Biochemical and morphological characterization of mycobacteriophage R1

synthesis and characterization of some macrocyclic schiff bases

ماکروسیکلهای شیف باز از اهمیت زیادی در شیمی آلی و دارویی برخوردار می باشند. این ماکروسیکلها با دارابودن گروه های مناسب در مکانهای مناسب می توانند فلزاتی مثل مس، نیکل و ... را در حفره های خود به دام انداخته، کمپلکسهای پایدار تولید نمایند. در این پایان نامه ابتدا یک دی آلدئید آروماتیک از گلیسیرین تهیه می شود و در مرحله بعدی واکنش با دی آمینهای آروماتیک و یا آلیفاتیک در رقتهای بسیار زیاد منجر به ت...

Morphological and Biochemical Characterization of Goldfish Erythrophores and Their Pterinosomes

The fine structure of integumental erythrophores and the intracellular location of pteridine and carotenoid pigments in adult goldfish, Carassius auratus, were studied by means of cytochemistry, paper and thin-layer chromatography, ionophoresis, density-gradient centrifugal fractionation, and electron microscopy. The ultrastructure of erythrophores is characterized by large numbers of somewhat ...

Morphological, Biochemical and Physiological Characterization of Marine Actinomycete Isolates

Isolation of pig thyroid lysosomes. Biochemical and morphological characterization.

Open thyroid follicles were prepared by mechanical disruption of pig thyroid fragments through a metal sieve. This procedure allowed preparation of thyroid-cell material depleted of colloid thyroglobulin. Open thyroid follicles were used to prepared a crude particulate fraction, which contained lysosomes, mitochondria and endoplasmic reticulum. These organelles were subfractionated by isopycnic...

Achromobacter species (CDC group Vd): morphological and biochemical characterization.

Twenty-three isolates of Achromobacter species (CDC group Vd) were examined morphologically and biochemically. Gram stains revealed gram-variable bacilli frequently curved or hooked at one pole and often coryneform in shape and arrangement. Electron microscopy revealed the presence of extracellular material in polar accumulations and demonstrated the polar flagella arrangement seen by light mic...