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|
| Name: |
Rolf Ingermann |
| Department: |
Biological Sciences |
| Credentials: |
1980~Ph.D. University of Oregon |
| Phone: |
208-885-7749 |
| Fax: |
208-885-7905 |
| Mailing Address: |
Biological Sciences
University of Idaho
Moscow, ID 83844-3051 |
| E-mail: |
rolfi@uidaho.edu |
|
Research Interests
Reproductive Physiology
Research Summary
I am a comparative physiologist
particularly interested in fish and their gametes. Recently, we
have focused our research on evaluating the impact of potential
physiological and/or environmental stressors on sperm metabolism
and motility. For example, in the steelhead trout, we have
noted that reduced pH and elevated CO2 interfere with sperm
motility in vitro. Consistent with this finding is our
observation that exhaustive exercise in this fish, which results in
acidosis and hypercapnia, is also associated with a reduction in
sperm motility and may impact fertility. Using a newly
developed computer analysis system with which we can now
individually track 400 active sperm simultaneously, we have
collected data demonstrating that the motile sperm from several
species of fishes can be statistically divided into multiple
discrete subpopulations. The physiological significance of
this unique finding is not clear and we are pursuing this question
with fertility studies.
Research Publications
2005-2009
Ingermann, R.L.,
M.K. Kanuga, and J.G. Wilson-Leedy, Effect of blood plasma on
motility of steelhead sperm. Aquacult Res In Press
Wilson-Leedy, J.G., M.K. Kanuga,
and R.L. Ingermann, Influence of osmolality and
ions on the activation and characteristics of zebrafish sperm
motility. Theriogenology, 2009. 71(7): p. 1054-62.
Zuccarelli, MD, Kusakabe, M,
Nakamura, I, Prentice, EF, Young, G, and Ingermann,
RL. (2008) Acute stress response of endangered Kootenai
River white sturgeon (Acipenser transmontanus) reflected in
peritoneal fluid and blood plasma. J. Fish Biol.
72: p. 1831-40.
Ingermann, RL.
(2008) Energy metabolism and respiration in fish spermatozoa. In:
Fish Spermatology. Alavi, SMH, Cosson, J, Coward, K and Rafiee, G,
eds., Alpha Sci. Intl. Ltd, Oxford, UK, Ch 7, pp. 241-66.
Ingermann, R.L.,
M. Holcomb, M.D. Zuccarelli, M.K. Kanuga, and J.G. Cloud, (2008)
Initiation of motility by steelhead (Oncorhynchus mykiss) sperm:
Membrane ion exchangers and pH sensitivity. Comp Biochem Physiol A
Mol Integr Physiol,. 151: p. 651-6.
Wilson-Leedy, J.G. and
R.L. Ingermann, Development of a novel CASA system
based on open source software for characterization of zebrafish
sperm motility parameters. Theriogenology, 2007. 67(3): p.
661-72.
Zuccarelli, M.D. and R.L.
Ingermann, Calcium-induced quiescence of sperm motility in
the bluegill (Lepomis macrochirus). J Exp Zool Part A Ecol Genet
Physiol, 2007. 307(10): p. 590-9.
Zuccarelli, MD, Jensen, N, and
Ingermann, RL. (2007) Inhibitory effect of osmotic
concentration, potassium and pH on motility of the sperm of the
North American burbot (Lota lota maculosa). J. Fish Biol. 70: p.
178-89.
Zuccarelli, M.D. and R.L.
Ingermann, (2007) Exhaustive exercise, animal stress, and
environmental hypercapnia on motility of sperm of steelhead trout
(Oncorhynchus mykiss). Comp Biochem Physiol A Mol Integr Physiol,
147(1): p. 247-53.
Ingermann, R.L., (2006) Do sperm contribute to the
buffering capacity of steelhead trout (Oncorhynchus mykiss) semen?
Comp Biochem Physiol A Mol Integr Physiol, 144(4): p.
410-5.
Woolsey, J, Holcomb, M, Cloud, JG,
and Ingermann, RL. (2006) Sperm motility in
steelhead Oncorhynchus mykiss (Walbaum): influence of the
composition of the incubation and activation media. Aquacult. Res.
37: p. 215-23.
