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UTILIZATION OF F e 3 + BY THE INSHORE COLORLESS MARINE DINOFLAGELLATE CRYPTHECODINIUM COHNII *
Author(s) -
Levandowsky M.,
Hutner S. H.
Publication year - 1975
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1975.tb26828.x
Subject(s) - aurintricarboxylic acid , sulfosalicylic acid , dipicolinic acid , salicylic acid , nuclear chemistry , chemistry , salicylhydroxamic acid , linoleic acid , oxalate , sulfate , biochemistry , inorganic chemistry , biology , fatty acid , botany , organic chemistry , apoptosis , spore , programmed cell death , enzyme
A Puerto Rican isolate of the colorless dinoflagellate Crypthecodinium cohnii was grown in a defined marine medium. Fe was added as Fe(NH4)2(SO3)2 - 6H2O (2.0 mg%), FeCl3 - 6H2O (1.0 mg%) or a particulate slurry prepared from FeCl3 + KOH, along with varying concentrations of several chelators. Heavy growth at pH 7.5-7.7 occurred with salicylhydroxamic acid, aurintricarboxylic acid, EDTA, NTA, and humic acid; and at pH 7.9-8.1 with SHAM and ATA. Moderate growth occurred at pH 7.5-7.7 with sulfosalicylic acid, dipicolinic acid, pyrocatecholdisulfonic acid, hexanohydroxamic acid, L-histidine, and at pH 7.9-8.1 with 1-naphthohydroxamic acid, EDTA, NTA. Slight growth occurred at pH 7.5-7.7 with benzohydroxamic acid, 1-naphohydroxamic acid, 2.6-dipicolinic acid N-oxide, salicylic acid, rhodotorulic acid, Na oxalate, EDDHA, sorbohydroxamic acid, gamma-pyrone-2, 6-decarboxylic acid, and at pH 7.9-8.1 with hexanohydroxamic acid, benzohydroxamic acid. Some ecological and physiological implications are discussed.