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Inorganic ion compositions in the Ulvophyceae and the Rhodophyceae, with special reference to sulfuric acid ion accumulations
Author(s) -
Sasaki Hideaki,
Murakami Akio,
Kawai Hiroshi
Publication year - 2005
Publication title -
phycological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.438
H-Index - 44
eISSN - 1440-1835
pISSN - 1322-0829
DOI - 10.1111/j.1440-183.2005.00372.x
Subject(s) - biology , ulvophyceae , sulfuric acid , botany , ion , inorganic chemistry , algae , chlorophyta , chemistry , organic chemistry
SUMMARY Cellular pH estimated from cell extract pH, and the ion compositions of major inorganic ions (Na + , NH 4 + , K + , Mg 2+ , Ca 2+ , Cl − , Br − , NO 3 − , S0 4 2 ‐) were studied by ion chromatography in 15 species of 4 orders (Cladophorales, Codiales, Siphonocladales and Ulvales) of Ulvophyceae and 49 species of 8 orders (Bangiales, Ceramiales, Corallinales, Cryptonemiales, Gelidiales, Gigartinales, Nemaliales and Rhodymeniales) of Rhodophyceae. Among the Rhodophyceae, relatively low intracellular pH (approximately 2.0 within cells) and high concentration of S0 4 2‐ was demonstrated in Plocamium telfairiae( Harvey) Harvey. Furthermore, five species of Hypnea Lamouroux were shown to contain high concentrations of S0 4 2‐ balanced by relatively high concentrations of Na + . Among the Ulvophyceae, Codium cylindricum Holmes and Ulva pertusa Kjellman contained high concentrations of S0 4 2‐ balanced by relatively high concentrations of Mg 2+ .