{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/87220"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/87220","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Growth and development of the megagametophyte of the vascular plant Selaginella (Lycopsida) on defined media","abstract":"Megagametophytes of the heterosporous lower vascular plant, Selaginella, were cultured on a variety of types and concentrations of carbon sources (glucose, sucrose, trehalose, and sorbitol), with and without B vitamins, in an attempt to induce apogamy. Without B vitamins growth was enhanced on glucose and trehalose, but not on sucrose. With B vitamins growth was enhanced on all types and concentrations of carbon sources. Enhanced growth involved the production of greater numbers of cells in the tissue. Chlorophyll-a was present in megagametophytes cultured on many of the treatments, including control treatments without supplemental carbon. Apogamy was not induced.","abstract_html":"Megagametophytes of the heterosporous lower vascular plant, Selaginella, were cultured on a variety of types and concentrations of carbon sources (glucose, sucrose, trehalose, and sorbitol), with and without B vitamins, in an attempt to induce apogamy. Without B vitamins growth was enhanced on glucose and trehalose, but not on sucrose. With B vitamins growth was enhanced on all types and concentrations of carbon sources. Enhanced growth involved the production of greater numbers of cells in the tissue. Chlorophyll-a was present in megagametophytes cultured on many of the treatments, including control treatments without supplemental carbon. Apogamy was not induced.","abstract_has_math":false,"creators":["Koller, Alan Leonard"],"institution":"Virginia Polytechnic Institute and State University","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Botany","degree_department":"Botany","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1982,"date_issued":"1982","date_published":"1982","updated_at":"2026-07-22T22:19:51Z","subjects":[],"languages":["en_US"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/87220","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Botany"]},{"key":"dc:creator","label":"Author","values":["Koller, Alan Leonard"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-01-31T18:27:20Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2019-01-31T18:27:20Z"]},{"key":"dc:date.issued","label":"Date","values":["1982"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Botany"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/87220"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Megagametophytes of the heterosporous lower vascular plant, Selaginella, were cultured on a variety of types and concentrations of carbon sources (glucose, sucrose, trehalose, and sorbitol), with and without B vitamins, in an attempt to induce apogamy. Without B vitamins growth was enhanced on glucose and trehalose, but not on sucrose. With B vitamins growth was enhanced on all types and concentrations of carbon sources. Enhanced growth involved the production of greater numbers of cells in the tissue. Chlorophyll-a was present in megagametophytes cultured on many of the treatments, including control treatments without supplemental carbon. Apogamy was not induced."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Growth and development of the megagametophyte of the vascular plant Selaginella (Lycopsida) on defined media"]}]}],"canonical_facts":{"dc:contributor.department":["Botany"],"dc:creator":["Koller, Alan Leonard"],"dc:date.accessioned":["2019-01-31T18:27:20Z"],"dc:date.available":["2019-01-31T18:27:20Z"],"dc:date.issued":["1982"],"dc:description.abstract":["Megagametophytes of the heterosporous lower vascular plant, Selaginella, were cultured on a variety of types and concentrations of carbon sources (glucose, sucrose, trehalose, and sorbitol), with and without B vitamins, in an attempt to induce apogamy. Without B vitamins growth was enhanced on glucose and trehalose, but not on sucrose. With B vitamins growth was enhanced on all types and concentrations of carbon sources. Enhanced growth involved the production of greater numbers of cells in the tissue. Chlorophyll-a was present in megagametophytes cultured on many of the treatments, including control treatments without supplemental carbon. Apogamy was not induced."],"dc:description.degree":["Master of Science"],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/10919/87220"],"dc:language.iso":["en_US"],"dc:publisher":["Virginia Polytechnic Institute and State University"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Growth and development of the megagametophyte of the vascular plant Selaginella (Lycopsida) on defined media"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Botany"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:19:51Z"}