Related Experiment Video
Updated: Dec 23, 2025

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium
Published on: December 17, 2018
Tolerance mechanism of cadmium in Ceratopteris pteridoides: Translocation and subcellular distribution
Monashree Sarma Bora1, Nirmali Gogoi1, Kali Prasad Sarma1
1Department of Environmental Science, Tezpur University, Napaam, Tezpur, Assam, India.
Abstract:
Hydroponic experiment was conducted to investigate the biochemical responses and accumulation behaviour of cadmium (Cd) in aquatic fern, Ceratopteris pteridoides, under four different levels of exposure. Plants were grown in 10 μM (CdT1), 20 μM (CdT2), 40 μM (CdT3) and 60 μM (CdT4) concentrations of Cd for 12 consecutive days and Cd accumulation in different plant parts, cell levels and growth medium was estimated. In C. pteridoides, Cd removal kinetics was best described by pseudo-second-order kinetic model. Increased accumulation of Cd in the plants was detected in a concentration dependent manner with maximum under 60 μM of Cd (CdT4) exposure (191.38 mg kg-1, 186.19 mg kg-1 and 1316.34 mg kg-1 in leaves, stems and roots, respectively). Cell wall of C. pteridoides is identified as crucial Cd storage site with the highest (28-69%) accumulation followed by organelles (14-44%) and soluble fraction (6-46%). Increased leaf proline, malondialdehyde (MDA) and protein content with significant reduction (P < 0.05) in chlorophyll concentration and upregulation of antioxidant enzymes catalase (CAT), guaiacol peroxidase (POD) and superoxide dismutase (SOD) reveals the presence of Cd resistance mechanism in C. pteridoides. Calculated higher (>1) bioconcentration factor (BCF) and lower (<1) translocation factor (TF) values evinced the suitability of C. pteridoides in Cd phytostabilization rather than phytoextraction.
More Related Videos
09:13Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements
Published on: July 13, 2016
09:01A High-throughput Assay for the Prediction of Chemical Toxicity by Automated Phenotypic Profiling of Caenorhabditis elegans
Published on: March 14, 2019
Related Concept Videos
C4 Pathway and CAM
C4 Pathway
The C4 pathway is used by plants such as...
Structure of Cadherins
Cadherins in Tissue Organization
Cell Sorting During Development
Cell sorting plays an...
Responses to Salt Stress
Global Regulatory Systems
The Calvin Benson Cycle