To provide further information on the occurrence and geographical
variations of bioluminescent capabilities of marine dinoflagellates,
forty species, representing twelve genera, of dinoflagellates
from Yaquina Bay, Oregon, were examined for bioluminescence as
single cell isolates. Seventeen species from the genera Ceratium
(1 sp.), Gonyaulax (3 sp.), and Peridinium (13 sp.)...
A comparative study was made of the morphology and histology of
three major groups of light organs in the genus Lampanyctus of the
family Myctophidae for the species, L. leucopsarus, L. ritteri,
L. nannochir, and L. regalis. The species can be divided according
to their ranges in depth, the first...
The nature of the bioluminescence of Gonyaulax catenella is
similar to that observed for other dinoflagellates in culture, showing
photoperiod-entrained rhythms of luminescence and stimulability
with relatively constant luminescent capacity during scotophase. G.
catenella is very sensitive to stimulation and photoinbibition. The
nature of the response to stimulation by bubbling...
A practical and versatile instrument has been developed both to
optimize the chemistry of bio- and chemiluminescence reactions and to
measure ultra-trace quantities of associated analytes. The instrument
consists of a pneumatic flow injection system linked to a detection cell and a
signal processing and readout system. The disk-like cell...
Salicylate-induced, lux gene dependent bioluminescence was measured using a cooled charge-coupled device (CCD) camera to evaluate its potential as a quantitative measurement of cell density of Pseudomonas fluorescens HK44 in porous media. The CCD camera was able to detect bioluminescence from cell densities between 1x10⁶ and 1x10⁸ cells/ml in both...