Professor Song's interest is in the molecular mechanisms of interactions
between light and organisms. Specifically, his research is aimed at understanding
how certain genes in plant development and morphogenesis are regulated
by light and phytochrome. One study involves the interactions between phytochrome
and its putative receptors, including nuclear and chloroplast G-proteins.
The Chromophore structure and its Pr -> Pfr photoisomerization in
phytochrome.
Another study traces the ciliated protozoan
Stentor coeruleus responding
to a light trap. The ciliate swims forward in the dark by rotation propelled
by the clockwise stroke of the cilia. When the cell encounters light, the
beat direction of cilia abruptly reverses for about 200 msec, after which
the organism turns away from the light trap as the ciliary beating resumes
its clockwise direction. We determined the structure of the stentorin photoreceptor
chromophore (stentorin).
Stentorin
This research involves a study of the functional linkage between the
photoreceptor reactions and the subsequent sensory transduction that involves
a massive influx of calcium ions into the cell. The research also employs
the electrophysiological methods to elucidate the role of light-induced
Ca2+ flux and membrane potential changes in the sensory transduction
process.
Telephone Numbers
Office: (402)472-2749
Lab: (402)472-9172
FAX: (402) 472-3404
Click in the images for bigger picture.
...standing by the "Leaning Tower of Skokie, IL"!
|
Song outside of the Photobiology office at UNL.
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Song's Lab members
The KASTN homepage
Calendar of meetings
in Korea
Alta Vista search index
Photobiology Online
Photosensory Biology
Division of ASP
Seoul Travel Information
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