Chromium in tannery industry effluent and its effect on plant metabolism and growth.
Different dilution levels of tannery treated effluent and their corresponding concentration of chromium (Cr6+) were studied in a petridish culture experiment on seed germination and seedling growth in radish (Raphanus sativus L). The different concentrations of Cr6+ (2, 5 and 10 ppm) and treated tannery effluent (10, 25 and 50%) showed reduction in seedling growth and related enzymatic activities with increase in concentration of Cr6+ in treatments and effluent both. The low concentration of chromium (2 ppm) and effluent dilution (10%) showed significant growth reduction separately. At this concentration of chromium and effluent dilution chlorophyll content, amylase, catalase and protein contents remained unchanged while with increase in Cr6+ concentration (>2ppm) and effluent dilution (> 10%) in treatments showed growth inhibitory effects.
Nath
Kamlesh
K
Botany Department, Lucknow University, Lucknow 226 007, India.
Saini
Sonia
S
Sharma
Yogesh Kumar
YK
D000681:Amylases / Q000378:metabolism; D018533:Biomass; D002374:Catalase / Q000378:metabolism; D002734:Chlorophyll / Q000378:metabolism; D000077194:Chlorophyll A; D002857:Chromium / Q000633:toxicity*; D018525:Germination / Q000187:drug effects; D007220:Industrial Waste; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development; D031224:Raphanus / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D012639:Seeds / Q000187:drug effects / Q000254:growth & development; D013633:Tanning; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000633:toxicity*; D000516:alpha-Amylases / Q000378:metabolism; D001614:beta-Amylase / Q000378:metabolism
D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D002857:Chromium; D002734:Chlorophyll; C037184:chlorophyll b; D002374:Catalase; D000681:Amylases; D000516:alpha-Amylases; D001614:beta-Amylase; D000077194:Chlorophyll A