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Full-Text Articles in Life Sciences
Aquaporin Expression And Cholesterol Content In Eel Swimbladder Tissue, Victoria Drechsel, Gabriel Schneebauer, Birgit Fiechtner, Christopher P. Cutler, Bernd Pelster
Aquaporin Expression And Cholesterol Content In Eel Swimbladder Tissue, Victoria Drechsel, Gabriel Schneebauer, Birgit Fiechtner, Christopher P. Cutler, Bernd Pelster
Department of Biology Faculty Publications
Leakiness of the swimbladder wall of teleost fishes must be prevented to avoid diffusional loss of gases out of the swimbladder. Guanine incrustation as well as high concentrations of cholesterol in swimbladder membranes in midwater and deep-sea fish has been connected to a reduced gas permeability of the swimbladder wall. On the contrary, the swimbladder is filled by diffusion of gases, mainly oxygen and CO2, from the blood and the gas gland cells into the swimbladder lumen. In swimbladder tissue of the zebrafish and the Japanese eel, aquaporin mRNA has been detected, and the aquaporin protein has been considered important …
Responses Of Stomatal Features And Photosynthesis To Porewater N Enrichment And Elevated Atmospheric Co2 In Phragmites Australis, The Common Reed, Julian R. Garrison, Joshua S. Caplan, Vladimir Douhovnikoff, Thomas J. Mozdzer, Barry A. Logan
Responses Of Stomatal Features And Photosynthesis To Porewater N Enrichment And Elevated Atmospheric Co2 In Phragmites Australis, The Common Reed, Julian R. Garrison, Joshua S. Caplan, Vladimir Douhovnikoff, Thomas J. Mozdzer, Barry A. Logan
Biology Faculty Research and Scholarship
PREMISE Biological invasions increasingly threaten native biodiversity and ecosystem services. One notable example is the common reed, Phragmites australis, which aggressively invades North American salt marshes. Elevated atmospheric CO2 and nitrogen pollution enhance its growth and facilitate invasion because P. australis responds more strongly to these enrichments than do native species. We investigated how modifications to stomatal features contribute to strong photosynthetic responses to CO2 and nitrogen enrichment in P. australis by evaluating stomatal shifts under experimental conditions and relating them to maximal stomatal conductance (g(wmax)) and photosynthetic rates.
METHODS Plants were grown in situ in open-top chambers under ambient …