Alterations in physiological and biochemical responses under arsenic (As) phytotoxicity were investigated in aquatic model plant, Spirodela polyrhiza L. Decrease in dry matter and total chlorophyll was observed in this plant under treatment at increasing concentrations. Similar decrease in protein and carotenoid contents was also recorded compared to the control. Increase in malondialdehyde, an index of lipid peroxidation, membrane damage and ion leakage increased under As treatment as compared to the non-treated plants. Accumulation of As was found to be maximum at higher concentration as compared to the control samples. This study revealed that As imposed stress increased the membrane damage, as is evident by the increased values of electrical conductivity and lipid peroxidation under repeated exposure.
Explore the mystery of how nature makes unexpected gifts of creative wonders to an unsuspecting caregiver one late night and early morning in southeastern Georgia, USA.
A book of nature inspired poems and essays, written from the heart and soul of a life-long nature, animal, and wilderness lover, and dedicated to today’s children - Earth's only hope for a better tomorrow.
This book won 'The Poetry Category'
