Utilization and Excretion of Dissolved Organic Phosphorus by Atexandrium tamarense (Hiroshima Bay Strain)

DOI IR JASI Web Site 1 Citations Open Access

Bibliographic Information

Other Title
  • 有毒渦鞭毛藻Alexandrium tamarense(広島湾株)による溶存態有機リンの利用と排出
  • ユウドク ウズ ベンモウ ソウ Alexandrium tamarense ヒロシマワンカブ ニ ヨル ヨウゾンタイ ユウキ リン ノ リヨウ ト ハイシュツ

Search this article

Description

Capability of utilization and excretion of dissolved organic phosphorus (DOP) by the toxic dinoflagellate Alexandrium tamarense (Hiroshima Bay strain) was investigated with both batch and semi-continuous cultures using natural aged-seawater from Hiroshima Bay. In the batch cultures, significant net DOP uptake was detected in phosphate concentrations below 2μM, while net DOP excretion was observed above this concentration. The semi-continuous culture showed that A. tamarense excretes DOP at high dilution rates. At these rates, this organism grows fast by utilizing sufficient phosphate in the medium. These experiments, although preliminary, suggest that A. tamareme (Hiroshima Bay strain) can utilize DOP of natural seawaters under a condition of low phosphate concentration and excretes DOP under a condition of high phosphate concentration.

Journal

Citations (1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top