Determination of Gold Phytoavailability in Soil by Diffusive Gradients in Thin Films and Brassica juncea L Plant

DOI

10.2991/978-94-6463-520-1_3How to use a DOI?

Keywords

gold (Au); Diffusive Gradients in Thin Films; brassica juncea; bioconcentration factor; translocation factor

Abstract

Diffusive gradients in thin films (DGT) techniques, a recently developed approach for assessing gold (Au) phytoavailability is beginning to gain traction due to its advantages over conventional soil extractants. A greenhouse study was conducted to determine Au thresholds and the phytoavailability of Au to white mustard (brassica juncea L.), compared with DGT method. Treatments were Au 5 mg/kg levels in soil. In DGT method Au uptake were increase 0.1245 – 2.4697 µg/L To obtain various amounts of Au phytoavailability, the phytoaccumulative mechanism of gold metal (Au) in plants through variations in the length of planting time 2-8 weeks on the migration and accumulation of Au in plant root and shoot. The results of the research showed an increase in the concentration of gold metal with planting times of 2, 4, 6 and 8 weeks which was absorbed from 0.2662 – 2.1314 mg/kg with an average content of gold metal bound to the roots of 0.1398 – 1.1855 mg/kg is higher than gold metal which migrates to the shoot 0.1264 – 0.9459 mg/kg. The phytoaccumulative mechanism of plants regarding the concentration of bound metals is determined by calculating the bioconcentration factor (BCF) and translocation factor (TF) both of which are indicators that can differentiate the accumulation mechanism between phytostabilization and phytoextraction. The calculation results show the BCF value is 0.0532 – 0.4262 while the TF value is 0.3597 - 0.9041. so it can be said that the accumulation of gold metal in brassica juncea plants occurs through a phytoextraction mechanism. The performance of DGT and brassica juncea plant were similar for assessing Au phytoavailability.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Khairuddin Khairuddin
AU  - Ruslan Ruslan
AU  - Muhammad Mirzan
AU  - Ahmad Fauzan Tambuak
PY  - 2024
DA  - 2024/12/05
TI  - Determination of Gold Phytoavailability in Soil by Diffusive Gradients in Thin Films and Brassica juncea L Plant
BT  - Proceedings of the 5th International Seminar on Science and Technology (ISST 2023)
PB  - Atlantis Press
SP  - 12
EP  - 17
SN  - 2352-541X
UR  - https://doi.org/10.2991/978-94-6463-520-1_3
DO  - 10.2991/978-94-6463-520-1_3
ID  - Khairuddin2024
ER  -