygen survival in Arabidopsis through increased metabolic flux in the fermentative pathway

    by Ismond, K. P.; DePauw, M.; Dennis, E. S.; Dolferus, R.; Good, A. G.

    We manipulated the enzyme activity levels of the alcohol fermentation pathway, pyruvate decarboxylase (PDC), and alcohol...

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  8. Enhancing productive capacity in the Canadian Arctic: Assessing the effectiveness of instream habitat structures in habitat compensation

    by Jones, N.E.; Tonn, W.M.

    We examined the effectiveness of physical habitat structures (ramps, V-weirs, vanes, and groins) at increasing the productive...

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  10. Environmental coupling of selection and heritability limits evolution

    by Wilson, A.J.; Pemberton, J.M.; Pilkington, J.G.; Coltman, D.W.; Mifsud, D.V.; Clutton-Brock, T.H.; Kruuk, L.E.B.

    There has recently been great interest in applying theoretical quantitative genetic models to empirical studies of evolution...

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  11. An Eocene Tar Spot on a Fossil Palm and Its Fungal Hyperparasite

    by Currah, R.S.; Stockey, R.A.; LePage, B.A.

    Two ascomycetes from the middle Eocene (48.7 million yr b.p.) Princeton chert are described. Palaeoserenomyces allenbyensis...

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  12. Epulorhiza inquilina sp. nov. from Platanthera (Orchidaceae) and a key to Epulorhiza species

    by Currah, R. S.; Zettler, L. W.; McInnis, T. M.

    Abstract: Epulorhiza inquilina sp. nov. is described from the mycorrhizas of mature plants of Platanthera clavellata, P....

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  13. Escherichia coli K-12: A cooperatively developed annotation snapshot - 2005

    by Riley, M.; Abe, T.; Arnaud, M.B.; Berlyn, M.K.; Blattner, F.R.; Chaudhuri, R.R.; Glasner, J.D.; Horiuchi, T.; Keseler, I.M.; Kosuge, T.; Nori, H.; Pernas, N.T.; Plunkett, G.; Rudd, K.E.; Serres, M.H.; Thomas, G.H.; Thomson, N.R.; Wishart, D.S.; Wanner, B.L.

    The goal of this group project has been to coordinate and bring up-to-date information on all genes of Escherichia coli K-12....

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  14. Establishing a fossil record for the perianthless Piperales: Saururus tuckerae sp. nov. (Saururaceae) from the Middle Eocene Princeton Chert

    by Smith, S.Y.; Stockey, R.A.

    Investigations of small permineralized flowers from the Middle Eocene Princeton Chert, British Columbia, Canada have revealed...

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  15. Estimating Population Spread: What Can We Forecast and How Well?

    by Clark, J. S.; Lewis, M. A.; McLachlan, J. S.; HilleRisLambers, J.

    Recent literature on plant population spread advocates quantification of long-distance dispersal (LDD). These estimates could...

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  16. Estimation of speciated and total mercury dry deposition at monitoring locations in Eastern and Central North America

    by Zhang, L.; Blanchard, P.; Gay, D.A.; Prestbo, E.M.; Risch, M.R.; Johnson, D.; Narayan, J.; Zsolway, R.; Holsen, T.M.; Miller, E.K.; Castro, M.S.; Graydon, J.A.; St. Louis, V.L.; Dalziel, J.

    Dry deposition of speciated mercury, i.e., gaseous oxidized mercury (GOM), particulate bound mercury (PBM), and gaseous elemental...

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  17. Evaluating the Relationship between Competition and Productivity within a Native Grassland

    by Bennett, J. A.; Cahill, J. F.

    Ideas about how plant competition varies with productivity are rooted in classic theories that predict either increasing...

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  18. Evidence for selective caching by arctic ground squirrels in alpine meadows in the Yukon

    by Gillis, E.A.; Morrison, S.F.; Zazula, G.; Hik, D.S.

    Male arctic ground squirrels (Spermophilus parryii) rely on food they cached the previous year for the energy they need to...

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  19. Evidence for sympodial vascular architecture in a filicalean fern rhizome: Dickwhitea allenbyensis gen. et sp. nov. (Athyriaceae).

    by Karafit, S.J.; Rothwell, G.W.; Stockey, R.A.; Nishida, H.

    A new genus and species of anatomically preserved fossil filicalean ferns Dickwhitea allenbyensis gen. et sp. nov. is described...

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  20. Evidence of recent treeline dynamics in southwest Yukon from aerial photographs

    by Danby, R.K.; Hik, D.S.

    Small-scale vertical aerial photographs taken in 1947 and 1948 covering 200 km2 of the Kluane Ranges, southwest Yukon, were...

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