Fine structure of the nucleolar organizer of salivary gland chromosome of chironomids
Electron microscopic studies of the salivary gland chromosomes of C. plumosus and C. cingulatus have shown that the chromosome region associated with the nucleolus proper is characterized by coils of 100 Å chromosome fibers, pars amorpha, and nucleolonema. These three components form a disklike stru...
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| Veröffentlicht in: | Journal of ultrastructure research 1964-10, Vol.11 (3), p.282-291 |
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| container_title | Journal of ultrastructure research |
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| creator | Kalnins, V.I. Stich, H.F. Bencosme, S.A. |
| description | Electron microscopic studies of the salivary gland chromosomes of
C. plumosus and
C. cingulatus have shown that the chromosome region associated with the nucleolus proper is characterized by coils of 100 Å chromosome fibers, pars amorpha, and nucleolonema. These three components form a disklike structure extending through the chromosome. Coils of 100 Å chromosome fibers also extend into the nucleolus proper. The intrachromosomal pars amorpha and nucleolonema resemble those of the nucleolus proper. It is suggested that only the coils of 100 Å chromosome fibers represent the nucleolar organizer. |
| doi_str_mv | 10.1016/S0022-5320(64)90033-4 |
| format | Article |
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C. plumosus and
C. cingulatus have shown that the chromosome region associated with the nucleolus proper is characterized by coils of 100 Å chromosome fibers, pars amorpha, and nucleolonema. These three components form a disklike structure extending through the chromosome. Coils of 100 Å chromosome fibers also extend into the nucleolus proper. The intrachromosomal pars amorpha and nucleolonema resemble those of the nucleolus proper. It is suggested that only the coils of 100 Å chromosome fibers represent the nucleolar organizer.</description><identifier>ISSN: 0022-5320</identifier><identifier>EISSN: 1878-2345</identifier><identifier>DOI: 10.1016/S0022-5320(64)90033-4</identifier><identifier>PMID: 14230091</identifier><language>eng</language><publisher>United States: Elsevier B.V</publisher><subject>Animals ; Cell Nucleus ; Chromosomes ; Diptera ; Electrons ; Microscopy ; Microscopy, Electron ; Nucleolus Organizer Region ; Old Medline ; Salivary Glands</subject><ispartof>Journal of ultrastructure research, 1964-10, Vol.11 (3), p.282-291</ispartof><rights>1964 Academic Press Inc.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-20d58a9206e50e1ef55647a644e95b5c93339b2f103ee68e21b9b886f6125acd3</citedby><cites>FETCH-LOGICAL-c363t-20d58a9206e50e1ef55647a644e95b5c93339b2f103ee68e21b9b886f6125acd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/14230091$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kalnins, V.I.</creatorcontrib><creatorcontrib>Stich, H.F.</creatorcontrib><creatorcontrib>Bencosme, S.A.</creatorcontrib><title>Fine structure of the nucleolar organizer of salivary gland chromosome of chironomids</title><title>Journal of ultrastructure research</title><addtitle>J Ultrastruct Res</addtitle><description>Electron microscopic studies of the salivary gland chromosomes of
C. plumosus and
