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Lead was applied as a solution of Pb nitrate at concentrations of 0\u2009\u03bcM, 10\u2009\u03bcM, 250\u2009\u03bcM, and 500\u2009\u03bcM. After 4 wk of Pb treatment, tissue biomass and photosynthetic parameters were measured and elemental analysis was performed. The results showed decreases in growth and photosynthetic parameters with increases in Pb concentration compared with the control. The least reduction in the recorded physiological parameters was noted in K35, whereas the greatest reduction was observed in N3, which is an obvious indication of genotypic differences. Activities of peroxidase, catalase, and malondialdehyde increased significantly with increases in Pb concentration, with genotypes K35 and N3 showing the least and the greatest reduction, respectively. The results demonstrate the phototoxic nature of Pb on plants, and it can be concluded that in Pb-prone areas genotypes K35 and B1 can be used for cultivation because they can grow efficiently in the presence of high Pb concentrations while restricting Pb uptake in the aboveground parts, as seen by the higher Pb tolerance index. Environ Toxicol Chem 2017;36:175\u2013181. \u00a9 2016 SETAC<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/etc.3522","type":"journal-article","created":{"date-parts":[[2016,6,10]],"date-time":"2016-06-10T06:41:10Z","timestamp":1465540870000},"page":"175-181","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Elucidating the physiological and biochemical responses of different tobacco (\n                    <i>Nicotiana tabacum<\/i>\n                    ) genotypes to lead toxicity"],"prefix":"10.1093","volume":"36","author":[{"given":"Antony","family":"Maodzeka","sequence":"first","affiliation":[{"name":"Department of Agronomy, College of Agriculture and BiotechnologyZhejiang University Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nazim","family":"Hussain","sequence":"additional","affiliation":[{"name":"Department of Agronomy, College of Agriculture and BiotechnologyZhejiang University Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liquan","family":"Wei","sequence":"additional","affiliation":[{"name":"Department of Agronomy, College of Agriculture and BiotechnologyZhejiang University Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerald","family":"Zvobgo","sequence":"additional","affiliation":[{"name":"Department of Agronomy, College of Agriculture and BiotechnologyZhejiang University Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James Mutemachani","family":"Mapodzeke","sequence":"additional","affiliation":[{"name":"Department of Agronomy, College of Agriculture and BiotechnologyZhejiang University Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muhammad Faheem","family":"Adil","sequence":"additional","affiliation":[{"name":"Department of Agronomy, College of Agriculture and BiotechnologyZhejiang University Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Salma","family":"Jabeen","sequence":"additional","affiliation":[{"name":"Department of Development StudiesComsats Institute of Information Technology Abbottabad 22060 Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Wang","sequence":"additional","affiliation":[{"name":"Guizhou Provincial Tobacco CompanyQianxinan Branch People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lixi","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Agronomy, College of Agriculture and BiotechnologyZhejiang University Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Imran 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