Constitutional tolerance and chlorophyll fluorescence of Boehmeria nivea L in response to the antimony (Sb) and arsenic (As) co-contamination. Issue 2 (7th February 2017)

• Record Type: Journal Article
• Authors: Mirza, Nosheen; Mubarak, Hussani; Chai, Li-Yuan; Yang, Zhi-Hui; Mahmood, Qaisar; Yong, Wang; Tang, Chong-Jian; Fahad, Shah; Nasim, Wajid
• Is Part Of: Toxicological and environmental chemistry. Volume 99:Issue 2(2017)
• Page Start: 265
• Page End: 272
• Publication Date: 2017-02-07
• Subjects: Antimony (Sb) -- arsenic (As) -- Boehmeria nivea -- phytoremediation potential -- tolerance -- chlorophyll fluorescence; Toxicology -- Periodicals; Environmental chemistry -- Periodicals; 571.95
• DOI: 10.1080/02772248.2016.1175162
• Languages: English
• ISSNs: 0277-2248

Abstract

ABSTRACT: The metal tolerance and metabolic changes in Boehmeria nivea colonized in mining areas are not well known. A hydroponic experiment was conducted to evaluate the impact of antimony (Sb)+arsenic (As) in following combinations (control (no metal), 20+0, 10+10, 40+0, 20+20, and 40+40 mg/L) on phytotoxicity, metal tolerance index (MTI), and chlorophyll fluorescence in B. nivea . This constitutes an initial investigation of metal tolerance and chlorophyll fluorescence in Sb and Sb+As contaminated B. nivea . The high Sb+As 40+40 mg/L produced significant phytotoxicity and MTI in the plant. Progressive higher Sb and Sb+As levels resulted in decreased chlorophyll fluorescence of B. nivea . Exposure to intermediate and high Sb+As levels induced damage in the photosynthesis apparatus of the plant.