00000caa a22000003i 4500 UP-1685594773862388368 Buklod 20210310214302.0 m | | ta 210310s2017 xx r |||| u|eng d (iLib)UPBAG-00039458370 STII-DOST BAG rda eng ARTICLE-2573 Dahilan, Joshua Karl A. author. Bioavailability and accumulation assessment of copper in Pityrogramma calomelanos by Joshua Karl A. Dahilan and Juliet Q. Dalagan. 2017. pages 331-338 color illustrations 26 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references (pages 337-338) Bioavailability and hyperaccumulation of copper (Cu) in Pityrogramma calomelanos was evaluated using sequential extraction technique (SET) and atomic absorption spectrophotometry (AAS). Bioaccumulation factor (BAF) was found to be greater than 1 which means that P. calomelanos is a metallophyte, a plant capable of accumulating metals into its roots and shoots. Translocation factor (TF) which was less than 1 signified that P. calomelanos is a possible excluder, a plant that prevents metal transport to the plant shoots. The highest Cu uptake in the fronds was 821.60 mgCu/kgdry weight indicating that the plant is not a hyperaccumulator. Fourier transform infrared (FTIR) spectrum of the soil, above and below ground parts of the plant revealed shifting of the absorption bands which is indicative of the interaction of Cu with the functional groups present in the plant and soil. FTIR spectra of above and below ground parts of the plant showed the interaction of Cu with the O-H group of the carboxylic acid at 2973 cm-1, Cu with C=O group at about 1639 cm-1 and Cu with C-H group at 1162 cm-1. FTIR spectra of the soil illustrated the attachment of Cu to soil minerals by the emergence of the 1033 cm-1 peak. Bioavailable Cu through SET analysis revealed 430.70 mgCu/kgsoil of soluble and exchangeable Cu, 380.67 mgCu/kgsoil of Cu bound to carbonates and 425.97 mgCu/kgsoil of Cu bound to iron and manganese oxides. (Author's abstract) Fisheries. Accumulation assessment. Bioaccumulation factor. Bioavailability. Copper. Hyperaccumulator. Pityrogramma calomelanos. Translocation factor. Dalagan, Juliet Q. 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-2573 Analytics