Surfactant and temperature as forcing functions on the growth of Egeria densa and Chara sp.: a modeling approach

Author(s)

Wanderley, Emmanuelle Leite ^[1] ; Bianchini, Jr., Irineu ^{[1, 2]} ; da Cunha-Santino, Marcela Bianchessida ^{[1, 2]}

Affiliation

^[1] Univ Fed Sao Carlos, Programa Posgrad Ecol & Recursos Nat, Rodovia Washington Luiz, 235 Km SP 310, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Fed Sao Carlos, Dept Hidrobiol, Lab Bioensaios & Modelagem Matemat, Rodovia Washington Luiz, 235 Km SP 310, BR-13565905 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: Environmental Science and Pollution Research; v. 28, n. 20, p. 26145-26153, MAY 2021.
• Web of Science Citations: 0

Abstract

The wide use of detergents combined with rising water temperature is currently issuing of environmental concern. To evaluate the effect of sodium dodecyl sulfate (SDS) and temperature on macrophyte and talophyte growth, bioassays were conducted with distinct SDS concentrations (0.5 and 8.0 mg L-1) and temperatures (25 and 27 degrees C). The length of the Egeria densa and Chara sp. and the number and lengths of shoots were measured. Kinetic models were used to verify the temperature and SDS concentrations, as driving factors in the growth. The 2 degrees C increase in thermal condition interfered positively in both elongation and shoot development in the E. densa growth. For Chara sp., this tendency was not observed for the relative contribution of the shoots, but the number was higher at 25 degrees C. The higher concentrations of SDS (8.0 mg L-1) reduced the shoots' number and the relative contribution for Chara sp. and E. densa; meanwhile, the decrease in the growth coefficient was observed only for E. densa at 25 degrees C. In the Chara sp. development, the SDS addition interfered negatively in the growth coefficient. The predicted response of growth models will bring comprehensive knowledge of macrophytes and talophyte metabolism, and the interaction between plant species and forcing functions in modeling approaches will assist in finding the key processes driving plant growth under specific stressors. (AU)

• FAPESP's process: 18/00348-0 - Mathematical modeling of Ricciocarpus natans growth in different concentrations of Mn and Cd: phytoremediation potential and physiological and biochemical indicators
• Grantee: Marcela Bianchessi da Cunha Santino
• Support Opportunities: Regular Research Grants