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


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Atkinson, H. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Atkinson, H. J.

Journal of Experimental Biology, Vol 62, Issue 1 1-9, Copyright © 1975 by Company of Biologists

JOURNAL ARTICLES

The functional significance of the haemoglobin in a marine nematode, Enoplus brevis (Bastian)

HJ Atkinson

An animal chamber and a simple microspectrophotometer for investigating the in vivo oxygenation of the haemoglobin of E. brevis are described. The in vivo absorption peaks of this haemoglobin occur at similar wavelengths to those of other nematodes. Mean values, given with their corresponding standard errors, occur at 577.6 plus or minus 0.6 nm, 543.6 plus or minus 0.5 nm and 421.7 plus or minus 1.9 nm for oxyhaemoglobin, and 555.2 plus or minus 0.9 nm and 432.2 plus or minus 1.3 nm for the deoxygenated pigment. The percentage of oxyhaemoglobin in the pharynx of E. brevis decreased at external oxygen tensions of less than 20 Torr, and the pigment was completely deoxygenated at 5 Torr. Stimulation of individuals in aerated sea water for 1-2 min caused a partial deoxygenation of the haemoglobin; the pigment reloaded soon after this period of increased activity had ended. The functional significance of the haemoglobin of E. brevis is disucssed.


This article has been cited by other articles:


Home page
 IOVSHome page
J. Ostojic, D. S. Sakaguchi, Y. de Lathouder, M. S. Hargrove, J. T. Trent III, Y. H. Kwon, R. H. Kardon, M. H. Kuehn, D. M. Betts, and S. Grozdanic
Neuroglobin and cytoglobin: oxygen-binding proteins in retinal neurons.
Invest. Ophthalmol. Vis. Sci., March 1, 2006; 47(3): 1016 - 1023.
[Abstract] [Full Text] [PDF]

Home page
 Physiol. Rev.Home page
R. E. Weber and S. N. Vinogradov
Nonvertebrate Hemoglobins: Functions and Molecular Adaptations
Physiol Rev, April 1, 2001; 81(2): 569 - 628.
[Abstract] [Full Text] [PDF]

Home page
 J. Biol. Chem.Home page
T. L. Vandergon, C. K. Riggs, T. A. Gorr, J. M. Colacino, and A. F. Riggs
The Mini-hemoglobins in Neural and Body Wall Tissue of the Nemertean Worm, Cerebratulus lacteus
J. Biol. Chem., July 3, 1998; 273(27): 16998 - 17011.
[Abstract] [Full Text] [PDF]


© The Company of Biologists Ltd 1975