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Phytotechnology with Biomass Production
TABLE 7.1
Trace Element Behavior in M. × giganteus Tissues during Growth in Artificially
Contaminated by Pb Soil
Trace
Element
Without B. altitudinis KP-14
With B. altitudinis KP-14
Pb
Mainly accumulated in roots.
Zn
Mainly accumulated in roots;
the share accumulated in
aboveground biomass increased
from 13% to 20%.
Cu
Mainly accumulated in roots;
Accumulation in stems increased
with increasing Pb concentrations
in soil.
Mn
Mainly accumulated in the
aboveground biomass;
the share in aboveground biomass
(leaves in stems) was varied from
66% to 86%.
Sr
It evenly distributed throughout the
plant;
highest accumulation was in stems;
the share in aboveground biomass
varied from 50% to 69%.
Mainly accumulated in roots;
translocation to aboveground biomass
decreased.
The share accumulated in aboveground
biomass increased from 16% to 22%;
the share accumulated in roots decreased by
25.4% while the lead content in roots
increased.
The share accumulated in stems remained
almost the same (2%, 8%, and 4%) with
increasing Pb concentration in soil.
accumulation in roots increased by 58%–295%.
total uptake increased as well (by 60%–238%).
The total uptake increased, with increasing Pb
concentration in soil, the effect decreased
from 62% to 26%;
accumulation in aboveground biomass
decreased from 64% to 52%.
It evenly distributed throughout the plant;
highest accumulation was in the roots;
accumulation in aboveground biomass
(leaves and stems) reduced from 46% to 27%.
Source: Modified from Pidlisnyuk et al. (2020).
occurred could still be characterized as phytostabilization. The M. × giganteus root biomass increased with increasing Pb concentrations to tackle the
Pb toxicity in the soil. With regard to the places of accumulation, the metals
were divided into three groups: Pb, Zn, and Cu were predominantly accumulated in the roots; the Sr distribution was almost equal within the whole
plant; and Mn predominantly accumulated in the leaves and stems.
7.3 Influence of Rhizobacteria Isolated from
Miscanthus Rhizosphere to Phytoremediation
of Trace Elements Contaminated Soil
The rhizosphere plays a significant role in phytoremediation of soil contaminated with trace elements (Jing et al., 2007). PGPRs are of interest among
rhizosphere microorganisms (Shrivastava, 2017), because they facilitate the