The ultrastructure of cells and cellulose membranes in Acrasiae
The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations,...
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E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1959 |
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| Reproduktion: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
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| Übergeordnetes Werk: |
in: Experimental Cell Research - Amsterdam : Elsevier, 18(1959), 3, Seite 425-453 |
| Übergeordnetes Werk: |
volume:18 ; year:1959 ; number:3 ; pages:425-453 |
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| 520 | |a The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. | ||
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(DE-627)NLEJ184371139 (DE-599)GBVNLZ184371139 DE-627 ger DE-627 rakwb eng The ultrastructure of cells and cellulose membranes in Acrasiae 1959 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Gezelius, K. oth in Experimental Cell Research Amsterdam : Elsevier 18(1959), 3, Seite 425-453 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:18 year:1959 number:3 pages:425-453 http://dx.doi.org/10.1016/0014-4827(59)90310-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 18 1959 3 425-453 |
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(DE-627)NLEJ184371139 (DE-599)GBVNLZ184371139 DE-627 ger DE-627 rakwb eng The ultrastructure of cells and cellulose membranes in Acrasiae 1959 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Gezelius, K. oth in Experimental Cell Research Amsterdam : Elsevier 18(1959), 3, Seite 425-453 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:18 year:1959 number:3 pages:425-453 http://dx.doi.org/10.1016/0014-4827(59)90310-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 18 1959 3 425-453 |
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(DE-627)NLEJ184371139 (DE-599)GBVNLZ184371139 DE-627 ger DE-627 rakwb eng The ultrastructure of cells and cellulose membranes in Acrasiae 1959 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Gezelius, K. oth in Experimental Cell Research Amsterdam : Elsevier 18(1959), 3, Seite 425-453 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:18 year:1959 number:3 pages:425-453 http://dx.doi.org/10.1016/0014-4827(59)90310-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 18 1959 3 425-453 |
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(DE-627)NLEJ184371139 (DE-599)GBVNLZ184371139 DE-627 ger DE-627 rakwb eng The ultrastructure of cells and cellulose membranes in Acrasiae 1959 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Gezelius, K. oth in Experimental Cell Research Amsterdam : Elsevier 18(1959), 3, Seite 425-453 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:18 year:1959 number:3 pages:425-453 http://dx.doi.org/10.1016/0014-4827(59)90310-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 18 1959 3 425-453 |
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(DE-627)NLEJ184371139 (DE-599)GBVNLZ184371139 DE-627 ger DE-627 rakwb eng The ultrastructure of cells and cellulose membranes in Acrasiae 1959 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Gezelius, K. oth in Experimental Cell Research Amsterdam : Elsevier 18(1959), 3, Seite 425-453 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:18 year:1959 number:3 pages:425-453 http://dx.doi.org/10.1016/0014-4827(59)90310-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 18 1959 3 425-453 |
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The ultrastructure of cells and cellulose membranes in Acrasiae |
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The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. |
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The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. |
| abstract_unstemmed |
The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ184371139</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210706230342.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070506s1959 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ184371139</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVNLZ184371139</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="4"><subfield code="a">The ultrastructure of cells and cellulose membranes in Acrasiae</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1959</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The ultrastructure of the cells and cellulose membranes in Acrasiae has been studied by means of electron microscopy using ultrathin sections of Dictyostelium discoideum, D. purpureum, D. sphaerocephalum and Acytostelium leptosomum.The vacuoles of the myxamoebae contain multi-layered configurations, possibly waste products formed from the bacteria.The cell membrane and the vacuole membrane are double lined with a total thickness of 80-90 A.The nuclear membrane is double. In oblique sections, ovals with a diameter of 800-900 A occur.The mitochondria are surrounded by a 100 A thick double outer membrane. The arrangement of the branching inner membranes is complicated.The cells contain organelles with a fine structure resembling that of crystallized substances.The cytoplasm contains typical α-cytomembranes.The spores of D. purpureum, D. sphaerocephalum and Acytostelium show the same double walls as earlier found in D. discoideum [25].The sorophore sheath in Dictyostelium is double [13] and the inner layer is probably formed inside the stalk in connection with cell wall formation.The stalk in Acytostelium consists of parallel fibril bundles. No real lumen exists within the stalk. X-ray analyses of the untreated stalk substance do not show cellulose reflections. After purification with hot aqueous 1 per cent sodium hydroxide, the stalk substance gives a X-ray diffraction pattern with reflections characteristic for native cellulose. The width of the cellulose fibrils is about 100 A. From a comparison between Acytostelium and Dictyostelium it is concluded that the stalk of Acytostelium and the sorophore outer sheath layer of Dictyostelium most probably are homologous.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Elsevier Journal Backfiles on ScienceDirect 1907 - 2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gezelius, K.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Experimental Cell Research</subfield><subfield code="d">Amsterdam : Elsevier</subfield><subfield code="g">18(1959), 3, Seite 425-453</subfield><subfield code="w">(DE-627)NLEJ177031808</subfield><subfield code="w">(DE-600)1466780-0</subfield><subfield code="x">0014-4827</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:18</subfield><subfield code="g">year:1959</subfield><subfield code="g">number:3</subfield><subfield code="g">pages:425-453</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1016/0014-4827(59)90310-6</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_H</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SDJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">18</subfield><subfield code="j">1959</subfield><subfield code="e">3</subfield><subfield code="h">425-453</subfield></datafield></record></collection>
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