152 lines
34 KiB
XML
152 lines
34 KiB
XML
<document id="0D96541C1D3964C0AF33D0B5D144FC4D" ID-CLB-Dataset="7643" ID-DOI="10.1206/906.1" ID-GBIF-Dataset="15ad630f-eff2-451d-a5f8-22731ff53851" ID-ISSN="0003-0090" ID-Zenodo-Dep="4612269" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1615992761985" checkinUser="felipe" docAuthor="Lipke, Elisabeth & Michalik, Peter" docDate="2015" docId="03E487E03034214E2E87A22763E67D63" docLanguage="en" docName="BulAmeMusNatHis.2015.396.1-72.pdf" docOrigin="Bulletin of the American Museum of Natural History 2015 (396)" docSource="http://www.bioone.org/doi/10.1206/906.1" docStyle="DocumentStyle:C5E2DA72A22EF33813C92A197453A310.5:BulAmeMusNatHis.2011-.journal_article.0cover" docStyleId="C5E2DA72A22EF33813C92A197453A310" docStyleName="BulAmeMusNatHis.2011-.journal_article.0cover" docStyleVersion="5" docTitle="Orchestina" docType="treatment" docVersion="9" lastPageNumber="48" masterDocId="FFDDFF98301921612E5DA448625E7969" masterDocTitle="Evolutionary Morphology Of The Primary Male Reproductive System And Spermatozoa Of Goblin Spiders (Oonopidae; Araneae)" masterLastPageNumber="72" masterPageNumber="1" pageNumber="46" updateTime="1698933598634" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="1A7E47C5B10E8EE317D8B7882A2CA547">Evolutionary Morphology Of The Primary Male Reproductive System And Spermatozoa Of Goblin Spiders (Oonopidae; Araneae)</mods:title>
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<mods:namePart id="FDFBF6786BF4AB81123C2EC656EE48C6">Lipke, Elisabeth</mods:namePart>
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<mods:namePart id="29AED6BE024C5E217A11A8382A100AA9">Michalik, Peter</mods:namePart>
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<treatment id="03E487E03034214E2E87A22763E67D63" ID-DOI="http://doi.org/10.5281/zenodo.4633320" ID-GBIF-Taxon="180663271" ID-Zenodo-Dep="4633320" LSID="urn:lsid:plazi:treatment:03E487E03034214E2E87A22763E67D63" httpUri="http://treatment.plazi.org/id/03E487E03034214E2E87A22763E67D63" lastPageId="47" lastPageNumber="48" pageId="45" pageNumber="46">
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<subSubSection id="C357657D3034214C2E87A22763B07FEF" box="[218,494,1647,1670]" pageId="45" pageNumber="46" type="nomenclature">
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<paragraph id="8BF236F63034214C2E87A22763B07FEF" blockId="45.[218,494,1647,1670]" box="[218,494,1647,1670]" pageId="45" pageNumber="46">
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<heading id="D0BA819A3034214C2E87A22763B07FEF" box="[218,494,1647,1670]" centered="true" fontSize="9" level="2" pageId="45" pageNumber="46" reason="2">
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<taxonomicName id="4C4D4D753034214C2E87A227630B7FEF" ID-CoL="63HFK" ID-ENA="1498307" box="[218,341,1647,1670]" class="Arachnida" family="Oonopidae" genus="Orchestina" kingdom="Animalia" order="Araneae" pageId="45" pageNumber="46" phylum="Arthropoda" rank="genus">
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<emphasis id="B939EAE43034214C2E87A227630B7FEF" box="[218,341,1647,1670]" italics="true" pageId="45" pageNumber="46">Orchestina</emphasis>
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</taxonomicName>
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sp. 1 (
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<collectingCountry id="F35A76663034214C2FFBA23863B87FEF" box="[422,486,1648,1670]" name="Chile" pageId="45" pageNumber="46">Chile</collectingCountry>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C357657D3034214E2E27A2EF63E67D63" lastPageId="47" lastPageNumber="48" pageId="45" pageNumber="46" type="description">
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<paragraph id="8BF236F63034214C2E27A2EF60347FB5" blockId="45.[93,619,1703,1756]" pageId="45" pageNumber="46">
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SPERM TRANSFER FORM (
