Translocation of metal ions from soil to tobacco roots and their concentration in the plant parts.
This paper presents a study on the translocation factors (TFs) and bioconcentration factors (BCFs) of copper (Cu), manganese (Mn), zinc (Zn), cobalt (Co), chromium (Cr), cadmium (Cd), lead (Pb), iron (Fe), nickel (Ni), and arsenic (As) ions in roots, stems, and leaves of tobacco. The results revealed that during the tobacco growth, the roots are able to increase the sensitiveness of the physiological control, reducing the translocation of the metals Ni (0.38) and Pb (0.48) to the leaves. Cd and Zn presented factors TF and BCF >1 in the three tissues under analysis, which indicates the high potential for transportation and accumulation of these metals in all plant tissues. The TF values for Cr (0.65) and As (0.63) revealed low translocation of these ions to the aerial parts, indicating low mobility of ions from the roots. Therefore, tobacco can be considered an efficient accumulator of Ni, Cr, As and Pb in roots and Cd and Zn in all plant parts.
['da Silva|Cleber Pinto|CP|', 'de Almeida|Thiago E|TE|', 'Zittel|Rosimara|R|', 'de Oliveira Stremel|Tatiana R|TR|', 'Domingues|Cinthia E|CE|', 'Kordiak|Januário|J|', 'de Campos|Sandro Xavier|SX|']
D001673:Biodegradation, Environmental D002104:Cadmium D002857:Chromium D003035:Cobalt D003300:Copper D004784:Environmental Monitoring D007477:Ions D019216:Metals, Heavy D009532:Nickel D018515:Plant Leaves D018517:Plant Roots D018547:Plant Stems D012987:Soil D012989:Soil Pollutants D014026:Tobacco D015032:Zinc
Accumulation Toxic Trace elements Translocation ability