The structure of nucleus and cytoplasm in hair cells during tobacco mosaic virus reproduction.
نویسندگان
چکیده
Abb. 9. Differenzspektren von Trypsin ( —) und dessen DIPDerivat ( ---------) nach Zusatz von denaturiertem Pepsin gegen ebensolche nach 3-stdg. Einwirkung von aktivem Pepsin (die peptische Hydrolyse würde wenigstens 30 Stn. in An spruch nehmen). nach Pepsineinw irkung um einen genau entsprechen den Betrag, ohne die Spaltung zu verhindern (Abb. 9 ) . Die Geschwindigkeit der F ix ierung von Pepsin an T ryptophan übersteigt die der P eptid spaltung etwa hundertfach.
منابع مشابه
The Structure of Cells during Tobacco Mosaic Virus Reproduction
The submicroscopic organization of mesophyll cells from tobacco leaves systemically infected with tobacco mosaic virus (TMV) is described. After fixation with glutaraldehyde and osmium tetroxide the arrangement of the TMV particles within the crystalline inclusions is well preserved. Only the ribonucleic acid-containing core of the virus particles is visible in the micrographs. Besides the hexa...
متن کاملReplication of Tobacco Mosaic Virus on Endoplasmic Reticulum and Role of the Cytoskeleton and Virus Movement Protein in Intracellular Distribution of Viral RNA
Little is known about the mechanisms of intracellular targeting of viral nucleic acids within infected cells. We used in situ hybridization to visualize the distribution of tobacco mosaic virus (TMV) viral RNA (vRNA) in infected tobacco protoplasts. Immunostaining of the ER lumenal binding protein (BiP) concurrent with in situ hybridization revealed that vRNA colocalized with the ER, including ...
متن کاملComparison of Nucleus and Cytoplasm Diameter of Buccal Mucosa Cells in Cigarette Smokers and Nonsmokers: A Cytomorphometric Study using Feulgen and Papanicolaou Stains
Introduction: A decrease in cell size and an increase in nuclear dimension due to changes in the amount of DNA could be an indicator of early detection of malignant changes. This study aimed to compare the nuclear and cytoplasmic diameters of buccal mucosa cells in cigarette smokers and nonsmokers in a cytomorphometric study using Feulgen and Papanicolaou stains. Material & Methods: In this cas...
متن کاملبررسی ارزش رنگ آمیزی (Phosphotungstic Acid Haematoxylin (PTAH در تشخیص افتراقی تومورهای غدد بزاقی
The differential diagnosis between pleomorphic adenoma, the most common salivary gland neoplasm, microscopically, and two other common salivary gland neoplasms, meaning adenoid cystic carcinoma and mucoepidermoid carcinoma, is difficut.The purpose of this study was to determine the differences between pleomorphic adenoma, adenoid cystic carcinoma and mucoepidermoid carcinoma regarding the stain...
متن کاملAssembly and Aggregation of Tobacco Mosaic Virus in Tomato Leaflets
Cells of tomato leaflets (Lycopersicum esculentum Mill.) were studied by phase and electron microscopy at various intervals after inoculation with a common strain of tobacco mosaic virus (TMV). Forty-eight hours after inoculation, prior to the development of assayable virus, individual TMV particles, and also particle aggregates, were observed in the ground cytoplasm of mesophyll cells. The mos...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete
دوره 17B شماره
صفحات -
تاریخ انتشار 1962