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<figureCitation id="13762A733034214C2F9AA2EF60747FD6" box="[455,554,1703,1727]" captionStart="Fig" captionStartId="31.[116,155,994,1013]" captionTargetBox="[100,1185,211,969]" captionTargetId="figure-275@31.[99,1186,207,971]" captionTargetPageId="31" captionText="Fig. 26. Surface reconstruction of parts of the highly convoluted deferent ducts and sperm transfer forms of Orchestina sp. 1. (Chile), as based on serial light-microscopy images, illustrating the shape and arrangement of synspermia within the lumen of the deferent duct and the two fused sperm within one sperm conjugate. The axoneme is hypothetically reconstructed based on the presence of dense microtubular network within the cytoplasm of the sperm conjugate." figureDoi="http://doi.org/10.5281/zenodo.4612353" httpUri="https://zenodo.org/record/4612353/files/figure.png" pageId="45" pageNumber="46">figs. 26</figureCitation>
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,
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<figureCitation id="13762A733034214C2C60A2EF60007FD6" box="[573,606,1703,1727]" captionStart="Fig" captionStartId="32.[150,188,1005,1024]" captionTargetBox="[128,1230,207,982]" captionTargetId="figure-237@32.[128,1230,207,982]" captionTargetPageId="32" captionText="Fig. 27. Characteristics of synspermia of Orchestina sp. 1 (Chile). A: The synspermia are surrounded by a thin, electron-dense secretion sheath; a distinct cap is formed. B: The periphery of the membrane of syncytium is composed of several small constrictions. C: Sperm of one sperm conjugate are either located next to each other, or arranged in tandem position. D: The sperm cell components are not coiled and thus sprawled within the sperm conjugate. E: The two centrioles are arranged rectangularly." figureDoi="http://doi.org/10.5281/zenodo.4612357" httpUri="https://zenodo.org/record/4612357/files/figure.png" pageId="45" pageNumber="46">27</figureCitation>
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): Long (.80 Mm), tubelike synspermia (
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<figureCitation id="13762A733034214C2C4FA28E60007FB5" box="[530,606,1734,1756]" captionStart="Fig" captionStartId="31.[116,155,994,1013]" captionTargetBox="[100,1185,211,969]" captionTargetId="figure-275@31.[99,1186,207,971]" captionTargetPageId="31" captionText="Fig. 26. Surface reconstruction of parts of the highly convoluted deferent ducts and sperm transfer forms of Orchestina sp. 1. (Chile), as based on serial light-microscopy images, illustrating the shape and arrangement of synspermia within the lumen of the deferent duct and the two fused sperm within one sperm conjugate. The axoneme is hypothetically reconstructed based on the presence of dense microtubular network within the cytoplasm of the sperm conjugate." figureDoi="http://doi.org/10.5281/zenodo.4612353" httpUri="https://zenodo.org/record/4612353/files/figure.png" pageId="45" pageNumber="46">fig. 26</figureCitation>
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),
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</paragraph>
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<paragraph id="8BF236F63034214F2CC6A23860437FB6" blockId="45.[667,1193,1647,1759]" lastBlockId="46.[128,654,1647,1759]" lastPageId="46" lastPageNumber="47" pageId="45" pageNumber="46">
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comprising two sperm (
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<figureCitation id="13762A733034214C2DE6A238665B7FEC" box="[955,1029,1647,1670]" captionStart="Fig" captionStartId="31.[116,155,994,1013]" captionTargetBox="[100,1185,211,969]" captionTargetId="figure-275@31.[99,1186,207,971]" captionTargetPageId="31" captionText="Fig. 26. Surface reconstruction of parts of the highly convoluted deferent ducts and sperm transfer forms of Orchestina sp. 1. (Chile), as based on serial light-microscopy images, illustrating the shape and arrangement of synspermia within the lumen of the deferent duct and the two fused sperm within one sperm conjugate. The axoneme is hypothetically reconstructed based on the presence of dense microtubular network within the cytoplasm of the sperm conjugate." figureDoi="http://doi.org/10.5281/zenodo.4612353" httpUri="https://zenodo.org/record/4612353/files/figure.png" pageId="45" pageNumber="46">fig. 26</figureCitation>
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) that are arranged consecutively to each other (
