Potential of Mentha aquatica L., Eryngium caucasicum Trautv. and Froriepia subpinnata Ledeb. for phytoremediation of Cd-contaminated soil

Hasanpour, R.; Zaefarian, Faezeh; Rezvani, Mohammad; Seh-Bardan, Bahi Jalili

doi:10.1007/s40415-019-00550-1

Cited by 7 publications

(1 citation statement)

References 56 publications

(62 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results also suggested Cd and Cr retention in the roots during long-distance translocation from the roots to the rhizomes and leaves, indicating that roots serve as an effective barrier to Cd and Cr translocation [39]. High Cd and Cr levels have been reported in the roots of other plants, such as Mentha aquatica, Solanum lycopersicum Mill., Brachiaria mutica, and Leptochloa fusca [9,40,41], with only a small proportion of heavy metals being translocated to the aerial parts. High retention of heavy metals, such as Cd and Cr, in the roots could be an important tolerance strategy utilized by Chinese goldthread to protect the aboveground photosynthetic tissues [40].…”

Section: Resultsmentioning

confidence: 99%

Effects of Free Amino Acids, Metallothionein, and Chemical Forms of Heavy Metals on the Accumulation and Detoxification of Cadmium and Chromium in Chinese Goldthread (Coptis chinensis Franch.)

Huang

Niu

et al. 2022

Journal of Sensors

View full text Add to dashboard Cite

Chinese goldthread (Coptis chinensis Franch.) is an important medicinal plant worldwide. However, its clinical safety is negatively impacted by high cadmium (Cd) and chromium (Cr) levels. Understanding the accumulation pattern and detoxification mechanism of heavy metals, such as Cd and Cr, is important for regulating their transportation and reducing their accumulation in plants. Free amino acids (FAAs), metallothioneins, and chemical forms of heavy metals are closely associated with heavy metal accumulation and detoxification mechanisms. In the present study, we evaluated the uptake of Cd and Cr in Chinese goldthread and characterized the changes in FAA levels, CcMT2, a metallothionein gene, expression under Cd and Cr stress, and Cr chemical forms in various tissues of Chinese goldthread. The majority of Cd and Cr was retained in the roots; this might be the tolerance strategy utilized by Chinese goldthread to protect the aboveground photosynthetic tissues. A chemical continuous extraction method was utilized to analyze the chemical forms of Cr, and the results suggested that Cr was primarily fixed by oxalate in all tissues, and after Cr treatment, Cr tended to combine with phosphate to form an insoluble complex that reduced the toxicity and bioavailability of Cr in Chinese goldthread. The accumulation of Cd and Cr was significantly positively correlated with valine, histidine, threonine, tyrosine, and serine levels and significantly negatively correlated with glutamic acid and alanine levels. The variation in proline levels under Cd stress was different than that under Cr stress. FAAs might affect the accumulation of and resistance to Cd and Cr through various detoxification strategies, such as chelation with heavy metals ions and conversion into the required products. Furthermore, CcMT2 was isolated for the first time and found to be dominantly expressed in leaves. CcMT2 was induced under Cd and Cr stress in all plant tissues, indicating its role in the accumulation of and tolerance to Cd and Cr.

show abstract