Effects of intercropping with different Solanum plants on the physiological characteristics and cadmium accumulation of Solanum nigrum

2020 ◽  
pp. 1-13 ◽  
Author(s):  
Kewen Huang ◽  
Lijin Lin ◽  
Ming’an Liao ◽  
Ji Liu ◽  
Dong Liang ◽  
...  
Keyword(s):  
Cadmium Accumulation ◽  
Solanum Nigrum ◽  
Physiological Characteristics

scholarly journals Enhanced Cadmium Accumulation and Tolerance in Transgenic Hairy Roots of Solanum nigrum L. Expressing Iron-Regulated Transporter Gene IRT1

Life ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 324
Author(s):  
Peng Ye ◽  
Menghua Wang ◽  
Teng Zhang ◽  
Xiaoyu Liu ◽  
He Jiang ◽  
...  
Keyword(s):  
Hairy Roots ◽  
Cadmium Accumulation ◽  
Solanum Nigrum ◽  
Antioxidant Enzyme Activities ◽  
Transporter Gene ◽  
Cd Stress ◽  
Cd Accumulation ◽  
Transgenic Hairy Roots ◽  
Solanum Nigrum L ◽  
Iron Regulated Transporter

Solanum nigrum L., a hyperaccumulator of cadmium (Cd), is regarded as a promising candidate for phytoremediation of heavy metal pollution. In the present study, the hairy roots of Solanum nigrum L. were selected as a model plant system to study the potential application of Iron-regulated Transporter Gene (IRT1) for the efficient phytoremediation of Cd pollution. The transgenic hairy roots of Solanum nigrum L. expressing the IRT1 gene from Arabidopsis thaliana were successfully obtained via the Agrobacterium tumegaciens-mediated method. Expression of IRT1 reduced Cd stress-induced phytotoxic effects. Significantly superior root growth, increased antioxidant enzyme activities, decreased reactive oxygen species (ROS) levels, and less cell apoptosis were observed in the transgenic hairy roots of Solanum nigrum L. compared to the wild-type lines under Cd stress. Enhanced Cd accumulation was also carried out in the transgenic hairy roots compared to the control (886.8 μg/g vs. 745.0 μg/g). These results provide an important understanding of the Cd tolerance mechanism of transgenic IRT1 hairy roots of Solanum nigrum L., and are of particular importance to the development of a transgenic candidate for efficient phytoremediation process.

scholarly journals Study on cadmium accumulation characteristics of Solanum nigrum with different ploidies

2019 ◽  
Vol 136 ◽  
pp. 07012
Author(s):  
Yunmin Huan ◽  
Zhouyang Jiu ◽  
Huixuan Zhou ◽  
Haoran Zhang ◽  
Yong Huang ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Translocation Factor ◽  
Cadmium Accumulation ◽  
Solanum Nigrum ◽  
Pot Experiment ◽  
Accumulation Factor ◽  
Cadmium Content ◽  
Accumulation Characteristics ◽  
Cadmium Contaminated Soil

To study the cadmium accumulation characteristics of Solanum nigrum with different ploidies, the biomass, cadmium content and cadmium accumulation of diploid (Solanum photeinocarpum), tetraploid (Solanum photeinocarpum) and hexaploid (Solanum nigrum) were measured by a pot experiment. The results showed that the biomass of roots, stems, leaves and shoots of S. nigrum plants with different ploidy all ranked as follows: hexaploid > tetraploid > diploid. Cadmium content and cadmium accumulation in stems, leaves and shoots of hexaploid plants were significantly higher than those in tetraploid and diploid plants, and the cadmium translocation factor and translocation accumulation factor of hexaploid were the largest, too. Therefore, hexaploid S. nigrum had a highest ability to extract and transport cadmium, which can be used as an ideal plant for remediation of cadmium-contaminated soil.

scholarly journals Effects of hyperaccumulator plant straw on biomass and cadmium accumulation of lettuce

2019 ◽  
Vol 136 ◽  
pp. 07005
Author(s):  
Le Liang ◽  
Ran Zhang ◽  
Yan Zhao ◽  
Ying Zhu ◽  
Qiaoman Ao ◽  
...  
Keyword(s):  
Cadmium Accumulation ◽  
Solanum Nigrum ◽  
Cd Stress ◽  
Bidens Pilosa ◽  
Cd Uptake ◽  
Cd Accumulation ◽  
Accumulator Plant ◽  
Hyperaccumulator Plant ◽  
Straw Application ◽  
Ground Part

To study the effects of hyper-accumulator plant straw on the biomass and cadmium (Cd) accumulation of lettuce (Lactuca sativa), the pot experiments were conducted to study the effects of straw application of three hyper-accumulator plants (Solanum nigrum, Bidens pilosa and Galinsoga parviflora) on the biomass and Cd accumulation of lettuce under Cd stress. The results show that: compared with no straw application, the biomass of lettuce was increased after applying three kinds of hyper-accumulator plant straw: S. nigrum, B. pilosa and G. parviflora, Cd content in the above ground part of lettuce was increased by 4.46%, 1.20% and 0.63% respectively, compared with that of non-application, and Cd content in the root of lettuce was decreased. The application of three kinds of hyperaccumulator plant straw promoted the growth of lettuce and increased Cd uptake by lettuce of aerial part.

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