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<figureCitation id="13762A733034214C2A0DA2C566C37FCA" box="[1104,1181,1677,1699]" captionStart="Fig" captionStartId="31.[116,155,994,1013]" captionTargetBox="[100,1185,211,969]" captionTargetId="figure-275@31.[99,1186,207,971]" captionTargetPageId="31" captionText="Fig. 26. Surface reconstruction of parts of the highly convoluted deferent ducts and sperm transfer forms of Orchestina sp. 1. (Chile), as based on serial light-microscopy images, illustrating the shape and arrangement of synspermia within the lumen of the deferent duct and the two fused sperm within one sperm conjugate. The axoneme is hypothetically reconstructed based on the presence of dense microtubular network within the cytoplasm of the sperm conjugate." figureDoi="http://doi.org/10.5281/zenodo.4612353" httpUri="https://zenodo.org/record/4612353/files/figure.png" pageId="45" pageNumber="46">fig. 26</figureCitation>
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). A thick electron-dense secretion sheath (,
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<quantity id="4CB59B133034214C2CE7A28161487FB7" box="[698,790,1737,1758]" metricMagnitude="-7" metricUnit="m" metricValue="8.0" pageId="45" pageNumber="46" unit="nm" value="800.0">800 nm</quantity>
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) surrounds the sperm conjugates (
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<figureCitation id="13762A733037214F2EDAA227628D7FEC" box="[135,211,1647,1669]" captionStart="Fig" captionStartId="32.[150,188,1005,1024]" captionTargetBox="[128,1230,207,982]" captionTargetId="figure-237@32.[128,1230,207,982]" captionTargetPageId="32" captionText="Fig. 27. Characteristics of synspermia of Orchestina sp. 1 (Chile). A: The synspermia are surrounded by a thin, electron-dense secretion sheath; a distinct cap is formed. B: The periphery of the membrane of syncytium is composed of several small constrictions. C: Sperm of one sperm conjugate are either located next to each other, or arranged in tandem position. D: The sperm cell components are not coiled and thus sprawled within the sperm conjugate. E: The two centrioles are arranged rectangularly." figureDoi="http://doi.org/10.5281/zenodo.4612357" httpUri="https://zenodo.org/record/4612357/files/figure.png" pageId="46" pageNumber="47">fig. 27</figureCitation>
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A–D). Sperm cell components are uncoiled (
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<figureCitation id="13762A733037214F2EAFA2C563607FCA" box="[242,318,1677,1699]" captionStart="Fig" captionStartId="31.[116,155,994,1013]" captionTargetBox="[100,1185,211,969]" captionTargetId="figure-275@31.[99,1186,207,971]" captionTargetPageId="31" captionText="Fig. 26. Surface reconstruction of parts of the highly convoluted deferent ducts and sperm transfer forms of Orchestina sp. 1. (Chile), as based on serial light-microscopy images, illustrating the shape and arrangement of synspermia within the lumen of the deferent duct and the two fused sperm within one sperm conjugate. The axoneme is hypothetically reconstructed based on the presence of dense microtubular network within the cytoplasm of the sperm conjugate." figureDoi="http://doi.org/10.5281/zenodo.4612353" httpUri="https://zenodo.org/record/4612353/files/figure.png" pageId="46" pageNumber="47">fig. 26</figureCitation>
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) and surrounded by a small amount of conspicuous electron-dense fibrils, mitochondria are present (
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<figureCitation id="13762A733037214F2FEFA281604F7FB6" box="[434,529,1737,1759]" captionStart="Fig" captionStartId="32.[150,188,1005,1024]" captionTargetBox="[128,1230,207,982]" captionTargetId="figure-237@32.[128,1230,207,982]" captionTargetPageId="32" captionText="Fig. 27. Characteristics of synspermia of Orchestina sp. 1 (Chile). A: The synspermia are surrounded by a thin, electron-dense secretion sheath; a distinct cap is formed. B: The periphery of the membrane of syncytium is composed of several small constrictions. C: Sperm of one sperm conjugate are either located next to each other, or arranged in tandem position. D: The sperm cell components are not coiled and thus sprawled within the sperm conjugate. E: The two centrioles are arranged rectangularly." figureDoi="http://doi.org/10.5281/zenodo.4612357" httpUri="https://zenodo.org/record/4612357/files/figure.png" pageId="46" pageNumber="47">fig. 27B</figureCitation>
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).
