Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/22117
Title: Ecotoxicology and bioaccumulation of zinc in marine organisms
Researcher: Laxmi Priys, S
Guide(s): Ramesh, R
Keywords: Bioaccumulation
Ecotoxicology
Marine Organisms
Zinc
Upload Date: 5-Aug-2014
University: Anna University
Completed Date: n.d.
Abstract: Leather processing industry is known to be associated with the newlinegeneration of liquid waste with high Total Dissolved Solids TDS in newlineparticular salinity Consequently the disposal of the tannery wastewater with newlinehigh salinity has become a major concern for the tanning industry Salicornia newlinebrachiata is an annual halophyte belonging to the Chenopodiaceae family and newlineis distributed throughout the world It is a green jointed vascular flowering newlineand leafless halophytic plant that carries articulated succulent stems newlineThe main objective of this study is to remediate the salinity from newlinetannery wastewater contaminated lands by using S brachiata It was grown in newlinepots fed with varying concentrations of sodium chloride NaCl viz 0 100 newline200 300 400 500 and 600 mM under laboratory conditions for a period of newline90 days The effect of salt stress on morphological and physiological newlinecharacteristic changes of S brachiata in pot study was observed newlineAt every 30 days interval the S brachaita plant samples were newlinecollected and measured the shoot root length and fresh and dry weight of newlinesamplesThe optimal growth of S brachiata plants were observed at 500 mM newlineof NaCl The experimental plants showed a decrease in chlorophyll newlinecarbohydrate lipid contents with an increase in concentration of NaCl newlineHowever accumulation of sodium and chloride protein and proline were newlineincreased by an increase in concentration of NaCl with particular reference to newlinesalinity due to osmotic stress The polypeptide profiling of S brachiata under newlinethe influence of salinity has been analyzed The effect of salinity stress on newlinepolyphenol content and changes in antioxidant enzyme activities were newlineanalyzed Polyphenol content was increased at 600 mM on 90 th day of NaCl newlinetreated S brachiata The antioxidant enzymes such as Polyphenol oxidase newlinePPO Catalase CAT and Superoxide Dismutase SOD were analyzed newlineThe gene sequence of S brachiata was identified using ITS rDNA newlinemarker S brachiata plants were treated with soaking wastewater resulted in newlinedrastic reduction of growth in terms of fresh and dry weight newline newline
Pagination: xxiii, 245p.
URI: http://hdl.handle.net/10603/22117
Appears in Departments:Faculty of Science and Humanities

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02_certificate.pdf375.96 kBAdobe PDFView/Open
03_abstract.pdf81.32 kBAdobe PDFView/Open
04_acknowledgement.pdf58.92 kBAdobe PDFView/Open
05_contents.pdf140.7 kBAdobe PDFView/Open
06_chapter 1.pdf579.03 kBAdobe PDFView/Open
07_chapter 2.pdf8.58 MBAdobe PDFView/Open
08_chapter 3.pdf536.61 kBAdobe PDFView/Open
09_chapter 4.pdf3.48 MBAdobe PDFView/Open
10_chapter 5.pdf237.32 kBAdobe PDFView/Open
11_chapter 6.pdf293.73 kBAdobe PDFView/Open
12_chapter 7.pdf163.07 kBAdobe PDFView/Open
13_chapter 8.pdf93.43 kBAdobe PDFView/Open
14_ references.pdf394.07 kBAdobe PDFView/Open
15_publications.pdf77.84 kBAdobe PDFView/Open
16_vitae.pdf57.35 kBAdobe PDFView/Open


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