نتایج جستجو برای: ccompetitive fluorescence
تعداد نتایج: 107638 فیلتر نتایج به سال:
A simple, rapid, selective and highly sensitive fluorimetric method for determination of two catecholamines, i.e. norepinephrine (NE) and epinephrine (EP), in serum samples was developed. The method is based on the fluorescence sensitization of terbium (Tb3+) by complexation with both catecholamines in the presence of lanthanum (La3+), as a co-cation, and in a Na...
changes in chlorophyll florescence is one of the physiological responses of plants to waterlogging stress. due to easily measured in field and its inexpensive and non-destructive characteristics, it is one of the best ways to assess different genotypes tolerance to stresses. in this experiment, trends of chlorophyll fluorescence index (fv/fm) of ‘satsuma’ mandarin (citrus unshiu) on seven roots...
determination of chlorophyll content and chlorophyll fluorescence has the potential needed to analyze the efficiency of photosynthesis in plants against environmental stresses, especially salinity, and its simplicity facilitates stress evaluation. in order to study the response of different photosynthetic characters to salinity stress at different sugar beet growth stages, two separate experime...
به منظور بررسی اثرات قارچ میکوریز آربسکولار و باکتری سودوموناس فلوروسنس بر ویژگیهای بلال، میزان کلروفیل و عملکرد گیاه ذرت در شرایط تنش رطوبتی، آزمایشی به صورت کرتهای دو بار خرد شده و در قالب طرح بلوکهای کامل تصادفی در سه تکرار اجرا شد. تیمارها عبارت از آبیاری در دو سطح: آبیاری پس از 60 و120 میلیمتر تبخیر از تشتک تبخیر کلاس A؛ ترکیب قارچ میکوریز آربسکولار و باکتریPseudomonas fluorescence در چ...
Abstract The selection of the appropriate almond cultivars (Prunus dulcis Mill.) in dry and semi-arid regions like Iran in order to produce the optimal product is the importance. In order to study tolerance to water deficit stress, One-year old plants five almond cultivars/ genotypes on the GN15, A factorial experiment was conducted with a RCD which included 3 irrigations factors, 5 genotype...
This study was investigated the gas exchange parameters and Chlorophyll fluorescence yield in Iranian oak (Quercus macranthera F & M) seedling under drought stress in Golestan Province. For this aims, 2 years old of Iranian oak exposed (Quercus macranthera F & M) seedling from Golestan province population exposed to three soil moisture regimes (control, any drought stress (95% field capaci...
Abstract Two experiments with factorial arrangements on the basis of randomized complete block design in three replications were conducted in 2007 and 2008, to evaluate chlorophyll content index (CCI), fluorescence of chlorophyll, proline content and grain yield of three soybean cultivars (Williams, Zan and L17) under a non-saline (control) and three saline (3, 6 and 9 ds/m NaCl) conditions...
in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...
.a simple spectrofluorimetric method is described for the determination of doxorubicin (dxr) based on its quenching effect on the fluorescence intensity of tb 3+ - deferasirox (dfx) complex as a fluorescent probe. the excitation and emission wavelengths were 328 and 545 nm, respectively. the effects of ph, time, order of addition of reagents, concentrations of tb 3+ and dfx and the buffer volum...
Background: The important issue in the application of Photodynamic Therapy (PDT), as one of the fundamental basis of new treatment for cancerous lesions, is optimal dosimetry. In this context, it is necessary to obtain enough information about the drug concentration within the target tissue. On the other hand, the fact that ALA itself is not a photosensitizer and causes the production of Pr...
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