Al-Huqail Arwa Abdulkreem, Eissa Mamdouh A, Ghoneim Adel M, Alsalmi Reem A, Al Thagafi Zahrah Mohammed, Abeed Amany H A, Tammam Suzan A
Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
Department of Soils and Water, Faculty of Agriculture, Assiut University, Assiut, Egypt.
Int J Phytoremediation. 2023;25(12):1558-1566. doi: 10.1080/15226514.2023.2175779. Epub 2023 Feb 5.
Quail bush [ (Torr.) S. Wats] plants were used in removing 2, 4-dinitrophenol (DNP) from wastewater in a hydroponic experiment. The hydroponic system contained three doses of DNP, 0, 10, and 20 mg L. Quail bush plants were sprayed with 0.1 mM salicylic acid (SA) to study its role in resisting DNP toxicity. DNP significantly ( < 0.05) reduced plant growth. Exposure of plants to 20 mg L of DNP reduced the total chlorophyl and relative water content by 39 and 24%, respectively. SA improved the antioxidant defense in terms of ascorbate peroxidase (APX) and polyphenol oxidase (PPO) activities. SA alleviated DNP toxicity by enhancing the production of osmoprotectants, proline, phenols, and carbohydrates. SA enhanced the removal efficiency of DNP and the highest removal efficiency (96%) was recorded in the plants sprayed with SA and grown on 10 mg L of DNP. is a halophytic plant that has good physiological characteristics to resist 2, 4-dinitrophenol toxicity in wastewaters and is qualified to purify water from these harmful compounds. Exogenous application of 0.1 mM SA increased the defense system in against 2, 4-dinitrophenol toxicity and enhanced the removal efficiency.
在一项水培实验中，使用鹌鹑灌木[（托里）S. 瓦茨]植物从废水中去除2,4-二硝基苯酚（DNP）。水培系统包含三种剂量的DNP，即0、10和20毫克/升。用0.1毫摩尔/升水杨酸（SA）喷洒鹌鹑灌木植物，以研究其在抵抗DNP毒性中的作用。DNP显著（P<0.05）抑制了植物生长。将植物暴露于20毫克/升的DNP中，总叶绿素和相对含水量分别降低了39%和24%。SA在抗坏血酸过氧化物酶（APX）和多酚氧化酶（PPO）活性方面改善了抗氧化防御。SA通过提高渗透保护剂、脯氨酸、酚类和碳水化合物的产量来减轻DNP毒性。SA提高了DNP的去除效率，在喷洒SA并生长于10毫克/升DNP的植物中记录到最高去除效率（96%）。鹌鹑灌木是一种盐生植物，具有良好的生理特性以抵抗废水中2,4-二硝基苯酚的毒性，有资格从这些有害化合物中净化水质。外源施用0.1毫摩尔/升SA增强了鹌鹑灌木对2,4-二硝基苯酚毒性的防御系统并提高了去除效率。
