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Indolylalkylamine determination was performed on the eggs and embryos of six species of sea urchins, using several fluorometric techniques, including the fluorescence of a substance itself and the fluorescence of its condensation products after treatment with orthophthaldialdehyde and ninhydrin. The serotonin-like substance of sea urchin embryos as well as of adults was shown to consist of at least two components, of which the major one is tryptamine or its derivative with a substituting group at aminonitrogen. Further, serotonin was found to be present at all developmental stages investigated. although at much lower concentrations. The results of this study suggest a regulatory role of 'prenervous' tryptamine in the early embryogenesis of the sea urchin.
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
January 1985,
International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
August 1982,
Experimental cell research,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
June 1974,
Experimental cell research,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
June 1990,
Biulleten' eksperimental'noi biologii i meditsiny,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
January 1983,
Scanning electron microscopy,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
July 1999,
Cutis,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
November 1971,
FEBS letters,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
January 1975,
Ontogenez,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
January 1971,
Progress in biophysics and molecular biology,
B N Manukhin, and
E V Volina, and
L N Markova, and
L Rakic, and
G A Buznikov
March 1984,
FEBS letters,
