E3S Web Conf.
Volume 293, 20212021 3rd Global Conference on Ecological Environment and Civil Engineering (GCEECE 2021)
|Number of page(s)||5|
|Section||Ecological Environment Protection and Pollution Control|
|Published online||23 July 2021|
Alleviation of Cd-induced growth improvement by exogenous melatonin pre-treatment in Abutilon theophrasti Medicus
1 School of Biological and Environmental Engineering, Xi’an University, Xi’an 710065, China
2 College of Geography and Environmental science, Northwest Normal University, Lanzhou 730070, China
3 School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
4 State Key Laboratory of Grassland Agro Ecosystems/School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, China
5 College of Geography and Environmental Engineering, Engineering Center for Pollution Control and Ecological Restoration in Mining of Gansu Province, Lanzhou City University, Lanzhou 730070, China
The present work was aimed to study the effect of melatonin pre-treatments on oxidative stress modulation, cadmium (Cd) accumulation, and tolerance in Abutilon theophrasti Medicus under the hydroponic system. Application of substances that can modulate the harmful effects of Cd on plant yield and reduce its accumulation in the edible parts is of particular importance. Therefore, the Abutilon pre-treated with 0.1mM melatonin were exposed to 200μM, 400μM, 800μM Cd. Our results showed that 0.1mM melatonin led to positive effects on 200μM and 400μM Cd tolerance, including a significant increase in root activity andperoxidase (POD) activity and a significant decrease in malondialdehyde (MDA) content. Withthe help of melatonin, the enrichment factor (BCF) significantly decreased, reducing the content in the ground and roots. At least in our experiment conditions, this information appears to be useful for healthy food production.
© The Authors, published by EDP Sciences, 2021
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