منابع مشابه
Microbodies from spirogyra: organelles of a filamentous alga similar to leaf peroxisomes.
Organelles from Spirogyra cells were separated on a linear sucrose gradient. After centrifugation, most of the protein was found in the top fraction. Two minor protein peaks at density (g/cm(3)) 1.17 and 1.21 were due to chloroplast particles and mitochondria, respectively. Although there was an extremely low concentration of protein at density 1.25 g/cm(3), a major part of the activity of glyc...
متن کاملNew Observations on Microbodies
The liver of male rats has been studied after CPIB stimulation by using the peroxidase reaction for localizing catalase in hepatic cells. CPIB administration leads to an increase in the number of microbodies, and it is suggested that one mechanism by which microbody proliferation occurs is a process of fragmentation or budding from preexisting microbodies. Reaction product was observed not only...
متن کاملMicrobodies: peroxisomes and glyoxysomes
Microbodies were first reported at the ultrastructural level in the proximal convoluted tubule ofmouse kidney by Rhodin in 1954 (1) and in hepatic parenchymal cells by Rouiller and Bernhard in 1956 (2) at about the time The Journal of Cell Biology was established . They were reported in plants by Porter and Caulfield in 1958 (3) and by Mollenhauer et al. in 1966 (4) . Microbodies are now recogn...
متن کاملMicrobodies of Morris hepatomas.
SUMMARY The structure of microbodies, when present, and the activities of three microbody enzymes (catalase, urate oxidase, and D-amino acid oxidase) were studied in 35 transplantable hepatomas. Microbodies are absent in hepatomas 3683, 7794A, and BRL-4-C-3. The number, size, and often the internal structures of microbodies in the other hepatomas generally reflect the growth rates and, to a cer...
متن کاملSome observations on the nucleolus in Spirogyra.
Several species of Spirogyra have been collected and fixed for electron microscopy in either 2 % osmium tetroxide or 5 % glutaraldehyde. Mitotic cells were selected with the light microscope from filaments of Spirogyra embedded in Epon. Evidence is given for an interphase cycle in the nucleolus of Spirogyra. A clear association between nucleolar material and chromosomes occurs at mitosis. The b...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1976
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.58.5.693