Publication:
Effect of salicylic acid (SA) on Nicotiana tabacum grown under lead (Pb) stress

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dc.contributor.affiliation#PLACEHOLDER_PARENT_METADATA_VALUE#en_US
dc.contributor.authorNurul Izzah binti Abdul Halimen_US
dc.date.accessioned2024-10-09T07:51:02Z
dc.date.available2024-10-09T07:51:02Z
dc.date.issued2017
dc.description.abstractLead (Pb) is one of the main environmental toxicant that cause physiological and biochemical dysfunction in plants. Compounds involved in modification of heavy metals stress are important to mitigate the toxicity effect of heavy metals. Salicylic acid (SA) is one of the compounds that has the ability to counteract Pb toxicity. The aim of this study was to investigate the effects of SA on the physiology, oxidative level, Pb content and transcript level of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) in Pb-treated N. tabacum. N. tabacum was propagated and treated with SA and Pb. The morphology and physiology of Pb-treated N. tabacum were visually observed and measured. Histochemical staining of diaminobenzidine (DAB) and nitro blue tetrazolium (NBT) was conducted to assesses the effect of SA on the accumulation of O2– and H2O2, and inductively-coupled plasma mass spectrometry (ICP-MS) was performed to examine Pb content and Pb translocation factor in Pb-treated N. tabacum. The transcript levels of SOD, CAT and POD were measured using real time PCR. The present study demonstrated that the application of SA improved growth parameters, abolished the accumulation of hydrogen peroxide (H2O2) and superoxide (O2–), and reduced the content of Pb in leaves of Pb-treated N. tabacum. Transcript level of SOD, CAT and POD were not regulated by SA and Pb treatments. SA mitigation of Pb toxicity in Pb-treated N. tabacum might be not at the level of gene expression, but affected the uptake, detoxification, and sequestration of Pb. The results of this study has shown the importance of SA in alleviating the Pb stress and suggests that SA could be used as a potential growth regulator to improve plant growth under Pb stress.en_US
dc.description.callnumbert QK 745 N974E 2017en_US
dc.description.degreelevelMaster
dc.description.holdFulltext can only be viewed within IIUM Libraries
dc.description.identifierThesis : Effect of salicylic acid (SA) on nicotiana tabacum grown under lead (Pb) stress /by Nurul Izzah binti Abdul Halim
dc.description.identityt11100370511NurulIzzahAbdulHalim
dc.description.kulliyahKulliyyah of Scienceen_US
dc.description.notesThesis (MSBTS)--International Islamic University Malaysia, 2017.
dc.description.physicaldescriptionxx, 119 leaves :illustrations ;30cm.en_US
dc.description.programmeMaster of Science (Biotechnology)en_US
dc.identifier.urihttps://studentrepo.iium.edu.my/handle/123456789/11533
dc.identifier.urlhttps://lib.iium.edu.my/mom/services/mom/document/getFile/fb6pppvtkWQpndLOL0haNmrXaQBjqVZn20171012154857897
dc.language.isoenen_US
dc.publisherKuantan, Pahang : Kulliyyah of Science, International Islamic University Malaysia, 2017en_US
dc.rightsCopyright International Islamic University Malaysia
dc.subject.lcshSalicylic aciden_US
dc.subject.lcshPlant hormonesen_US
dc.subject.lcshPlant regulatorsen_US
dc.subject.lcshPhytoremediationen_US
dc.subject.lcshTobaccoen_US
dc.titleEffect of salicylic acid (SA) on Nicotiana tabacum grown under lead (Pb) stressen_US
dc.typeNullen_US
dspace.entity.typePublication

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