Phytoextraction of trace elements and physiological changes in Indian mustard plants ( Brassica nigra L.) grown in post methanated distillery effluent (PMDE) irrigated soil

• Published in: Bioresource technology 2008-11, Vol.99 (17), p.8316-8324
• Main Authors: Bharagava, R.N., Chandra, R., Rai, V.
• Format: Article
• Language: English
• Subjects: Acids; Antioxidants - analysis; Ascorbic Acid - analysis; Biological and medical sciences; Biotechnology; Brassica nigra; Cysteine - analysis; Environment and pollution; Food industries; Fundamental and applied biological sciences. Psychology; Germination; Industrial applications and implications. Economical aspects; Industrial Waste; Lipid Peroxidation; Malondialdehyde - analysis; Mustard plant; Mustard Plant - growth & development; Mustard Plant - physiology; Photosynthesis; Phytoremediation; Pigments, Biological - analysis; Plant Leaves - chemistry; Plant Proteins - analysis; Post methanated distillery effluent; Seeds - chemistry; Soil; Trace element; Trace Elements - analysis; Trace Elements - isolation & purification; Use and upgrading of agricultural and food by-products. Biotechnology; Waste Disposal, Fluid
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2008.03.002

The metal accumulation potential and its physiological effects in Indian mustard plants ( Brassica nigra L.) grown in soil irrigated with post methanated distillery effluent (25%, 50%, 75%, 100%, v/v) were studied after 30, 60 and 90 days after sowing. An increase in the chlorophyll and protein contents was recorded at the lower concentrations of post methanated distillery effluent (PMDE) at initial exposure periods followed by a decrease at higher concentrations of PMDE compared to their respective controls. An enhanced lipid peroxidation in tested plants was observed, which was evidenced by the increased malondialdehyde content in shoot, leaves and seeds at all the concentrations of PMDE and exposure periods compared to their respective controls. This study revealed that Indian mustard plants ( B. nigra L.) are well adopted to tolerate and accumulate high quantities of trace elements due to increased level of antioxidants (cysteine and ascorbic acid) in root, shoot and leaves of the treated plants at all the concentrations and exposure periods except at 90 days, whereas a decrease was observed at 100% PMDE as compared to their respective controls.