49
Tecnología y Ciencias del Agua
, vol. VIII, núm. 2, marzo-abril de 2017, pp. 43-50
Luo
et al.
,
Phytoextraction potential of wetland plants for Copper in Water Bodies
ISSN 2007-2422
•
of Cu in the plant saps. It is difficult to transport
Cu
2+
in plant roots due to retention, passivation,
or precipitation. Cu
2+
accumulates in the root
surface mainly in the form of microcrystals on
cell walls. Plants accumulated them in the roots,
which prevents harmful ions from inhibiting
photosynthesis. In this study, Cu
2+
accumula-
tion quantities in the underground parts of the
two wetland plants were significantly greater
than those in the aboveground parts (Ren, Tao,
& Yang, 2009).
Conclusions
The two wetland plant species showed strong
Cu
2+
enrichment abilities at different Cu
2+
con-
centration conditions, both in under-ground
microcrystals on cell walls. ons from and above-
ground parts. The contents of Cu
2+
in calamus
and reed were significantly different at the
same Cu
2+
concentration. Among same type of
wetland plants, while below 200 mg/l, Cu
2+
ac-
cumulation increased as the Cu
2+
concentration
in the solutions increased.
Because they have the ability to effectively-
absorb and enrich copper, both Acorus calamus
and
Phragmites australis
can be used as selective
species for phytoremediation of contaminated
water bodies with heavy metal. The
Phragmites
australis
has better tolerance to heavy metals
Cu
2+
, and compared to other plants, the
Acorus
calamus
has stronger absorption and accumula-
tion Cu
2+
abilities (table 5). Overall,
Acorus cala-
mus
is a better heavy metal contaminated water
remediation plant than the
Phragmites australis
.
Acknowledgements
The research was supported by the Projects of Sichuan
Province Science and Technology Support Program
(2014GZ0132) and the Projects of the Education Department
of Sichuan Province (16ZB0252).
References
Ameh, E. G., & Akpah, F. A. (2011). Heavy metal pollution
indexing and multivariate statistical evaluation of
hydrogeochemistry of River PovPov in Itakpe Iron-Ore
mining area, Kogi State, Nigeria.
Advances in Applied
Science Research
,
2
(1), 33-46.
Bissenbaev, A. K., Ishchenko, A. A., Taipakova, S. M., &
Saparbaev, M. K. (2011). Presence of base excision repair
enzymes in the wheat aleurone and their activation in
Table 5. Possibilities accumulation ability of several plants for Cu
2+
(Zhang, 2014).
Family
Plant
Possibilities of Cu
2+
accumulation
Convolvulaceae
Ipomoea alpina
12 300 mg/kg
Scrophulariaceae
Lindernia perennis
9 322 mg/kg
Labiatae
Gutenbergia katangense
8 356 mg/kg
Cyperaceae
Bulbostylis mucronata
7 783 mg/kg
Amaranthaceae
Pandiaka metallorum
6 260 mg/kg
Leguminosae
Vigna dolomitica
3 000 mg/kg
Asteraceae
Anisopappus davyi
2 889 mg/kg
Pottiaceae
Didymodon constricta
1 962 mg/kg
(Peng & Zhang, 2007)
Table 4. Correlation of Cu
2+
accumulation content in copper-contaminated water to wetland plants.
Plant
Plant part
Correlation Function
R
2
Acorus calamus
Aboveground
4.4082 × 10-
16
x
22.1631
x
-0.18477
0.97386
Underground
2.7194 × 10
-16
x
25.4253
x
-0.20935
0.93498
Phragmites australis
Aboveground
125.1777 + 7.04417
x
0.55753
0.85224
Underground
463.1011 – 370.54424
x
0.88195
0.45869