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</paragraph>
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<caption id="DF32667E3037214F2ECBA1CF61BE7F50" ID-DOI="http://doi.org/10.5281/zenodo.4612398" ID-Zenodo-Dep="4612398" httpUri="https://zenodo.org/record/4612398/files/figure.png" pageId="46" pageNumber="47" startId="46.[150,188,1415,1434]" targetBox="[128,1229,207,1392]" targetPageId="46">
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<paragraph id="8BF236F63037214F2ECBA1CF61BE7F50" blockId="46.[128,1228,1414,1594]" pageId="46" pageNumber="47">
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Fig. 41. Characteristics of spermiogenesis of
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<taxonomicName id="4C4D4D753037214F2C26A1CE61097CF0" authorityName="Platnick, Berniker and Bonaldo" authorityYear="2013" box="[635,855,1414,1434]" class="Arachnida" family="Oonopidae" genus="Tinadysderina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="46" pageNumber="47" phylum="Arthropoda" rank="species" species="otonga">
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<emphasis id="B939EAE43037214F2C26A1CE61097CF0" box="[635,855,1414,1434]" italics="true" pageId="46" pageNumber="47">Tinadysderina otonga</emphasis>
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</taxonomicName>
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.
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<emphasis id="B939EAE43037214F2D39A1CF61287CF3" bold="true" box="[868,886,1415,1434]" pageId="46" pageNumber="47">A</emphasis>
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: The implantation fossa of early spermatids is already filled with a large amount of mitochondria.
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<emphasis id="B939EAE43037214F2D68A1E9611B7CDD" bold="true" box="[821,837,1441,1460]" pageId="46" pageNumber="47">B</emphasis>
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: The subacrosomal space is enlarged toward the anterior pole of nucleus.
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<emphasis id="B939EAE43037214F2C52A1F4607E7CA6" bold="true" box="[527,544,1468,1487]" pageId="46" pageNumber="47">C</emphasis>
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: The chromatin appears fibrillar in mid spermatids.
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<emphasis id="B939EAE43037214F2A00A1F4662E7CA6" bold="true" box="[1117,1136,1468,1487]" pageId="46" pageNumber="47">D</emphasis>
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: During further development, the chromatin condenses irregularly as indicated by the manchette of microtubules, which illustrates the actual dimensions of the nucleus.
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<emphasis id="B939EAE43037214F2C89A1B960BA7F6D" bold="true" box="[724,740,1521,1540]" pageId="46" pageNumber="47">E</emphasis>
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: Little electron-dense material surrounds the microtubules of the axoneme.
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<emphasis id="B939EAE43037214F2FEBA244639B7F76" bold="true" box="[438,453,1548,1567]" pageId="46" pageNumber="47">F</emphasis>
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: In addition to mitochondria, small electron-dense secretions are located in the IF.
