Visualization and quantification of Cadmium accumulation, chelation and antioxidation during the process of vacuolar compartmentalization in the hyperaccumulator plant Solanum nigrum L

Plant Science ◽  
2021 ◽  
pp. 110961
Author(s):  
Yue Teng ◽  
An Yu ◽  
Yi-Miao Tang ◽  
Zi-Yang Jiang ◽  
Wen-Jie Guan ◽  
...  
Life ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 324
Author(s):  
Peng Ye ◽  
Menghua Wang ◽  
Teng Zhang ◽  
Xiaoyu Liu ◽  
He Jiang ◽  
...  

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.


2019 ◽  
Vol 136 ◽  
pp. 07005
Author(s):  
Le Liang ◽  
Ran Zhang ◽  
Yan Zhao ◽  
Ying Zhu ◽  
Qiaoman Ao ◽  
...  

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.


2012 ◽  
Vol 62 ◽  
pp. 24-30 ◽  
Author(s):  
Liang Chen ◽  
Shenglian Luo ◽  
Jueliang Chen ◽  
Yong Wan ◽  
Chengbin Liu ◽  
...  

2014 ◽  
Vol 1 (2) ◽  
pp. 20-23
Author(s):  
O. Ivashchenko ◽  
O. Ivashchenko

Aim. Studying of black nightshade young plants’ response to the induced mechanical stresses. Methods. Researches conducted in small plot fi eld experiments. Results. Change of sensitivity level of Solanum nigrum L. plants depending on phases of their development at the moment of damage of elevated parts has been proven. Owing to loss of the surface capable to photosynthesis, there is an essential decrease in volumes of photosynthesis at plants of weed survived and their possibilities of ontogeny passage. The deep induced dis- stresses reduce biological effi ciency of plants, their ability to accumulate weight and to form seeds and even lead them to death. Conclusions. The defi ned principles of response of weed plants to the induced mechanical dis-stresses are can be used for working out and ecological receptions of crops protection from weeds.


2021 ◽  
Vol 1031 (1) ◽  
pp. 012091
Author(s):  
V T Popova ◽  
M A Stoyanova ◽  
T A Ivanova ◽  
A S Stoyanova ◽  
I Z Dimitrova-Dyulgerova

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