Phytotoxicity of “Tide” Detergent Powder Using Lens culinaris Seeds as a Bioassay
Xiang Cai1,2* and Sergei A Ostroumov1,2
1Faculty of Biology, Lomonosov Moscow State University, Moscow, Russian Federation
2Department of Ecology, School of Biology, Shenzhen MSU-BIT University, Shenzhen, China
*Corresponding Author: Xiang Cai, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russian Federation
December 29, 2021; Published: January 10, 2022
The indiscriminate use of synthetic laundry detergents (SLDs) triggered notorious prevalence of toxic pollution in water environment. SLDs synthesized from surfactants and other chemical compounds pose ecotoxic risk to living organisms once invading the ecosystem. The widespread presence of terrestrial vegetations in ecosystem may be subject to exposure to SLDs. It is important to test phytotoxic effect of SLDs on terrestrial plant species and form a system of phytotoxic risk assessment. The phytotoxicity of “Tide” detergent powder (TDP) was tested using Lens culinaris seeds as a bioassay. The bioassay showed that the seed germination percentage (ca. 0% - 90%) reduced sharply due to an increase in TDP concentrations (0.0%, 0.1%, 0.5% and 1.0%) within 72-h and 96-h, respectively. Meanwhile, the increasing concentrations inhibited root elongation (ca. 0.0 - 8 mm) after 72-h long exposure to TDP, and also impeded root elongation (ca. 0.0 - 17 mm) after 96-h. The phytotoxicity was assessed depended on two indices: seed germination and root elongation indices. The present study validated an effective and economical bioassay, in which the phytotoxicity ranks (slight, moderate, high and extreme) were graded.
Keywords: Phytotoxicity; Lens culinaris; “Tide” Detergent Powder; Seed Germination; Root Elongation
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