00000caa a22000003i 4500 UP-1685594773862388362 Buklod 20210310204442.0 m | | ta 210310s2017 xx r |||| u|eng d (iLib)UPBAG-00039458364 STII-DOST BAG rda eng ARTICLE-2567 Obena, Rofeamor P. author. Pyrodinium bahamense var. compressum böhm survival in high and low cadmium levels by Rofeamor P. Obena, Susan R. Arco, and Rhodora V. Azanza. 2017. pages 287-292 illustrations (some color) 26 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references (pages 291-292) Pyrodinium bahamense var. compressum (Pbc) is a major public health concern particularly in the Southeast Asian region, and increasing threat brought by heavy metal pollution has greatly disturbed and altered the ecological balance of the region?s marine waters. Herein, we report the effect of cadmium, a biotoxic metal, to cell cultures of Pbc. Within 72 h after treatment with high cadmium concentration (50 ppm Cd2+), the cell density dramatically declined. Chlorophylls a and c2 also decreased after 30-day exposure. However, the low Cd2+ (1 ppm)-treated cells had comparable response to the untreated cultures. Thus, the organism?s ability to survive under low dose of cadmium implies a built-in stress response mechanism, but higher concentration is lethal to its survival and growth. The result of this study may lead to clearer insight on the role of metal ions in the growth and bloom dynamics of this important dinoflagellate. (Author's abstract) Chemistry. Cadmium. Cell density. Chlorophyll, growth. Pyrodinium bahamense. Uptake. Arco, Susan dR. author. Azanza, Rhodora V. author. The Philippine Journal of Science Vol. 146, no. 3, September 2017. Request full-text access via UPB University Library through https://forms.gle/KZjBv7aRtY6jiL5E9 (viewed 10 March 2021) FI UPBAG UPBAG-MAIN ARTICLE-2567 Analytics