C. cingulatus have shown that the chromosome region associated with the nucleolus proper is characterized by coils of 100 Å chromosome fibers, pars amorpha, and nucleolonema. These three components form a disklike structure extending through the chromosome. Coils of 100 Å chromosome fibers also extend into the nucleolus proper. The intrachromosomal pars amorpha and nucleolonema resemble those of the nucleolus proper. It is suggested that only the coils of 100 Å chromosome fibers represent the nucleolar organizer.</description><subject>Animals</subject><subject>Cell Nucleus</subject><subject>Chromosomes</subject><subject>Diptera</subject><subject>Electrons</subject><subject>Microscopy</subject><subject>Microscopy, Electron</subject><subject>Nucleolus Organizer Region</subject><subject>Old Medline</subject><subject>Salivary Glands</subject><issn>0022-5320</issn><issn>1878-2345</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1964</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMlOwzAURS0EomX4BFBWCBYBz3VWCFVMUiUWwNpynJfWKImLnVSCr8cdBEtWb-Fzfd87CJ0RfE0wkTevGFOaC0bxpeRXBcaM5XwPjYmaqJwyLvbR-BcZoaMYPxJDiOKHaEQ4ZRgXZIzeH1wHWezDYPshQObrrF9A1g22Ad-YkPkwN537hrB-iqZxKxO-snljuiqzi-BbH327ydmFC77zraviCTqoTRPhdDePU8_92_Qpn708Pk_vZrllkvU5xZVQpqBYgsBAoBZC8omRnEMhSmELxlhR0ppgBiAVUFIWpVKyloQKYyt2jC62_y6D_xwg9rp10UKTtgM_RK2YxETgIoFiC9rgYwxQ62VwbbpEE6zXPvXGp17L0pLrjU_NU-58VzCULVR_qZ3ABNxuAUhnrhwEHa2DzkLlAtheV979U_EDnpiFAg</recordid><startdate>196410</startdate><enddate>196410</enddate><creator>Kalnins, V.I.</creator><creator>Stich, H.F.</creator><creator>Bencosme, S.A.</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>196410</creationdate><title>Fine structure of the nucleolar organizer of salivary gland chromosome of chironomids</title><author>Kalnins, V.I. ; Stich, H.F. ; Bencosme, S.A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-20d58a9206e50e1ef55647a644e95b5c93339b2f103ee68e21b9b886f6125acd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1964</creationdate><topic>Animals</topic><topic>Cell Nucleus</topic><topic>Chromosomes</topic><topic>Diptera</topic><topic>Electrons</topic><topic>Microscopy</topic><topic>Microscopy, Electron</topic><topic>Nucleolus Organizer Region</topic><topic>Old Medline</topic><topic>Salivary Glands</topic><toplevel>online_resources</toplevel><creatorcontrib>Kalnins, V.I.</creatorcontrib><creatorcontrib>Stich, H.F.</creatorcontrib><creatorcontrib>Bencosme, S.A.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of ultrastructure research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kalnins, V.I.</au><au>Stich, H.F.</au><au>Bencosme, S.A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fine structure of the nucleolar organizer of salivary gland chromosome of chironomids</atitle><jtitle>Journal of ultrastructure research</jtitle><addtitle>J Ultrastruct Res</addtitle><date>1964-10</date><risdate>1964</risdate><volume>11</volume><issue>3</issue><spage>282</spage><epage>291</epage><pages>282-291</pages><issn>0022-5320</issn><eissn>1878-2345</eissn><abstract>Electron microscopic studies of the salivary gland chromosomes of
C. plumosus and
C. cingulatus have shown that the chromosome region associated with the nucleolus proper is characterized by coils of 100 Å chromosome fibers, pars amorpha, and nucleolonema. These three components form a disklike structure extending through the chromosome. Coils of 100 Å chromosome fibers also extend into the nucleolus proper. The intrachromosomal pars amorpha and nucleolonema resemble those of the nucleolus proper. It is suggested that only the coils of 100 Å chromosome fibers represent the nucleolar organizer.</abstract><cop>United States</cop><pub>Elsevier B.V</pub><pmid>14230091</pmid><doi>10.1016/S0022-5320(64)90033-4</doi><tpages>10</tpages></addata></record> |
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| ispartof | Journal of ultrastructure research, 1964-10, Vol.11 (3), p.282-291 |
| issn | 0022-5320 1878-2345 |
| language | eng |
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| source | MEDLINE; Alma/SFX Local Collection |
| subjects | Animals Cell Nucleus Chromosomes Diptera Electrons Microscopy Microscopy, Electron Nucleolus Organizer Region Old Medline Salivary Glands |
| title | Fine structure of the nucleolar organizer of salivary gland chromosome of chironomids |
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