Axonopus compressus (Sw.) Beauv.: A potential biomonitor for molybdenum in soil pollution. Issue 14 (6th December 2018)

• Record Type: Journal Article
• Authors: Tow, Shi Wan Tiffany; Eng, Zhi Xian; Wong, Seok Peng; Ge, Liya; Tan, Swee Ngin; Yong, Jean Wan Hong
• Is Part Of: International journal of phytoremediation. Volume 20:Issue 14(2018)
• Page Start: 1363
• Page End: 1368
• Publication Date: 2018-12-06
• Subjects: Accumulation -- biomonitor -- cow grass -- molybdenum -- phytoremediation -- Poaceae; Phytoremediation -- Periodicals; 628.5
• DOI: 10.1080/15226514.2016.1207599
• Languages: English
• ISSNs: 1522-6514

Abstract

Abstract: Phytoremediation is an emerging technology that utilizes plants to remediate contaminated environments. In this study, Axonopus compressus (Sw.) Beauv, a fast-growing and hardy groundcover with wide geographical distribution, was exposed to soil Mo treatments ranging from 100 to 1000 mg/kg under tropical greenhouse conditions for five weeks. Generally, Mo accumulation increased as the concentration of Mo in the soil increased. The species was found to accumulate about 4000 mg/kg of Mo without exhibiting severe physiological stress at 600 mg/kg of soil Mo. Maximum accumulation of 6000 mg/kg Mo was observed at the 1000 mg/kg soil Mo treatment, though with severe necrosis and eventual plant mortality. The physiological observations, Mo accumulation behavior, and a bioconcentration factor of about 1 indicated that A. compressus could be a potential biomonitor of Mo.