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<emphasis id="B939EAE43037214F2E8DA26E62BD7F50" bold="true" box="[208,227,1574,1593]" pageId="46" pageNumber="47">G</emphasis>
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: At the end of spermiogenesis four spermatids fuse to form synspermia.
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</paragraph>
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</caption>
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<paragraph id="8BF236F63037214F2C87A22566927FB6" blockId="46.[701,1228,1645,1759]" pageId="46" pageNumber="47">
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SPERMATOZOA (
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<figureCitation id="13762A733037214F2DC3A22561AA7FEC" box="[926,1012,1645,1669]" captionStart="Fig" captionStartId="32.[150,188,1005,1024]" captionTargetBox="[128,1230,207,982]" captionTargetId="figure-237@32.[128,1230,207,982]" captionTargetPageId="32" captionText="Fig. 27. Characteristics of synspermia of Orchestina sp. 1 (Chile). A: The synspermia are surrounded by a thin, electron-dense secretion sheath; a distinct cap is formed. B: The periphery of the membrane of syncytium is composed of several small constrictions. C: Sperm of one sperm conjugate are either located next to each other, or arranged in tandem position. D: The sperm cell components are not coiled and thus sprawled within the sperm conjugate. E: The two centrioles are arranged rectangularly." figureDoi="http://doi.org/10.5281/zenodo.4612357" httpUri="https://zenodo.org/record/4612357/files/figure.png" pageId="46" pageNumber="47">fig. 27</figureCitation>
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):
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<emphasis id="B939EAE43037214F2A50A22760AB7FCB" bold="true" pageId="46" pageNumber="47">Acrosomal complex:</emphasis>
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AV small, cylindrical. AF originates from the subacrosomal space and extend into the nuclear canal.
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<emphasis id="B939EAE43037214F2DCCA28161AC7FB7" bold="true" box="[913,1010,1737,1758]" pageId="46" pageNumber="47">Nucleus:</emphasis>
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prcN tubelike and
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</paragraph>
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<paragraph id="8BF236F63036214E2E00A49D630578F5" blockId="47.[93,620,211,1034]" pageId="47" pageNumber="48">
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elongated (,19.2 Mm) with deep implantation fossa that extends as far as the anterior pole of the nucleus and is filled with a distinct, electron-dense centriolar adjunct (
|
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<figureCitation id="13762A733036214E2FA1A5656001782D" box="[508,607,301,324]" captionStart="Fig" captionStartId="32.[150,188,1005,1024]" captionTargetBox="[128,1230,207,982]" captionTargetId="figure-237@32.[128,1230,207,982]" captionTargetPageId="32" captionText="Fig. 27. Characteristics of synspermia of Orchestina sp. 1 (Chile). A: The synspermia are surrounded by a thin, electron-dense secretion sheath; a distinct cap is formed. B: The periphery of the membrane of syncytium is composed of several small constrictions. C: Sperm of one sperm conjugate are either located next to each other, or arranged in tandem position. D: The sperm cell components are not coiled and thus sprawled within the sperm conjugate. E: The two centrioles are arranged rectangularly." figureDoi="http://doi.org/10.5281/zenodo.4612357" httpUri="https://zenodo.org/record/4612357/files/figure.png" pageId="47" pageNumber="48">fig. 27C</figureCitation>
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). peN absent (
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<figureCitation id="13762A733036214E2F5EA503633A7808" box="[259,356,331,353]" captionStart="Fig" captionStartId="32.[150,188,1005,1024]" captionTargetBox="[128,1230,207,982]" captionTargetId="figure-237@32.[128,1230,207,982]" captionTargetPageId="32" captionText="Fig. 27. Characteristics of synspermia of Orchestina sp. 1 (Chile). A: The synspermia are surrounded by a thin, electron-dense secretion sheath; a distinct cap is formed. B: The periphery of the membrane of syncytium is composed of several small constrictions. C: Sperm of one sperm conjugate are either located next to each other, or arranged in tandem position. D: The sperm cell components are not coiled and thus sprawled within the sperm conjugate. E: The two centrioles are arranged rectangularly." figureDoi="http://doi.org/10.5281/zenodo.4612357" httpUri="https://zenodo.org/record/4612357/files/figure.png" pageId="47" pageNumber="48">fig. 27E</figureCitation>
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). NC located in the periphery.
