Uptake, Translocation, and Bioaccumulation of Elements in Forest Nettle (Laportea alatipes)

Elements found in the edible parts of plants are considered to be the main source of nutrients for humans and animals. However, there is insufficient information on the relationship between heavy metal pollution in the growing soil of most edible plants. In this study, the distribution of elements i...

Full description

Saved in:
Bibliographic Details
Published in:Analytical letters 2019-05, Vol.52 (7), p.1050-1067
Main Authors: Mahlangeni, Nomfundo Thobeka, Moodley, Roshila, Jonnalagadda, Sreekanth Babu
Format: Article
Language:English
Subjects:
Bioaccumulation
Bioaccumulation factor
Cadmium
Chromium
Copper
Forests
Geographical locations
Heavy metals
inductively coupled plasma-optical emission spectrometry
Iron
Lead
Manganese
Nickel
Nutrients
Physiological effects
principal component analysis
Principal components analysis
Rural areas
Silicates
Soil contamination
Soil pollution
Suburban areas
trace metal
Trace metals
translocation factor
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Elements found in the edible parts of plants are considered to be the main source of nutrients for humans and animals. However, there is insufficient information on the relationship between heavy metal pollution in the growing soil of most edible plants. In this study, the distribution of elements in the edible forest nettle (Laportea alatipes) was evaluated as a function of geographical location. Forest land soils had higher concentrations of minor elements (Cu, Cr, Ni, and Zn) compared to soils from rural and suburban areas. Translocation factors for Cd and Pb showed effective translocation from the roots to the leaves; however, these heavy metals in leaves were still above South African maximum permissible levels for vegetables. Atmospheric depositions may play a significant role in higher Cd and Pb concentrations in the leaves. Bioaccumulation factors showed the plant to accumulate Cu, Mn, and Zn to meet physiological requirement levels. Geoaccumulation indices and enrichment factors showed no soil contamination or minimal enrichment by trace metals. Principal component analysis showed Co, Cr, Cu, Fe, Ni, Pb, and Zn in soil to originate from a common source which may be soil silicates and other minerals.
ISSN:0003-2719
1532-236X
DOI:10.1080/00032719.2018.1513020