نوع مقاله : مقاله کامل علمی - پژوهشی
نویسندگان
1 گروه شیلات، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران
2 دانشیار، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران
3 گروه زیست شناسی، دانشگاه ساسکاچوان، کانادا
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Due to the increasing progress of nanotechnology in all fields and the global increase in the use of nanoparticles over the past decades, their entry into the environment has increased. In this regard, entering these materials into the environment will potentially affect living organisms, including fish. Therefore, this study aims to investigate the tissue pathology caused by green nanoparticles, chemicals, and the heavy metal zinc on the gill tissue of common carp. A total of 420 common carp fry with an average weight of 3/4±30 g were treated for 21 days with concentrations of 1.5 and 2.5 mg/L of chemically synthesized zinc oxide nanoparticles, green synthesized zinc oxide nanoparticles, and heavy metal zinc, divided into 7 experimental groups including the control treatment with three replications.Histological changes of hyperplasia and hypertrophy, lamellar adhesion, shortening of secondary lamellae, necrosis, aneurysm, curvature of secondary lamellae, and curvature of secondary blades were observed in common carp.This study showed that chemically synthesized zinc oxide nanoparticles and heavy metal zinc at concentrations of 1.5 and 2.5 mg/L can affect the gill tissue of common carp. However, this damage was less when exposed to green synthesized zinc oxide nanoparticles at concentrations of 1.5 and 2.5 mg/L. This indicates the necessity of synthesizing nanoparticles through green synthesis.
کلیدواژهها [English]
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