Salmon orientation

Wagner, A., Deryckere, F McMorrow, T and Gannon, F. (1994) Tail-to-Tail Orientation of the Atlantic Salmon Alpha-and Beta-Globin Genes, Journal of Molecular Evolution, 38,28-35. 

Figure 4.7-3 Polarized infrared spectra of salmon sperm DNA films. Top 98% RH. B form bottom 58% RH, A form. Electric field of incident radiation directed perpendicularly (full line) or parallelly (dotted line) to the preferential orientation of the sample.

Salmon ED. Merotelic kinetochore orientation is a major mech- 53. anism of aneuploidy in mitotic mammalian tissue cells. J. Cell. 

Cimini, D., Howell, B., Maddox, P., Khodjakov, A., Degrassi, F., Salmon, E. D. (2001). Merotelic kinetochore orientation is a major mechanism of aneuploidy in mitotic mammalian tissue cells. The Journal of Cell Biology, 153, 517—527. 

Hus JC, Salmon L, Bouvignies G, Lotze J, Blackledge M, Briischweiler R (2008) 16-Fold degeneracy of peptide plane orientations from residual dipolar couplings analytical treatment and implications for protein structure determination. J Am Chem Soc 130 15927-15937... 

Clearly, one of the most spectacular examples of chemosensory orientation is the homing migration of salmon. Because our recent work has indicated that migrating salmon may make use of a variety of orientation mechanisms, they will serve as our model animal for chemosensory orientation. 

Olfaction is, then, believed to be important in both the near-shore environs as well as the riverine stages of the homing migration of salmon. While the orientation mechanism within the river has been demonstrated to be released rheotropic responses dependent on the distribution of imprinted stimuli, near-shore movements are less clearly understood. Our recent experiments, however, indicate that responses to chemical stimuli and water currents may be important here as well. 

Fig. 17a, b. Polarized infrared spectra (absorbance a vs. wavenumber v) of a salmon sperm DNA in (a) the A form and (b) the B form. The incident electric field is oriented perpendicular (solid line) and parallel (dotted line) to the DNA axis [85T1]. 

---