Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

header
Reach Us reach to JOCPR whatsapp-JOCPR +44 1625708989
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Original Articles: 2012 Vol: 4 Issue: 12

Impact of 2,4-D sodium salt and automobile exhaust on the photosynthetic pigment and ascorbic acid content of Cymbopogon martinii

Abstract

Plants are exposed to a variety of anthropogenic ga seous and liquid pollutants which change the cellul ar biochemistry of plants directly or indirectly leadi ng to reduced morphological growth. In this study w e tried to correlate the combined impact of 2, 4-D sodium salt and automobile exhaust on the foliar chlorophyll a nd ascorbic acid content of Cymbopogon martinii. Two sites 1: B .B.A.U. campus as control site (less polluted) and 2: NBRI campus at Sekandarbagh crossing (one of the busiest crossings of Lucknow City) were selected based on the vehicular density. Three concentrations viz. 30mg/l , 100mg/l and 300mg/l of 2,4-D sodium salt were giv en to the plants. It was observed that exposure to 2, 4-D so dium salt led to an increase in ascorbic acid conte nt from 4±1.0 μ g/g f.w.in T3 (30mg/l of 2, 4-D) to 16.83±1.76 μ g/ g f.w.in T5 (300mg/l of 2,4-D) at the control site and from 22.23±3.35 μ g/g f.w. in T3 to 38.20±1.31 μ g/g f.w.i n T5 at the polluted site. However, foliar pigment content decreased significantly which corroborated with the deterioration of other plant growth parameters lik e total photosynthetic area and stem girth. The ultra struc tural changes in foliar morphology revealed that th ese plants can be used as biomarkers for auto exhaust pollution.

http://sacs17.amberton.edu/

rtp slot demo