spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.



Fig. 4. Trimethylamine N-oxide (TMAO) as a possible pressure counteractant in deep-sea animals (see also Fig. 1 for other deep-sea osmolytes). (A) Contents of TMAO (and urea in rajids, as shown) in muscles as a function of depth in shrimp, rajids (skates) and teleost fishes: gadid (cod) and related macrourids (grenadiers), plus scorpaenids (rockfish) (data from Kelly and Yancey, 1999; Yancey et al., 2004). (B) Effect of 250 mmol l–1 osmolytes on NADH Km of A4-lactate dehydrogenase (LDH) from deep-sea grenadier (Coryphaenoides armatus). Measurements were made at atmospheric pressure (0.1 MPa) and 250 atmos (25 MPa), showing that TMAO counteracts pressure better than other common solutes. *Significant increase compared to 0.1 MPa water control; {dagger}significant decrease compared to 25 MPa water control (modified from Yancey et al., 2004).





Right arrow Return to article