نتایج جستجو برای: 1 and 2 mgl concentrations
تعداد نتایج: 17514553 فیلتر نتایج به سال:
Baia Mare area represents one of the most important mining areas Romania. Although activities carried out here are currently inactive (since 2012), they generated residual pollution that negatively influences all environmental factors. The aim study is to evaluation quality surface water from vicinity city Mare, samples, collected in two distinct years (2021 and 2022), were analyzed determine c...
بذرالبنج یا بنگدانه با نام علمیhyoscyamus. l از تیره سیب زمینی (solanaceae) گیاهی دارویی و با ارزش است که در نقاط مختلف ایران گسترش دارد و بذرالبنج کردی یکی از گونه های بومی ایران، که پراکنش آن در غرب کشور است. ترکیب دارویی این سرده آلکالوئیدهای تروپانی هیوسیامین و اسکوپولامین است. ارزش دارویی اسکوپولامین بیشتر از هیوسیامین است. در پژوهش حاضر بذرالبنج کردی از چند دیدگاه مورد بررسی قرار گرفت. در...
Background & Aim: Effects of ultra violet spectrum on plants due to their obligatory requirement for sunlight for survival are unavoidable. Direct effects of UV on plant growth and development are generally negative and usually they use many different defense mechanisms to acclimate and protect themselves. Material & Methods: The present research for the first time was conducted to investigate...
None of our investigations have identified stress in response to the HSP70 and HO-1 proteins metals under study, which aimed understand genetic basis metal tolerance Arundo donax. Thus, present work investigate levels expression two important stress-related proteins, HSP70, A. donax after exposure various metals. The plants were collected from uncontaminated sites Abbottabad, Pakistan. Their rh...
Yolk-sac fry of Goldfish (Carassius auratus gibelio) were exposed to various concentrations of Al and pH for 3, 7 and 10 days. In this study number of dead fish, total length of larvae, yolk sac length, swimming activity, the number of gill cover movements and the number of heart beat was measured. The lowest and highest number of gill cover movements belong to the waters containing 50 mg L-1 o...
Many factors may influence the efficiency of somatic embryogenesis. This capability may be differ with regard to media compositions, genotype, tissue, organ ontology and the stage of differentiation. The effects of five salicylic acid concentrations (0, 25, 50, 75 and 100 mM) on different stages of carrot somatic embryogenesis were studied using petiole and root secondary phloem explants as sta...
rodlet cells are frequently found in teleost fishes and although their role in organisms is not completely understood. the occurrence of these cells are related to stress and may undergo changes in contaminated environments, thereby allowing their use as biomarkers. this hypothesis is tested in the present study. thirty specimens of oreochromis niloticus were divided into three groups, two grou...
Malathion (S-(1, 2-dicarboethoxyethyl) O, O-dimethyl phosphorodithioate) is one of the organophosphate pesticides comprehensively used in agriculture fields throughout the world. In spite of widely used, little information are available about DNA damage in aquatic organisms. Therefore, the present study carried out to investigation of DNA damage induced by malathion in Cyprinus carpio (Pisces: ...
گیاه digitalis nervosa staud & hochstمتعلق به خانواده scrophulariaceae می باشد. گیاهان این جنس از گیاهان مهم دارویی می باشند که منبع گلیکوزید های قلبی مهمی چون دیگوکسین، دیژیتوکسین و انواع لاناتوزید ها می باشد. گلیکوزید های قلبی در درمان بسیاری از بیماری های قلبی به ویژه نارسایی احتقانی قلب کاربرد دارند. تکنیک های مختلف کشت بافت در این تحقیق مورد مطالعه قرار گرفت. به منظور بررسی کال-زایی در ریز...
background & aim: effects of ultra violet spectrum on plants due to their obligatory requirement for sunlight for survival are unavoidable. direct effects of uv on plant growth and development are generally negative and usually they use many different defense mechanisms to acclimate and protect themselves. material & methods: the present research for the first time was conducted to inv...
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