Biochemical responses and accumulation of cadmium in Spirodela polyrhiza.

Abstract:

:The present study focused on biochemical responses of Spirodela polyrhiza to cadmium stresses and its accumulation. The laboratory experiments were conducted for the assessment of biochemical responses and accumulation of cadmium in plants at its various concentrations (0.1, 0.5, 1.5 and 2.0 ppm) at the regular interval for twelve days exposure. Spirodela showed visible symptoms like withering of roots and chlorosis at higher concentration (2.0 ppm), however the plant showed normal growth at lower concentration (0.1 ppm). The estimation of biochemical parameters (total chlorophyll, protein and carbohydrate) of test plants showed a significant increase at lower concentration (0.1 ppm) of cadmium. The biochemical changes decrease with increase in exposure concentration and duration. The toxic effect of cadmium is directly proportional to its concentration and duration. The accumulation of cadmium by Spirodela polyrhiza was maximum at four days exposure duration and gradually decreases.

journal_name

J Environ Biol

authors

Rolli NM,Suvarnakhandi SS,Mulgund GS,Ratageri RH,Taranath TC

subject

Has Abstract

pub_date

2010-07-01 00:00:00

pages

529-32

issue

4

eissn

0254-8704

issn

2394-0379

journal_volume

31

pub_type

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