Article
Lead phyto-toxicity induced by accumulation and uptake potentially inhibits morpho-physiological depression and alterations in an aquatic model plant, Eichhornia crassipes
EurAsian Journal of BioSciences
(2019)
Abstract
We concentrated on elucidating the potential of the most widely grown aquatic model plant,
Eichhornia crassipes, to remove lead (Pb), one of the most dangerous environmental pollutants. Plant
biomass content as well as various morpho-physiological parameters, such as leaf area, relative
water content, proline level, and relative growth rates, was determined upon Pb - treatments. Data
from atomic absorption spectrophotometry revealed an increase in Pb within root and leaf tissues,
and Pb nitrate showed higher concentrations than Pb acetate in the plants. An observed trend toward
increased cysteine content may lead to an increase in the bioavailability of Pb. Additionally, significant
variations in pigment contents were observed along with an increase in lipid peroxidation.
Accumulation and uptake, were both dependent on dose and duration in these potentially Pb
absorbent plants. The concentration efficiency noticeably increased as a result of increases in the
length as well the dose of treatment. Water hyacinth, via root uptake and accumulation mechanisms
that influenced morphological and physiological adaptations, was found to be effective in reducing
the concentrations of lead in both the acetate and nitrate forms.
Keywords
- Plants,
- nature,
- environment
Disciplines
Publication Date
2019
Citation Information
R K Upadhyay. "Lead phyto-toxicity induced by accumulation and uptake potentially inhibits morpho-physiological depression and alterations in an aquatic model plant, Eichhornia crassipes" EurAsian Journal of BioSciences Vol. 13 (2019) p. 1565 - 1573 ISSN: 1307-9867 Available at: http://works.bepress.com/rk_upadhyay/12/