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COMPARATIVE STUDIES ON ALDOLASE ACTIVITY IN MARINE PLANKTONIC ALGAE, AND THEIR EVOLUTIONARY SIGNIFICANCE 1
Author(s) -
Antia Naval J.
Publication year - 1967
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1967.tb04635.x
Subject(s) - biology , phaeodactylum tricornutum , botany , algae , chlorophyta , aldolase a , ulvophyceae , biochemistry , enzyme
SUMMARY Fructose diphosphate aldolase activity was examined in acetone powders and cell‐free extracts of 15 photoautotrophically grown marine planktonic species belonging to 6 algal divisions as follows: Chlorophyta: Tetraselmis maculata, Dunaliella tertiolecta; Chrysophyta: Monochrysis lutheri, Isochrysis galbana, Prymnesium parvum, Coccolithus huxleyi; Bacillariophyta: Phaeodactylum tricornutum, Skeletonema costatum, Cyclotella nana; Cryptophyta: Cryptomonas sp., Rhodomonas lens, Hemiselmis virescens; Pyrrophyta: Amphidinium carteri; Cyanophyta: Anacystis marina, Agmenellum quadruplicatum. Indications of the types of aldolase (Rutter's classes) present in each alga were obtained from comparative studies of the effects of pH and of the following reagents on the activity: ethylenediamine tetraacetate, dithiothreitol, p‐chloromercuriphenyl sulfonate. Type I (higher plant‐animal type) aldolase only was indicated in the 2 chlorophytes, in I chrys‐ophyte (M. lutheri), and in 1 bacillariophyte (P. tricornutum), while the remaining algae appeared to contain either exclusively or principally Type II (bacterial‐fungal type) aldolase. The evolutionary implications of these findings are discussed.