ORIGINAL RESEARCH
Effects of Exogenous Selenium on Physiological Characteristics of Salix babylonica under 2,4-Dinitrophenol Stress
Guilong Fu 1,2  
,   Xiaofeng Yang 2,3  
,   Kejie Han 1,2  
,   Huicheng Xie 1,2  
 
More details
Hide details
1
Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration
2
Forestry College of Shandong Agricultural University, Taian China
3
College of Life Sciences, Beijing Normal University, Beijing, China
CORRESPONDING AUTHOR
Huicheng Xie   

1. Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration 2. Forestry College of Shandong Agricultural University, Taian China, Taian, China
Submission date: 2020-12-14
Final revision date: 2021-03-16
Acceptance date: 2021-05-15
Online publication date: 2021-10-15
Publication date: 2021-12-02
 
Pol. J. Environ. Stud. 2021;30(6):5541–5547
 
KEYWORDS
TOPICS
ABSTRACT
To explore the potential of phytoremediation 2,4-dinitrophenol (2,4-DNP) by Salix babylonica, its physiological response to 2,4-DNP, and the effect of exogenous selenium (Se) addition on its physiological response were studied in hydroponics. The results indicate that an increasing concentration of 2,4-DNP decreased the plant net photosynthetic rate (Pn), transpiration rate (Tr), chlorophyll content and increased intercellular CO2 concentration (Ci). Both concentrations of Se increased Pn and chlorophyll content and reduced Ci. At low concentrations of 2,4-DNP, Se addition reduced POD and SOD activity, whereas at high concentrations its effect was reversed. In conclusion, the non-stomatal factor was the main reason for 2,4-DNP inhibiting the photosynthesis of S. babylonica. The tolerance of S. babylonica to 2,4-DNP was strong when 2,4-DNP concentration is between 10 and 20 mg.L-1. Adding low concentration Se (≤2 μmol.L-1) can promote the photosynthesis of S. babylonica and enhance its tolerance to 2,4-DNP pollution.
eISSN:2083-5906
ISSN:1230-1485