Biomaterial Database

[Immunofluorescence and electron microscopy study of bovine reovirus multiplication in cell culture]. 1984

A Tunkara, and M Ignatova, and M Vinarova, and N Runevski

The appearance and development of reovirus antigens was followed up in Vero cells. The earliest immunofluorescence finding was established at the 6th hr, consisting in the appearance of small shining granules in and around the nuclear cytoplasm. At the 24th hr in 15 per cent of the cells there was a positive immunofluorescence finding in the form of one or several objects grouped closely to the nucleus. At the 36th hr fluorescence was seen in about 50 per cent of the cells to surround the nucleus and fill the whole cytoplasm or appearing as a limited and demarkated one. By form the fluorescent objects resembled viral inclusions. The immunofluorescence finding reached its peak at the 48th hr. In cells infected with Reo 2 the appearance and cumulation of the virus antigen ran its course in the same sequence as that seen with Reo 1, however, it was manifested with higher intensity. The electron-microscopic study of Reo 1-infected cells revealed greater diversity in the stages of infection as early as the 24th hr--from the appearance of sporadic virions up to the emergence of large virus crystals the virions in which assumed square or hexagonal arrangement. There was also linear arrangement of the virions by the length of the tubular cell structures. Cells infected with Reo 1 and Reo 2 presented likewise zones with large masses of virus matrix prior to the appearance in them of new virions. There was also particular cumulation of the cell ribosomes along with the matrix formation. It is believed that the appearance of these formations is associated with the virus morphogenesis.

UI	MeSH Term	Description	Entries
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D012087	Reoviridae	A family of unenveloped RNA viruses with cubic symmetry. The twelve genera include ORTHOREOVIRUS; ORBIVIRUS; COLTIVIRUS; ROTAVIRUS; Aquareovirus, Cypovirus, Phytoreovirus, Fijivirus, Seadornavirus, Idnoreovirus, Mycoreovirus, and Oryzavirus.	Aquareovirus,Cypovirus,Cytoplasmic Polyhedrosis Viruses,Fijivirus,Idnoreovirus,Mycoreovirus,Oryzavirus,Phytoreovirus,Reoviruses, Aquatic,Respiratory Enteric Orphan Viruses,Seadornavirus,Aquareoviruses,Aquatic Reovirus,Aquatic Reoviruses,Cypoviruses,Cytoplasmic Polyhedrosis Virus,Fijiviruses,Idnoreoviruses,Mycoreoviruses,Oryzaviruses,Phytoreoviruses,Polyhedrosis Virus, Cytoplasmic,Polyhedrosis Viruses, Cytoplasmic,Reovirus, Aquatic,Seadornaviruses
D012088	Reoviridae Infections	Infections produced by reoviruses, general or unspecified.	Reovirus Infections,Infections, Reoviridae,Infection, Reoviridae,Infection, Reovirus,Infections, Reovirus,Reoviridae Infection,Reovirus Infection
D012089	Mammalian orthoreovirus 3	A serotype of ORTHOREOVIRUS, MAMMALIAN causing serious pathology in laboratory rodents, characterized by diarrhea, oily coat, jaundice, and multiple organ involvement.	Reovirus 3,Mammalian Reovirus 3,Reovirus Type 3,Reovirus 3, Mammalian
D002417	Cattle	Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.	Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002460	Cell Line	Established cell cultures that have the potential to propagate indefinitely.	Cell Lines,Line, Cell,Lines, Cell
D005455	Fluorescent Antibody Technique	Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.	Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000956	Antigens, Viral	Substances elaborated by viruses that have antigenic activity.	Viral Antigen,Viral Antigens,Antigen, Viral
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor