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2004

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

Details of the development of endoconidia were basically the same in Endoconidioma populi and Phaeotheca fissurella. In both species, endoconidiogenesis involved (i) subdivision of conidiogenous mother cells by septation to form two to several daughter cells; (ii) accumulation of an electrondense...

2003

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

Using Southern blot analysis of RT-PCR products, mRNA for three different somatostatin (SS) precursors (PSS-I, -II, and -III), which encode for SS14, goldfish brain (gb)SS28, and [Pro2]SS14, respectively, were detected in goldfish hypothalamus. PSS-I and -II mRNA, but not PSS-III mRNA, were also...

2003

Cerdá-Reverter, J.M., Peter, R.E.

Agouti-related protein (AGRP) is a naturally occurring antagonist of melanocortin. In mammals, central AGRP expression is restricted to the arcuate nucleus in which it plays a key role in the control of energy balance by antagonizing melanocortin effects at melanocortin 4 receptors. In goldfish,...

2009

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

The host-endophyte interaction between roots of aspen (Populus tremuloides) andCryptosporiopsis radicicola was examined primarily by transmission electron microscopy. Hyphae growing on the exterior of the inoculated roots had a thick, electron-dense, adhesive sheath. At hyphal contact and...

2007

Johnson, S.J., Carroll, R.T., Vidmar, J.J., Stroeher,V., Taylor, G.T., Good, A.G., DePauw, M., Lu, Z., Savidov, N.

Nitrogen (N) is the most important factor limiting crop productivity worldwide. The ability of plants to acquire N from applied fertilizers is one of the critical steps limiting the efficient use of nitrogen. To improve N use efficiency, genetically modified plants that overexpress alanine...

2003

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

We manipulated the enzyme activity levels of the alcohol fermentation pathway, pyruvate decarboxylase (PDC), and alcohol dehydrogenase (ADH) in Arabidopsis using sense and antisense overexpression of the corresponding genes (PDC1, PDC2, and ADH1). Transgenic plants were analyzed for levels of...

2004

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

We examined the effectiveness of physical habitat structures (ramps, V-weirs, vanes, and groins) at increasing the productive capacity of a newly created 3.4-km artificial stream in the Barrenlands region of the Northwest Territories, Canada. We quantified changes in fish density and growth in...

2006

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

There has recently been great interest in applying theoretical quantitative genetic models to empirical studies of evolution in wild populations. However, while classical models assume environmental constancy, most natural populations exist in variable environments. Here, we applied a novel...

2017-11-08

Sally Leys

ABSTRACT Background: The Wnt signaling pathway is uniquely metazoan and used in many processes during development, including the formation of polarity and body axes. In sponges, one of the earliest diverging animal groups, Wnt pathway genes have diverse expression patterns in different groups...

2018-01-01

University of Alberta, Department of Biological Sciences

This image is of Eppendorf centrifuge tubes. This laboratory equipment is used in Introduction to Cell Biology: Biology 107 and MolecuLar Genetics and Heredity: Biology 207. This image was created as part of the University of Alberta OER image database project in Biological Sciences. Identifier...