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Seasonal stability of sulfuric acid accumulation in the Dictyotales (Phaeophyceae)
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.1440-183.2005.00379.x
Subject(s) - biology , sulfuric acid , botany , ecology , materials science , metallurgy
SUMMARY Concerning the accumulation of S0 4 2‐ in cells, three types of species are known in the Dictyotales: (i) acidic type (high H 2 S0 4 accumulation); (ii) high MgS0 4 accumulation type; and (iii) nonacidic type (low S0 4 2‐ accumulation). Seasonal changes of intracellular pH and concentrations of inorganic ions were examined in six dictyotalean species. In acidic species (Dictyopteris prolifera (Okamura) Okamura and Spatoglossum eras‐sum J. Tanaka), intracellular concentrations of S0 4 2‐ and H + estimated by pH were high through all seasons. In high MgS0 4 accumulating species (Dictyotasp. and Padina arborescens Holmes), intracellular concentrations of S0 4 2‐ and Mg 2+ were high through all seasons. In nonacidic species (Dictyota dichotoma (Hudson) Lamouroux and Dictyopteris undulata Holmes), intracellular concentration of sulfuric acid ion was low all year round.