Effect of salicylic acid pretreatment on biomass production and photosynthetic pigments content in Chenopodium murale under zinc oxide nanoparticles treatment

سال انتشار: 1399
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 135

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شناسه ملی سند علمی:

BIOCONF21_1066

تاریخ نمایه سازی: 7 شهریور 1400

چکیده مقاله:

The aim of this study was to investigate the effect of salicylic acid (SA) pretreatment on the biomass production and growth in Chenopodium murale L. exposed to ZnO nanoparticles (ZnO NPs). The ZnO NPs due to the unique properties are widely used in industrial, commercial, and medical products, as well as in drilling activities related to the oil industry. The increased use of metal nanoparticles can lead to the entry of these particles into the food chain and ultimately affect the health of living organisms. The SA is a plant growth regulator that controls several plant physiological processes and tolerance to biotic and abiotic stresses. The plant seeds were collected from the area around Ahvaz oil field, transferred to the laboratory, and cultivated under controlled conditions. Then, under hydroponic culture, the effect of different SA pretreatments including ۰, ۲۵, ۷۵, and ۱۵۰ μM was evaluated in the plants treated with ۵۰ mg L-۱ of ZnO NPs. The results showed that the SA pretreatments, especially ۱۵۰ μM, could increase the length, fresh weight, dry weight, and chlorophyll content. In addition, the SA pretreatments reduced carotenoids content in the plants exposed to ۵۰ mg L-۱ of ZnO NPs. Based on these results, it is suggested that the use of exogenous SA at appropriate concentration can greatly increase the plant growth and yield by reducing the ZnO NPs toxicity. Therefore, its use in the soils contaminated with ZnO NPs can be recommended for the phytoremediation purpose to increase plant yield.

کلیدواژه ها:

نویسندگان

Saadieh Taherbahrani

Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran,

Parzhak Zoufan

Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran,

Behrooz Zargar

Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.