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Journal Title Abbrev.
J. Elem.
ISSN – 1644-2296
DOI: 10.5601

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Exogenous spermidine- and kinetin-mediated changes in the content of heavy metal elements and in the biomass of mashbean grown in chromium and lead polluted soils

Issue: 3/2022

Recevied: Dec 29, 2021

Accepted: Aug 11, 2022

Published: 2022-09-07

Authors:

Ahmad A., Altaf A., Haq I., Saima S., Yasin G.

Categories: Agricultural, Pollution and environment

DOI: 10.5601/jelem.2022.27.2.2235

Abstract:

The aim of the experiment was to evaluate the role of kinetin and spermidine in modifying the metal uptake and biomass accumulation by mash bean. Four mash bean varieties were grown in pots. In one group of plants, chromium (Cr) was added in doses of 30 and 60 mg kg-1 of soil material. In another group, lead (Pb) was added in doses of 20 and 40 mg kg-1 of soil material. Plants were sprayed twice, at the age of 20 and 30 days, with 1.0 mM strength of spermidine and 100.0 mM that of kinetin. Each treatment was replicated four times. The pots were arranged in complete randomization. Data of four replicates were taken at the physiological maturity of plants. Concentrations of chromium and lead elements in the root stem and seeds were determined, in addition to dry biomass. Data were subjected to statistical analysis using COSTAT statistical package software. Significant reductions were recorded in the concentrations of elemental heavy metals in the root, stem and seeds induced by kinetin and spermidine. Furthermore, biomass was increased by kinetin and spermidine. In plants grown under chromium stress, kinetin and spermidine were found more effective in reducing the concentration of chromium in roots and shoots but the analogous effect was insignificant regarding the reduction of chromium concentration in seeds. When lead stress was imposed, spermidine was found to be more effective in reducing concentrations of lead in the root and shoot but kinetin was proven to be less effective in this regard. The effects of both PGRs were found to be pronounced in alleviating the metals’ toxicities in terms of plant air dried biomass.

Citation:

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Yasin G., Saima S., Haq I. , Altaf A., Ahmad A. 2022. Exogenous spermidine- and kinetin-mediated changes in the content of heavy metal elements and in the biomass of mashbean grown in chromium and lead polluted soils. J. Elem., 27(3): 709 - 726. DOI: 10.5601/jelem.2022.27.2.2235

Keywords:

Biomass, Chromium, Kinetin, Lead, Spermidine, Vigna mungo L. Hepper

About issue:

27.3.2022
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