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<emphasis id="B939EAE43036214E2E82A520630F7814" bold="true" box="[223,337,360,381]" pageId="47" pageNumber="48">Axoneme:</emphasis>
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short (,19.2 Mm); 9+3 microtubular pattern.
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</paragraph>
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<paragraph id="8BF236F63036214E2E27A5EB63E67D63" blockId="47.[93,620,211,1034]" pageId="47" pageNumber="48">
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NOTES ON SPERMIOGENESIS (
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<figureCitation id="13762A733036214E2C56A5EB600078D2" box="[523,606,419,443]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28</figureCitation>
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): Within the testis all stages of spermiogenesis are visible. A small, developing AV is attached to the cell membrane (
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<figureCitation id="13762A733036214E2C59A5B560387B7B" box="[516,614,509,531]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28A</figureCitation>
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, inset) and extends toward the anterior pole of nucleus, from which it is separated by a distinct electron-dense plate (
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<figureCitation id="13762A733036214E2F9BA61E60747B05" box="[454,554,598,620]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28A</figureCitation>
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). The AF originates from the subacrosomal space. During development of the spermatids the chromatin condenses and appears fibrillar in midspermatids (
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<figureCitation id="13762A733036214E2F7DA68463327B8B" box="[288,364,716,738]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28</figureCitation>
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B–D). The deep implantation fossa of early and midspermatids is filled with numerous microfilaments (
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<figureCitation id="13762A733036214E2C7DA74F62FA7A53" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28 C, D</figureCitation>
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) and few electron-dense secretions (
|
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<figureCitation id="13762A733036214E2E38A70B62B37A31" box="[101,237,835,857]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28C, D</figureCitation>
|
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) that form a distinct centriolar adjunct in late spermatids, which completely covers the proximal centriole (
|
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<figureCitation id="13762A733036214E2FE7A73660587AFD" box="[442,518,894,916]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28</figureCitation>
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E–G). In the periphery of the developing spermatids numerous looplike constrictions are visible (
|
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<figureCitation id="13762A733036214E2E38A79E629A7A85" box="[101,196,982,1004]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28H</figureCitation>
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inset), resulting in a fringed appearance of the latter (
|
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<figureCitation id="13762A733036214E2F6DA7BC63F47D63" box="[304,426,1012,1034]" captionStart="Fig" captionStartId="33.[116,155,1415,1434]" captionTargetBox="[93,1195,207,1393]" captionTargetId="figure-0@33.[93,1195,207,1393]" captionTargetPageId="33" captionText="Fig. 28. Characteristics of spermiogenesis of Orchestina sp. 1 (Chile). A: At the anterior pole of the nucleus a small AV is formed, which is separated from the nucleus by a distinct, electron-dense plate. The AF originates from the subacrosomal space (inset). B: The chromatin starts condensation around the IF, which extends nearly as far as the anterior pole of the nucleus. C: The deep IF that contains the two centrioles is stabilized with microfilaments. D: These microfilaments are arranged in parallel. E: The axoneme originates from the distal centriole, a peN is not developed. F: In late spermatids a distinct centriolar adjunct is present in the IF. G: In addition to the manchette of microtubules, several microtubules arrange around the nucleus in late spermatids. H: The periphery of the spermatids possesses numerous looplike constrictions, which are obvious in higher magnification in (inset). I: Finally, two sperm fuse entirely and form large synspermia, the cytoplasm of which further compresses, while the sperm conjugates elongate." figureDoi="http://doi.org/10.5281/zenodo.4612359" httpUri="https://zenodo.org/record/4612359/files/figure.png" pageId="47" pageNumber="48">fig. 28H, I</figureCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |